Текст
                    inside

the chess mind

hou players
of alL levels
think about the game

I CHESS JACOB AAGAARD

Hello everybody!! Hola a lodos!! "We are a group of chess fans who are producing chess material. We have several projects and ideas. We have members from all around the world, belonging to different cultures and speaking different languages, all of us joined by our common love for chess!." We hope you will enjoy our work! ”Somos un grupo de fanaticos del ajedrez, que estamos tratando de producir material de ajedrez, desarrollando diferentes proyectos e ideas. Tenemos miembros de diferentes partes del mundo, provenientes de diferentes culturas, hablando diferentes lenguas, unidos por nuestra pasion por el ajedrez!.” Esperamos que disfruten de esta muestra de nuestro trabajo!. If you are interested in joining us, or send any comments drop us an email at: thecaissalovers@gmail.com Si alguien estuviese interesado en unirse al grupo nos pueden escribir a: thecaissalovers@gmail.com Best regards!! Saludos! " Caissa Lovers'*
CONTENTS Introduction 1 The Test Positions 8 2 The Participants 13 3 Test Position 1 29 4 Test Position 2 39 5 Test Position 3 50 6 Test Position 4 60 7 Test Position 5 65 8 Test Position 6 75 9 Test Position 7 89 10 Test Position 8 98 11 Test Position 9 112 12 Test Position 10 123 13 What can we learn from the Tests? 142
INTRODUCTION There are two kinds of chess books. There are the books the authors for some reason just needed to write; and then there are the books the publisher wants the author, any author, to write. The first are usually books with general themes: biographies on long dead Russian International Masters (who grew up in a Communist system, and there- fore have no place in their value-system for material concerns), or other kinds of idio- syncrasies, which might be weird but definitely worth reading. The second kind of books are mainly dedicated to the opening, often part of a series with a fixed number of pages and maybe even a written formula no one ever reads anyway. Both kinds of books have their relevance and I enjoy to read and write both types. But sometimes there are hybrid projects, books that it could be argued include both categories. This book started out being one of these, when my editor, Byron Jacobs, in his eternal hunt for fame, glory and not the least wealth, asked me to write a book with the title Inside the Chess Mind comparing players of different strength. His choice in asking me seemed obvious due to my knowledge of cognitive science and my oc- cupation of full time chess writer and trainer, with pupils of different age groups and different playing levels. Or at least 1 would like to think so. Reality has shown me there are certain advantages connected with my surname Aagaard, which places me almost last in Danish phone books but first in chess databases and outlook archives around the world. When Byron and others think about who they should hire for a project they go to their email program and scan the list until they find someone suit- able. So often I am not the best choice, but simply the first and lazy choice. At least that is my theory. But anyway, I was asked and my imagination was immediately fuelled with different ideas and possible exercises. And as my hobby as a fourth category guitarist in a third category band has made me acquire a minidisk-player and a microphone, and as I have a large number of exercises in different archives used in general training, I al- ready had the tools necessary to perform the experiments. The first consideration in doing something like this is, of course, if anything similar
has ever been done before. It has. The Dutch psychologist and chess fan Adriaan de Groot tested a lot of top chess players in the late 30’s and early 40’s (the decades, not the age groups). This led to different conclusions, which it is logical to relate to. But then we are already at the second consideration. What kind of book would I like to write, and with that comes: what kind of book would I personally have Eked to read, had I not disposed of my last name in favour of my middle name at the age of 12 (which would have meant that someone else would have been asked to write the book). I quickly came to the conclusion that a scientifically-oriented book was not really something that interested me. What fascinated me about this project was the diversity I expected in the tests, originating from the test subjects’ different personali- ties, age, idiosyncrasies and backgrounds. This is what 1 have tried to bring into the book by quoting the players as precisely as possible while still making sense; i.e. avoid- ing redundancy and less coherent talking or, in other words, changing spoken lan- guage into written language. Still, though this book should be seen mostly as an empirical study — where the au- thor has aUowed the material to take its own form, and found himself messed up and confused as a twelve-year-old boy in a nudist colony — there has been some room for basic questions and conclusions along the way. The main conclusion is the limitation of the experiment as such. It almost instantly became obvious to me that the selection of exercises could have been cleverer and more rounded. Also, that in order to make any conclusions of scientific value, more tests would have been needed. Probably the best way would have been to do the tests at least three times (though maybe with dif- ferent exercises from time to time), allowing the possibility of reshaping the tests based on the conclusions of the first set of results. For practical reasons this was not possible, mainly because it was hard to summon the guts to ask people Eke Peter Heine Nielsen and Artur Yusupov to participate even once in the testing. Asking them to participate almost regularly would simply have been impossible — and inde- cent. Another important conclusion was that performance in the tests would never fully correspond with the actual playing strength of the different participants. (This goes beyond the obvious diversity of form on the day.) Practical use of and knowledge about opening theory does not play a great part in the testing (mainly because, as an author of many opening books, the subject has a tendency to be represented enough in my writing already); neither does the abiEty to sec simple tactics, nor the psycho- logical aspect of the game; minor piece endings and pawn endings are not repre- sented; chaotic positions are simply absent; closed positions also did not get a fair representation here (mainly because I had decided to give a solution to all exercises and would not have been able to write anything decent about a closed position). That every position has a final solution is both a strength and a weakness. It is certainly a strength for the book as a reading experience, but it does influence the comparative value of the exercises, as this greatly favours the logical player over the intuitive player (Peter Heine Nielsen vs. Artur Yusupov could be mentioned). 6
What is very important for me to stress — Silence now. Shut that book and listen. Hey! Open it again, I was just kidding — is that the exercises are not meant to be com- petitive in any way. To judge the performance of Peter Heine Nielsen against Yusu- pov, or Skovgaard against Skovgaard is not really interesting, as it would in no way reflect how these people would do in a real over-the-board game. The strength of a player in a fluent situation is not the same as that of the test room. The positions will naturally appeal more to some than others, and concentration level will not be that of the tournament hall for everyone. Talking into a microphone might decrease the abili- ties of one and increase the ability of another. What is interesting is to examine the thought process itself, and try to judge when it is successful and when it is unsuccessful, and why. Not that there will be an answer on how best to think, or a certain algorithm to follow. There simply cannot be, as there is no single answer. But with all its imperfections and reservations, this is a book about chess as the sport of the mind. It is a deep study of ten positions of different origin and character, and an insight into what different chess players of different strength have thought about them. This can be used as infotainment or even as a mir- ror to the reader, who is of course invited to do the exercises himself. Rather than giving answers, this book sets out to pose questions. Rather than to teach and preach a truth, this book is intelligent. Rather than being scientific or in- structional, this book wants to inspire and communicate. Chess is a game of beautiful complexity, evolved to give the most possible meaning to our many-sided imagina- tion, as well as the greatest possible challenge to our minds. Chess thinking is the es- sence of chess as an art and as a competitive sport. It is where we can be rewarded for our attempts to grasp the depth of this artistic combinatorial mathematics with mo- ments of clarity and revelation. This book is dedicated in great gratitude to its heroes: the people who were brave enough to open up their minds for the rest of us to gain some insight into the diver- sity of chess thinking. Jacob Aagaard, Copenhagen, May 2004.
CHA PTER ONE The Test Positions The following ten positions will be dis- cussed fot the next 150 pages of this book by chess players at all levels. But first you have the chance to compare your own findings with those of GMs Peter Heine Nielsen and Artur Yusupov, as well as those of IM Jesper Hall, Dr. Ivo Timmermans, Frit%8 tl 5, and several other really nice and smart people who play chess at different levels and who were kind enough to help me with this little project. The best method would probably be to try to solve the exercises in exactly the same fashion as they did. In order to do this you need to have a tape recorder or recordable minidisk, or just a micro- phone inserted into a computer. In case the reality check is of less importance to you, you can of course jot down candi- date moves and the most important main lines on a piece of paper. Only for Test Position 2 you need to have opposi- tion of some kind: either a friend who can use the comments in this book to play the strongest reply to almost any move you can come up with, or maybe more realistically, by playing the position against a strong chess-playing program such as FnAj 8, Here the computer should be given at least 10 seconds to come up with an answer, but not much more than that. That is if your computer has 256 Mb RAM and a processor of at least 1000 MHz. If your computer is slower, then give it more time. If you do not own a computer you can try the old trick with a piece of paper and the solu- tions. I would recommend that you do all the tests before proceeding with the book, as did the subjects, though the order in which you do them is com- pletely irrelevant. This will give a more continuous thought process: you will be concentrated and not starting from scratch each time. To complete the test will take somewhere around three hours all in all. The main reasons for doing these exercises as a reader is that, if you have not faced these positions with un- certainty yourself, it will be very difficult to associate with the challenges and diffi- culties of the participants in this experi- ment. The danger is that you will then find it less valuable to go through their 8
differently structured thought processes. The second best option is that you look at the positions and then follow the thought processes of the participants in order to learn more about the position as you go along. In both cases it is highly important that you refrain from looking at the solutions to the different exercises before you actually get to that part of the book. The eyes that see do structure the world, just as far as the world exists and is thereby within the structures we see. Imagine that you do not know the rules of chess and then try to look at the board without seeing possible moves, but only chunks of wood. It should not be possi- ble. Or that you do not see possible cap- tures. You cannot unlearn the rules of chess or forget how to take a piece. Equally, only with the assistance of time would you be able to forget the solutions, and be able to meet the positions anew. But it would be strange to go through the solutions to the 10 exercises and then put the book away in a drawer for three years before you continue reading it. So why not forget about looking at the solutions for now, and take a trip into the unknown together with these won- derful and intelligent and highly different people, who have been so kind as to look at these exercises and share their thought processes, well aware of the mis- takes they were bound to commit. Without further ado, let us turn to the different positions.
Test Position 1 Test Position 3 White to move. Take 5 minutes to find the strongest continuation, talking into a microphone or writing down your thoughts afterwards. White to play. Take 7 minutes to find the strongest continuation, talking into a microphone or writing down your thoughts afterwards. Test Position 2 Test Position 4 White to move. Take 30 minutes and play the white position as if it was a game and you had 30 minutes to the end of the game. This can be done against a friend who is finding the relevant replies in this book, or against a computer chess-playing program like White to move. Take 10 minutes to find the strongest continuation, talking into a microphone or writing down your thoughts afterwards.
Test Position 5 Test Position 7 Black to move. Take 6 minutes to find the strongest continuation, talking into a microphone or writing down your thoughts afterwards. Test Position 6 White to move. Take 5 minutes to find the strongest continuation, talking into a microphone or writing down your thoughts afterwards. Test Position 8 White to move. Take 8 minutes to find the strongest continuation, talking into a microphone or writing down your thoughts afterwards. Black to move. Take 12 minutes to find the strongest continuation, talking into a microphone or writing down your thoughts afterwards.
Test Position 9 Test Position 10 Black to move. Take 10 minutes to find the strongest continuation, talking into a microphone or writing down your thoughts afterwards. White to move. Find the strongest continuation. Do this talking to a micro- phone or taking notes on a piece of pa- per at timely intervals. Take the time you find necessary and write it down too.
CHAPTER TWO The Participants Grandmaster Artur Yusupov Artur is originally from Moscow, but now lives with his wife and his two chil- dren, a 12-year-old girl and a 1 O-year-old boy, in Weissenhorn in southern Ger- many. He considers his greatest achievement in life to be becoming a father to his children, but in chess reach- ing the semi-final of the candidates tour- nament on three separate occasions. His best world ranking was 3rd, in 1986, af- ter Kasparov and Karpov. He used to be a professional chess player, but these days he calls himself a professional trainer — probably! At the age of 43 he has an Elo rating of 2589 and is ranked 7th in Germany and 142 in the world (as of January 1st 2004). According to this author, this is mainly due to his peaceful nature and lowered ambitions; Yusupov is still a very strong player. During the testing Yusupov was calm and focused, scratching his legendary big red beard, mumbling out phrases in Eng- lish, often with Russian syntax. His atti- tude towards the test was generally very relaxed and full of adventure. ‘I no longer consider myself a professional player,’ he would say. T no longer do any training and I am no longer in top shape.’ To the fact that he had recently departed from FIDE’s top 100 list, he exclaimed: What a relief! Now I no longer have to worry about such silly things as rating.’ Testing Yusupov was a very pleasant experience, except for a most unfortu- nate feature: during the fourth test posi- tion the microphone broke. The failure to the microphone was minor, but suffi- cient to ruin the taping. This was only discovered some days after the test had finished and the poor writer had few choices at his disposal: One was to completely disregard the participation of this, the most famous of participants. Definitely not fair to the readers, though it would save the au- thor’s face. Another was to rearrange the test, hypnotise the German grandmaster and make him lose all recollection of the po- sitions and do the test all over. Unfortu- nately the writer did not possess the abilities required for this Harry Potter
solution, nor the owl-number of Harry Potter himself. So he was left with: The third and only option. When the mistake was discovered the writer had a complete fit and threw his laptop out the window. A few minutes down the line, when no improvement to the situation had been detected, the writer did the only possible thing. He sat down and reconstructed Yusupov’s answers and thoughts to the best of his ability. The writer of this book would like to express his deepest regrets to the readers for the absence of a complete account of the testing of Grandmaster Yusupov. I hope that the book will not lose gready in overall value from this obvious flaw. On the way I would like to thank God for yet another sublime lesson in humil- ity. If you continue this way 1 am sure very small things are in store for me in- deed. The game I have chosen to present Yusupov is one he himself considered to be his best ever. Y usupov-Sokolov Moscow Championships 1988 Catalan Opening 1 d4 Of6 2 c4 e6 3 g3 d5 4 ±g2 dxc4 5 2>f3 c5 6 0-0 &c6 7 vie5 ±d7 Sokolov played this line all the time against the Catalan in the 80’s. 8 £lxc4l? Not the main choice at the time; 8 $3a3 was more mainstream. 8...cxd4 9 i.f4 v^d5 10 v^d6+ £xd6 11 Axd6 Cide7 12 2>d2 0-0 13 Wb3 Дс8 A new move at the time. 14 vic4 2e8 In Informant 46 Yusupov gives 14...£ia5 15 JLxe7 43xb3 16 JLxd8 <23xal 17 JLe7 as clearly better for White, but after 17...£3c2 this is not so clear, as White cannot play 18 Scl?? because of 18...d3! and Black is much better. After 18 £3d6 White would still keep the ad- vantage though. 15Sfd1 2rf5 16&C5 e5 Black is trying to cling on to the extra pawn — his excuse for giving away the two bishops. 16...Wf6 is brutally met by 17 g4! £ih4 18 JLxc6! and Black is very weak on the dark squares and might be about to lose material. 17 e4! A wonderful positional decision. Black is allowed to have a passed pawn, but White has the initiative and the two bishops, and therefore also the advan- tage. 17...£rfe7 The alternative was 17...^3h6 18 £k!6 Se6 19 ^3xc8 Sxc8 20 JLh3 “53a5 21 Wd5 and White wins the exchange. The endgame is only slightly better for him, but in practice this might prove to be
torture for Black. 18^d6 2f8 19&xb7 This is not about winning a pawn, as it does not do so, but about eliminating the black bishop. 19...ДхЬ7 19...Wc7!? was probably better here. 20 Wxb7 Hb8 21 Wa6! After 21 ±xc7 &xe7 22 Wxa7 Yusu- pov gives 22...Wd6! and Black has good counterplay along the open files and against the ill-placed white queen. In our time and age Frit% 8 thinks the position is simply equal. 21...Hxb2 22 Wa4!? Wb8?! Yusupov thinks that 22...Wc8 is bet- ter, but after 23 JLa3 he likes the com- pensation given to him by his two bish- ops and the better coordination. 23 Af 1! The second bishop is brought into play. 23..Л 5!? 24 ka3 Sb6 24...fxe4? 25 £xb2 Wxb2 26 Wb3+ and Black will have a difficult endgame. 25 exf5 |ЙЬ4 25...flxf5 26 Sacl was the alternative (preferable according to Yusupov), but White is much better here as well. 26 Sabi! ^ec6? After this White is able to organise a strong attack. Necessary was 26...‘?3ed5 when Yusupov was intending 27 JLc4 &h8 28 kxb4 ДхЬ4 29 ДхЬ4 Wxb4 30 Wxb4 with excellent winning chances in the endgame. White has a superior bishop against knight and the black king has difficulties getting into the game. 27 kg 2 Sd8 27... Uc8 28 kxb4 ^xb4 29 a3 £k6 30 Sxb6 Wxb6 31 flcl and White wins material. 28 кхсб! ^xc6 29 Sxb6 Wxb6 30 Wc4+ kh8 31 Wf7! With the threats 32 Jlf8 and 32 f6. 31...Sg8 Forced, if 31...&b4 32 £6! Sg8 33 fxg7+ 2xg7 34 Wf8+ and White wins a piece. 32 f6 Wd8 33 ke7! With the idea 34 fxg7+ and 35 kf6. 33...£>xe7 34 fxe7 Wd7 35 Sd3! With the idea 36 Sf3 and 37 Wxg8+ winning. 35...h6 35...e4 36 Sxd4! Wxd4 37 Wxg8+ ^xg8 38 e8W mate. 36 Ef3 Sc8
This attempt at counterplay is futile, probably the product of time trouble. 37 Wf8+ *h7 38 Hf7 Пс1 + 39 *g2 Wc6+ 40 ФЬЗ We6+ 41 £>h4 1-0 Grandmaster Peter Heine Nielsen Peter is a 30-year-old grandmaster, born May 1973, living in Aarhus, Denmark. He is currendy Scandinavia’s number one by a narrow margin, but will soon lose this position due to a few bad re- sults. But that he belongs to the absolute top here is beyond question. He is well known for his preparation and for his great physical size: 1 metre and 98 cm in height he is a true tower, terribly intimi- dating when he leans over the board. His best result so far was to win the North Sea Cup in Esbjerg 2001 together with Peter Svidler, but I am sure that even greater things will happen to him over the years. His Elo at the time of writing is 2638, but as said he will lose a few points on the next list. Outside of tournament life he is sin- gle, at times a history student, and also the joint author of The Accelerated Dragon with Carsten Hansen (Batsford 1998). During the test Peter had a few prob- lems concentrating but, as he said, these kind of exercises are not the natural play- ing field for him, which also explains some of his mistakes. He sees himself more as a intuitive player. Here is a very attractive game from him, in which he beat the Bulgarian no.2. Nielsen-Kir.Georgiev Istanbul Olympiad 2000 Semi-Slav Defence 1 d4 2>f6 2 2>f3 d5 3 c4 c6 4 £c3 e6 5 JLg5 h6 6 JLh4 dxc4 7 e4 g5 8 £g3 b5 9 Jke2 ДЬ7 10 h4 g4 11 Cie5 h5 12 0-0&fd7?! Certainly an invitation. Peter’s first thought was: is this really possible? His answer to this question was: probably not. 13&xf7!! With this sacrifice White opens the black king’s position for a perpetually ongoing attack. 13...*xf7 14 f3 &g8 14...gxf3 was played in another game, but did not help Black much. 15 fxg4 e5 16 g5! Peter Heine explains: The idea is to take on h5 with bishop, as well as con- trolling f6, making sure Black’s knights will have their problems protecting their king.’ 16 gxh5 was also dangerous for Black. 16...exd4 16...We8!? was maybe better, but after 17 d5 Peter thinks that the white attack is very dangerous. An important point here is that it is hard for Black to develop the queenside, as the pieces seem to be in each other’s way. 17 £xh5 Sh7 White’s attack is very strong. The following line given by Peter shows how
lowing line given by Peter shows how dangerous the attack is. 17...dxc3 18 &f7+ &g7 19 Wd4+ £if6 20 Wxc3 ФхГ7 21 Hxf6+ &g8 22 Sg6+ ФЬ7 23 Wf3 and White wins. 18£g6 We7 Against 18...Sg7 the German grand- master Christopher Lutz gives the fol- lowing winning line 19 Wh5 We7 20 Hf3! dxc3 21 Safi when Black has no defence. He might in principle be two pieces up, but he has 3 or 4 pieces out of play, so White has more pieces where it counts; e.g. 21...We6 22 i.f7+ Sxf7 23 Sxf7 JLg7 24 g6 and White wins. 19 JLd6! A wonderful shot that increases the pressure with gain of tempo. 19...Wg7 19..>xd6 loses to 20 Axh7+ &xh7 21 Wh5+ &g8 22 g6 We7 23 Sf7 and it seems like it is all over. A computer might come up with 23...£3f6 24 Sxf6 $М7 25 Ef7 £)f6 26 Sxf6 dxc3 27 e5 cxb2 28 Safi and White wins with 29 Sf7. 20 £xh7+ Wxh7 21 Wg4! After destroying the black pawn struc- ture on the light squares, White can enter as he pleases. 21...Wg6 21...Axd6 22 We6+ ФЬ8 23 Sf7 and White wins. 22 £xf8 Cie5 Black cannot save the position. After 22...SW8 White wins in the following way: 23 Sxf8+ Фх!8 24 Hfl+ Фс7 25 Hf6 Wg8 26 Wf4 2kl7 27 Wd6+ &d8 28 e5 Фс8 29 fl£2 dxc3 30 e6 cxb2 31 Wxd7+ ФЬ8 32 Wd6+ Фс8 33 e7 blW+ 34 ФЬ2 and wins (Nielsen). 23 Wh3 61bd7 24 Ae7 Se8 Black accepts simply being material down as well as under attack. But then 24...dxc3 25 h5 We8 26 We6+ ФЬ7 27 Wh6+ ^g8 28 JLf6 and Black is toast. 25 h5 Wg7 26 Af6 £xf6 27 gxf6 Wf7 28 Sf5 <£>h7 29 Wg3 dxc3 30 Hxe5 cxb2 31 Sf1 3xe5 32 Wxe5 jlc8 33 Wxb2 Деб 34 We5 b4 35 ZH3 c3 36 Zg3 c2 37 Wf4 clW+ 38 Wxc1 Wxh5 39 Sg5 Wh4 40 g3 Wh3 41 Пд7+ &h8 42 Wg5 1-0 International Master Jesper Hall Chess writer, teacher and player. 32 years old. Elo 2487. Currendy working on both chess books and a children’s book. From Lund in Sweden, but has recently purchased a house in the countryside with his wife, with whom he has a baby daughter. Hall-Sadler German Bundesliga 2002 Саго-Капп Defence 1 e4 c6 2 <йсЗ d5 3 This is a less standard variation, which suits the non-theoretical and non- standard Hall well. З...Дд4 4 h3 Axf3 5 Wxf3 ^f6 6 d3
e6 7 jcd2 £bd7 8 g4 b51? Many moves have been played here. 9 g5 b4 10 4ld1 2ig8 11 £ie3 11 d4 with a slight edge was also pos- sible. 11...±d6 12 h4 <^e7 13 h5 Hb8 14 Wg2 Де5 15 2Ы 15 0-0-0?? would bring the white king into a true thunderstorm, as the majority of the white pieces are aimed at the king- side. Black would have a winning attack after 15...Wa5!. 15...Wc7 15...JLc3! (Lukacs) was stronger, in order to rid White of the two bishops. 16 Ae2 a5 17Hh4 Sb6?l This looks very artificial. Better 17...a4!? with unclear play (Lukacs). 18 Wh3 ФсЗ! 19 g6 hxg6 20 hxg6 2xh4 21 gxf7+ &xf7 White is always better now. He has fewer pawns islands, and Black will suf- fer from the weakness of the g-pawn for a very long time. Theoretically that is. In the game he just loses that pawn without much resistance. 22 Wxh4 2)f6 23 ЬхсЗ bxc3 24 Sxb6 cxd2+ 25 <&xd2 Wxb6 26 e5! White starts his attack on the black king. 26...2id7 27 JLh5+ g6 28 £xg6+! This tactic decides the game. 28...^xg6 29 Wh7+ &f8 30 Wxg6 Wb4+ 31 Фе2 Фе7 32 Wg7+ &d8 33 Wg8+ Фе 7 34 Wg5+ Фе8 35 £>g4 Wc3 36 *d1 Wd4 37 £tf6+ 2ixf6 38 Wxf6 Wg4+ 39 &d2 c5 40 a3 a4 41 f3 Wg8 42 ФсЗ &d7 43 Wf4 d4+ 44 &d2 Феб 45 We4+ ФЬ6 46 Wg4 Wf7 47 f4 ФЬ5 48 Фе2 Wb7 49 Wf3 Wh7 50 Фd2 ФЬ6 51 Фс1 Wh4 52 We4 Wf2 53 ФЬ2 Wd2 54 Wg6 Wc3+ 55 ФЬ1 Wxa3 56 Wxe6+ Фс7 57 Wc4 Wb4+ 58 Фа2 Фd7 59 f5 a3 60 Wb3 1-0 Dr. Ivo Timmermans Ivo Timmermans is a medical doctor from Maastricht, Holland. He was bom famously on April 1st 1960. When his parents sent a telegram to his grandpar- ents, they replied, ‘Ha ha, very funny.’ For the last 12 years Ivo has worked as drug researcher for different biotech companies. He is single and with no children is not responsible for overpopu- lating the planet. His highest ever Elo was 2295. In the past few years he has circled around
2200, but recently he has improved somewhat and now has 2237 Flo. Uis playing level varies much from day to day: one day he can beat two strong IMs, as indeed happened at Santa Domingo 2003, and the next he can lose like a child. 1 lis best result is probably Gronin- gen Open 1997, a 2400 performance where he had a game for the IM norm. He was also ghost writer and assistant for Xie Jun’s autobiography Chess Cham- pion from China (Gambit 1998), which comes highly recommended. (Of his other achievements it could be mentioned that Ivo has twice completed an Ironman triathlon (swim 2.4 miles, bike 112 miles, then run a marathon), has run a marathon in just over 3 hours, has a helicopter licence and a brilliant sense of humour. The following game jusdy makes him proud. Timmermans-Hennigan Boca Chica 2003 Sicilian Defence 'fhis is the second game in a double round in Santa Domingo. In the morn- ing Ivo had won against Rene Stern, a very strong German IM, with Black in only 25 moves. Here, in the afternoon, he proved to himself that it was no coincidence. 1 e4 c5 2 £f3 £c6 3 d4 cxd4 4 £xd4 £f6 5 £c3 d6 6 Дд5 еб 7 Id2 аб 8 0-0-0 &d7 9 f4 kel 10 £f3 Ь5 11 Ji.xf6 gxf6 12 ФЫ b4?l 12...Wb6 is considered more solid. 13£e2 Wb6 14 f5 e5 This is considered forced. The threat of White’s last move is to play as follows: 14...a5 15 £lf4 Wc5 16 fxe6 fxe6 17 g3 2a7 18 JLh3 and the light squares in the black camp are under heavy fire (Radu- lov-Padevskij, Bulgaria 1975). 15 Wh6 £a7 This is a new idea and though it looks dubious, it might be the entire line which is to blame. A previous game continued 15...0-0-0 16 £)g3 £a5 17 £h5 £c6 (Yeo-I lennigan, Swansea 1995), and now White could have gained a clear advan- tage with 18 £xf6! because of 18...JLxf6 19 Wxf6 JLxe4 20 £3xe5! and White is winning. 16£g3 Ivo correcdy targets the black camp where it is weakest. First he develops, then he strikes. 16...£b5 17 Дс4 Wc5 18 ДЬЗ a5 19 £h5 Sf8 19...a4 20 JLxf7+! &d8 21 &xf6 and White is winning. 20 £g5!! '1Ъе only inactive minor piece is brought into the game. If White had played with less imagination the game would probably have ended with a draw: 20 £)xf6+ £xf6 21 Wxf6 a4 22 ±d5 Hc8 23 £)g5 (23 Scl? a3 24 £)g5 axb2
and Black even wins) 23...£>a3+ 24 ЬхаЗ Wxc2+ with perpetual check to come. 2O...fxg5 Black is also worse after 2O...a4 21 &g7+ &d8 22 £ixf7+ Фс7 23 £)e6+ JLxe6 24 JLxe6 a3 25 JZd5 Wc6 26 Exb5! Wxb5 27 Wxh7 and White has managed to protect his king and win some pawns. Black’s fragile king and his inability to activate his rooks gives him a bleak fu- ture. 21 f6 Феб 21... JLd8 22 <?3g7 mate. 22 fxe7 Фхе7 23 #xg5+ id7 24 <2rf6+ Фс8? Better was 24...Фс7 when White needs to find 25 Wg7! (25 <21x117 Hg8 26 We7+ Ф>Ь6 27 Wxf7 Sxg2 28 £)f6 a4 29 JLc4 <21d4 is not clear) 25...£kl4 26 Hd2 with a clear advantage. 25 Wf5+ Фс7 26 2)xh7 a4 27 <^xf8! Everything has been calculated very accurately. 27...axb3 27...Hxf8 28 £d5 <?Ш 29 Wf2 and White is technically winning. 28 Wxf7+ ФЬб 29 axb3! Again a matter of accuracy. After 29 cxb3? White loses to 29...JLxe4+ 30 Фа1 Hxa2+! 31 Фха2 <51c3+ 32 bxc3 Wa5+ 33 ФЬ2 Wa3 mate. 29...£ld4 29...£1c3+ looks tempting, but White wins with 30 bxc3 Wxc3 (3O...bxc3 31 Wc7+ Фхс7 32 <51e6+ ФЬб 33 <2fxc5 and it is all over) 31 £ld7+ JLxd7 32 Hxd6+ JLc6 33 Дхс6+ Wxc6 34 Hfl and Black has no chance. 30 Sxd4! exd4 3O...Wxd4 31 21e6 Wxe4 32 Wc7+ ФЬ5 33 Wxd6 and White wins. 31 £ie6 The start of a brilliant cooperation be- tween the knight and the queen. 31...We5 32 Wc7+ ФЬ5 33 2)d8 Фхе4 34 7! It is beautiful, don’t you think? 34...Wd5 35 2>xd6+ Фаб 36 2>xe4 Wxe4 37 Wc4+ Фа5 38 Wc5+ Фаб 39 Hfl 1-0 Tom Skovgaard Residence: Skovlunde, Denmark Bom month and year: February 1951 Profession: IT consultant Height: 1.78m Family status: Married, 4 children Highest Elo rating ever: 2076 (current) Best result: No. 1 with 4’/г/5 in ‘Sydkys- ten’, October 1998 (performance rating 2384; average of the opponents’ rating 2020) Skovgaard-Mortensen Danish Primary League 1972 Sicilian Defence 1 e4 c5 2 <51f3 e6 3 d4 cxd4 4 £>xd4 a6 5 id3 ftc6 6 ФеЗ Wc7 7 0-0 2)f6 8 2ib3 Фв7 9 <2>c3 b5 10 a3 0-0 11 f4 d6 12 Wf3 ФЬ7 13 Wh3 e5 14
f5 14 £k!5 is a more obvious choice, but as the text move turns out to work well, there are no reasons for complaints. 14...£id8?! This does not seem like the most natural move., but still it is not the rea- son for Black’s downfall. Still it was more natural to play something like 14...£3a5!? with chances for both sides. 15 g4 h6 16 Sae 1 16 g5!? is more thematic, opening lines on the kingside. 16...2ic6? After this Black has simply wasted two tempi. Necessary was 16...d5! with the idea 17 exd5 JLxa3!? and the position remains complicated, even though White is to be preferred. 17 Sf3 Sad8 18i.xh6! White is ready to begin his attack. No piece could be improved upon. 18...2)d4 The only move. If 18...gxh6 19 Wxh6 ^3h7 20 Hh3 JLh4 21 f6! leads to mate. 19 Sg3 d5 White has a winning attack after 19...^xb3 20 g5 £le8 21 ±xg7! £ixg7 22 g6 fxg6 23 fxg6 JLh4 24 Wxh4 ^3e6 25 £ki5 JLxd5 26 exd5 and Black has all the problems one could possibly invent for him. 20 g5! White does not hesitate. 20...£>h7 The win against 20...£3e8 is less obvi- ous, but still to be found: 21 f6! £lxb3 22 JLxg7! <53xg7 23 exd5 Ac5+ 24 ФЬ1 and Black is soon to be mated. 21 Дхд7! Wb6 21...<&xg7 22 f6+ and White wins. 22 <£>h1 22 “53xd4 was perhaps slightly more accurate. 22...dxe4 23 2>xe4 i_c8 23...&xg7 24 f6+ JLxf6 25 gxf6+ ФЬ8 26 Sg7 still mates. 24 £xe5 2ixf5 24...£ixb3 25 Wxh7+! ФхЬ7 26 Hh3+- and Black is mated. 25 2>f6+ jLxf6 26 gxf6+ &h8 27 _£_xf5 White has won a piece and the attack continues. 27...£xf5 28 Wxf5 Wc6+ 29 We4 #c8 30 Пд4 Hg8 31 Hh4 Hg6 32 Wxg6! A nice way to end the show. 32...fxg6 33 f7 mate
Peter Skovgaard Peter lives with his family in Skovlunde, Denmark, which obviously includes his father Tom. He was bom in April 1990 and still attends school. (In Denmark we have a system of 1st to 9th grade of compulsory schooling.) He is a slender boy of normal build (1 metre and 67 cm tall) with a pleasant mood. He is into computer games, sports and other usual teenage activities. His Elo has been circling 2050 for some time. It is my impression that he is very talented, but raw talent is only an opportunity. He is a generally talented boy, likely to find happiness in whatever endeavour he pursuits. During the test Peter was focused and relaxed, not at all intimidated. I attach this to his general easy-going character, and not to the fact that we know each other. Occasional lapses in concentration are bound to happen to 13-year-olds, and did to Peter. Still, his overall per- formance left a positive impression. His best result by far is the 2003 Nor- dic championship in his age group. The Nordic countries include Denmark, Nor- way, Sweden, Finland, Iceland and the Danish self-ruling colony, the Faeroe Islands. He won this event with Wi/6 in a convincing fashion, even though he occasionally was in trouble. When I asked him to present a game for this book, he chose the following swift kill. Skovgaard-Olsen Lyngby 2003 Modem Defence (Express notes by P. Skovgaard) 1 e4 c6 2 d4 g6 3 2ic3 d5 4 &f3 J*.g4 5 ДеЗ Дд7 6 h3 £xf3 7 Wxf3 e6 8 £d3 9 Sd1l? f5!? 10 e5 0-0 11 2)e2! 'Fhe knight is going to f4. The e6- pawn is weak. 11. ..b5 ll...c5 12 c3. 12£if4 Wd7 13 «дЗ! ...g6-g5 is prevented and the attack on the king initiated. 13...£la6 14 h4 £ib4 15 h5 *f7 16 hxg6+ hxg6 Now comes the winning attacking move... 17 i.xf5!! The bishop can be captured by three pieces, but all these moves lose. 17...^xf5 If 17...gxf5 18 Sh7 Hg8 19 Wi5 £lg6 20 £h6!. 18 Wxg6+ Фе7 IS.-.'&gS also does not last: 19 £\xe6 £3xe3 (19...Sf7 20 Wh7 mate or 19...£)xc2+ 20 <£>d2) 20 Wh7+ &f7 21 Wxg7+ Фхеб 22 Sh6+ and so on... 19 g4 The exact continuation. 19...2>xc2+ 20 &d2 £)fxd4 21 Wxg7+ Sf7 21...Фе8 22 Wxd7+ &xd7 23 Sh7+
&e8 24Scl! and Black loses material. 22 <5ig6+ <^d8 23Wg8+! 1-0 Black resigned as the rook on a8 is lost. Sidsel Heeg Sidsel is 23 years old, a student of politi- cal science, living in the heart of Copen- hagen, with a penthouse view over the city from her student flat (allegedly). Her best results as a chess player have been winning her groups at the North Sea Cup in 2002 with 6/7 and in her club Bronshoj with 772/9 in 2000. Her high- est rating has been 1535, but recently she has dropped to the area around 1400. As national ratings are different from coun- try' to country, this probably does not say so much. It would be higher in the US, lower in Australia and probably about the same in the UK. She has not yet settled down nor pro- duced future world champions of her own. Sidsel deviates from the other partici- pants first and foremost by being the only female player involved in the test- ing. Also, she is the most calm by far. This showed in her approach to talking into the microphone. Often she would say nothing for 45 seconds or so, keep- ing parts of her thought process to her- self. As this was the natural way for her to do her part of the test, I did press her to talk more than she did. When she spoke, it was open and direct, and the final result gives a good image of her thought process excellendy all the same. The following game is a good repre- sentation for Sidsel as a chess player. Bloom-Heeg Hastings 2002/03 Sicilian Defence 1 e4 c5 2 c3 d6 3 d4 cxd4 4 cxd4 £>f6 5 2>c3 e6 6 £>f3 a6 7 a4 &e7 8 i.d3 0-0 9 0-0 Wc7 White has emerged from the opening with a slight edge, but in the coming middlegame struggle he is not able to keep up the pressure. 10 £d2 2>c6 11 d5 exd5 12 £)xd5 £>xd5 13 exd5 14 5ixe5 dxe5 15Sc1 Wd6 16£c3 £d7! Though the e-pawn is indirccdy threatened, Sidsel concentrates on her development. 17 Wh5?! h6?
After this White has strong pressure. 17...f5 would give Black full equality. 18 ЬЗ?! White misses 18 Wxe5 Wxe5 19 JLxc5 jLxd7 20 Hc7 with a strong position. 18... Wxd5?! This is probably too risky. 18...JLg5! would have solved all problems immedi- ately. 19 &c4 Wc6 20 £xe5 Wb6 21 £c7 21 Hfdl!? with the idea 21,..Had8 22 JLc7! and White wins. 21...Wf6 22 Hid 1 22 JLd5 looks strong here. 22... £c6! Black is out of the worst problems with this move. 23 Ad5 Wg5l? 24 Wf3 24 Wxg5 JLxg5 25 f4 JLxd5 26 Hxd5 Af6 27 Hd7 would have kept up the pressure. 24...Hac8! Again Sidsel is highly aware of the im- portance of bringing her pieces into ac- tion. 25 Af4? This is a miscalculation. Sidsel now wins the game with ice cool clarity. 25...£xd5! 26 £xg5 Jkxf3 27 £xe7 _*.xd1 White probably overlooked that 28 Дх f8 Sxcl loses the game. 28 Hxd1 Sfe8 Now we enter a purely technical phase. 29 &b4 3e2 30 &11 Hcc2 31 &e1 He7 32 a5 Hec7 33 b4 Hcl! The exchange of a pair of rooks pre- vents all counterplay. 34 Hxc1 Hxc1 35 &e2 *f8 36 l_d2 Hc6 37 ДеЗ h5 38 &d3 g6 39 £c5+ Фе8 40 *c4 &d7 41 £>d5 Hf6 42 g3 Hf5+ 43 Фс4 Феб 44 h4 f6 45 &d3 Hxc5 0-1 Sten Vesterli Sten Vesterli is a 37-year-old IT- consultant from Haraskovby in Den- mark. He has been invited to participate in this experiment because he only re- cently started to play chess in a chess club. He did so at the same time as his 9- year-old son, who won the F-group in the Danish children championships shortly before the testing. Sten is married and has no results nor any recollection of any great games from his career. I would like to thank him immensely for participating in this project. It was very important to me that an intelligent adult with little experience in chess should share his thoughts, so that we would have a sound basis to compare with the more accomplished players. One thing that I have changed in his answers is recurring problems with the terminology and problems with naming the right squares. Often the g5-square became f5, £3 became c6 and so on. All of this was obviously caused by a chess board without letters and numbers at the sides.
Fritz 8, Test Version 15 The test of Fritz 8, test version 15 took place in the summer of 2003 in Ham- burg on an office computer at the Chess- Base offices. Programmer Mathias Feist was assisting, and interpreting Fritfs thoughts for me, while explaining about the recent areas of focus in the pro- gramming of Fritz- The computer used was a 2.2 GHz Pentium 4 with 512 RAM, though the program only used 144. Mathias explained that the computer program would often analyse the primary candidates and come to solid conclu- sions, and then still go through all other moves at the same depth, just in case, before executing a move. Fritz was calm and focused all the way through the test, and never once blinked nor showed any sign of indecision. It solved the calculation exercises bril- liantly, as expected, though there was one great surprise to the author. Also, it showed the weaknesses which could have been predicted, even though here it also surprised a little by being the only test’person’ to solve a certain positional exercise. When I told Mathias that I had the feeling that the recent commercial ver- sion of Fritz had a much higher respect for dynamic features, a big wide smile broke out on his face. ‘Yes,’ he said. We worked a lot on this. It is playing chess now, not just counting pieces. It took some time to come around to it, as it is obviously much harder to evaluate dy- namic features than it is to simply count material.’ Before the match with Kram- nik they worked a lot on positional evaluation. He also explained that when Fritz gives a move T it does not mean that it is a strong move, but simply that the com- puter has changed its main line. One thing that made a clear impres- sion on me at the time, was that Mathias Feist would also try to work out the po- sitions by himself. At the time I believed that this guy simply loves chess (which he obviously does), but later it dawned on me, that this is actually a truly profes- sional approach. In order to check on the program, he has learned to con- stantly use his own thinking abilities, just in the way that I use the program to check on my own ideas for obvious blunders. This could very well be a good lesson to everyone who has too much faith in silicon monsters (a modem su- perstition of sorts), and who have ever uttered the sentence: Well, Fritz said 1 was slighdy better...’ Because, as Mathias explained to me,’the important thing to us is not so much to get the evaluation right, but for Fritz to find the best move.’ The most famous game Fritz has played is the following controversial win against the classical World Champion in 2002. A match that also gave Fritz ^ts best result to date, a 4-4 result against the strongest match player in the world. Kramnik-Deep Fritz Bahrain 2002 Queen’s Indian Defence Deep Fritz basically means that the hardware is a multiprocessor computer. This increases the search depth. The ver- sion of Fritz that played this game was later released as Fritz $
1 d4 2if6 2 c4 e6 3 £if3 b6 4 g3 Даб 5 ЬЗ ДЬ4+ 6 Дс12 Де7 7 Дд2 сб 8 ДсЗ d5 9 2ie5 £>fd7 10 £ixd7 £lxd7 11 <51d2 0-0 12 0-0 Пс8 13 a4 This is a less than usual move, trying to get out of its enormous openings library. 13...if6 14e4c5 Both players are in for a real fight. 15 exd5 cxd4 16 Ab4 Ze8 16...£)c5 is probably sounder and a more human choice. 17 £ie4 exd5 18 £id6 dxc4 Frit^ of course has no real qualms about sacrificing the exchange. The days when computers defended all threatened pieces are over. 19 2>xf7? Kramnik later stated that he simply could not resist the temptation to play this move, seeing a plenitude of beautiful variations. The move he overlooked (not an issue for Fn'Aj of course) is given be- low. Probably the game should have continued something like 19 Дс15 £k5 20 JLxf7+ (20 £3xe8 Wxd5 21 41xf6+ gxf6 22 bxc4 Wxc4 is even according to Frify though I think few humans would like to be White here) 20...Ф£8 21 Дхе8 Wxd6 22 Д.Ь5 with a very complicated game slighdy better for White, according to Frit^. 19...&xf7 20 £d5+ Фдб 21 Wg4+ Дд5 22 Де4+ Sxe4 23 Wxe4+ &h6 24 h4 24...Д16 Kramnik was probably focusing on lines like 24...c3 25 hxg5+ ^xg5 26 ^g2! £xfl+ 27 Hxfl g6 28 Wxd4 £)f6 29 Axc3 Wd5+ 30 Wxd5 ^3xd5 31 JZhl+ “^g5 32 JLd2+ ФЬ5 33 Sxh7 with a pref- erable endgame (0.72) according to Frit^ after 30 seconds. 25 id2+ g5 Around here the horror of what he had done must have started to get to Kramnik. But there is no way back once you have sacrificed on f7. This is truly
the magic of Mikhail Tai defeated by German industrial coolness. 26 hxg5+ After 26 bxc4 <?ic5 27 hxg5+ JLxg5 28 Wh4+ ^?g6 29 JLxg5 Wxg5 30 Wxd4 Hd8 31 Wc3 2>e4 32 Wc2 Wf5 Black wins because of the different threats like ...£lxg3 and ...Ef2. One line is 33 Eadl JLxdl 34 Exdl JLxc4! and Black has a winning endgame. Still, 1 suspect that Kramnik would have had some chances of creating counterplay in lines like 35 Ed8 JLe6 36 Ea8 41xg3 37 Wxf5+ £)xf5 38 Exa7 JLb3 39 Sa6 and though Black might win with his passed h-pawn, it is by no means easy business. 26..JLxg5 27 Wh4+ Kramnik later explained that he had overlooked the following line 27 We6+ 28 f4 word starting buzzing around the Inter- net, that Kramnik could have made a draw. The right way for White is: 35 Hxa6 b2 36 Ea7+! Фдб 37 Sd7 Ec1 38 Ed6+!l Now Black has no choice but to put the knight in between sooner or later, as it is either a perpetual check or a loss with Hxd5+. 38...6 39 Sdd1 blW 40 fixci This position is winning for Black, but not the way that Frit^ wants to play it. 4O...Wf5 41 Ec6 b5 42 Еееб b4 Otherwise the pawn ending is drawn. 43 Hb6 &f7 44 3xf6+! Wxf6 45 Sxb4 28...JLh4!'. The only move, but good enough to decide the game. Even though White is an exchange up after something like 29 Wh3, Black will win easily with 29...c3. 27...&g6 28 We4+ &g7 29 £xg5 txg5 30 Hfel cxb3 31 Wxd4+ Of6 32 a5 Wd5 33 Wxd5 ^xd5 34 axb6 axb6 0-1 Here Kramnik resigned, but soon the
and with the rook interposing between f4 and h4, White is able to make a draw. This is a fortress, a thing a computer is not built to understand, as the advantage never expires for Black. But then of course humans have bad programming too. Kramnik never even speculated about this... About this position Mathias said: “This is of course horrible! The problem with chess is that there are more exceptions than rules, so it is a terribly difficult thing to program!’. Many humans have loved to look for these exceptions and feed them into the computers. Tim Krabbe writes on his homepage that computers cannot be said to be playing chess before they can find the text move in two posi- tions. The first is the famous blunder of the queen by Petrosian, the second is the following study. J. HaSek 1951 1 ^g4+l! This move the computer cannot find by itself. But it is also the only move in the exercise that it cannot find. 1... hxg4 2d4+ i453Sh1! This defensive idea comes quickly to the computer, but that it is anything else than a temporary fix is not apparent to it. 3... Wf8 4&e1 Wa8 5*f1 - 5.53 is Fritzs stable evaluation here. 5...Wa6+ Only here Frit^ realises it cannot win. 6 &g1 The solution is: and either White is stalemated or Black will have to give up the idea of penetrating with the queen. I do not think you should be waiting impatiently for computers to blunder queens in the future, but if you think they will not one day be able to solve these kinds of puzzles, I fear that you might be wrong. With these words of introduction, let us now proceed to the tests themselves!
CHAPTER THREE Test Position 1 Test Position 1 White to move. Take 5 minutes to find the strongest continuation, talking into a microphone or writing down your thoughts afterwards. The first test position is taken from the game Finn Norh-Michael Nielsen, Denmark 2002. If you have not yet tried to solve it by yourself, I recommend you to do so. Below you will find the moves and explanations found by the chess players kind enough to participate in this project. The solutions are ordered ac- cording to how well the test subject did, with the answer furthest from the solu- tion first, and so on. Apologies are of- fered to those mentioned first, but we will hold the readers of this book in high regard, and assume that they do not mis- take taking the wrong turn in a chess position for anything else than exactly that. Sten Vesterli ‘Well. White has a far advanced pawn, threatened twice, defended once. If I want to keep the pawn I will have to do something. It is on a dark square. Hmm. I have the two bishops.’ “The black knight on f7 is pinned. It is threatened twice and defended twice. That means that if I attacked it, and thereby sacrificing my d-pawn ... Maybe with 1 £ig5. This will force him to pro- tect f7. He cannot block the diagonal.’ ‘He has a very strange knight on b6. The c-file is open, but it does not seem that interested.’ ‘If I take on e7, then he will recapture with the queen. No, that makes little sense, as the rook on el is unprotected, not connected with Sal.’ ‘I am leaning on 1 £ig5. It is an extra
threat on f7 and at the same time it opens for the rook.’ ‘Ah, if he takes with the pawn, then he will also protect the knight. That would be a shame. No. The knight would be threatened three times then. No, the knight does not count. I am threatening with the bishop and the queen.’ ‘If I sacrifice my bishop on f7 for the knight, then I need something strong, as I am materially behind. Right now it is ok, as £ib6 does not contribute much.’ ‘1 do not think I can take on f7, as the queen is near by. So when exd6, then the queen will protect the knight as well.’ “Then the question is if I can protect my advanced pawn. Hmm. 1 JLf4.’ (pause) ‘It defends the pawn. He can- not play l...g5 to threaten my bishop, or can he? It will weaken his king’s position. If l...g5, then 2 £lxg5, then I lose my pawn. I will then have exchanged my pawn for his.’ ‘Oops, time up, I have to make a move.’ 1 JLf4. Jesper Hall The first thing I look at is the pawn on d6, I can say that it has come a bit for- ward, but on the other hand...’ ‘And then I can see that there is a pin on the knight on f7. White has got pres- sure with the queen on £3. The first thing I look at is the move 1 £ig5 in order to do something about it. I also thereby threaten to bring my rook from el to e7, putting even more pressure on this black knight. Black’s cramped pieces have dif- ficulties with defending f7. After 1 ^3g5 it is difficult to find a good move, one possibility is of course l...exd6 2 £>xf7 Sxf7 3 Wxf7+ Wxf7 4 He8+ &f8 5 £h6. Mmm.’ “But maybe then 5...JLe6 might possi- bly hold for Black.’ ‘So let us go through this variation again. 1 £ig5 exd6 2 ^3xf7 Sxf7. (pause) Of course White can always win the ex- change, oh, he is already a piece down. It is not that easy then. Hmm.’ ‘So. It is actually not that easy to prove compensation. But anyway White must do something quickly, so I believe that 1 £ig5 should be good anyway. How to get compensation?’ (pause) ‘1 £lg5 exd6 2 “53xf7 Sxf7 3 Wxf7+ Wxf7 4 Se8+ i.f8 5 Ah6 Деб. Hmm. 6 Sxe6 of course, but it does not look good. 6...JLxh6 7 He8+. No.’ ‘I am starting to look at 1 JLg5, is that a possibility? I...exd6 2 £)f6+ JLxf6 3
*xf6Wf5.’ ‘4 Hadi. No, I cannot really make it work.’ ‘Oh, my time is running low.’ Time up. ‘I think I would have tried 1 £ig5 in a game situation.’ Peter Skovgaard ‘Materially it is even, but White has strong pressure — weak pawn at e7 — and it is maybe possible to exploit this. Now I just have to work out how.’ “Maybe there is a double threat against e7 and something else. Maybe 1 £1c5, but maybe there is a defence. l...Wb5 maybe. 2 dxe7 Wxc5.’ ‘3 exf8W+ and if ..JtfxfB, then maybe I can play 4 JLg5. The queen is not so well placed on f8. But if he takes with the bishop, 3...JLxf8, then, well, there is 4 Wxf7+ with mate.’ “But maybe there are better moves in the beginning. Maybe l...Wc6, but I still have 2 dxe7, transposing to those previ- ous lines. So it looks promising.’ ‘1 ?3c5 Wxd6 2 ^3xb7 maybe.’ “But it might not be that beneficial. Maybe 1 £3c5 does not look so great anyway. Maybe 1 4±3g5 looks better. I...e6 is not so strong, 2 JLxe6. l...Wf5 maybe, no 2 JLxf7+ or maybe 2 dxe7 first. Yes, 2 dxe7 looks strong then.’ ‘1 £ig5 Wf5 2 dxe7 does not look good for Black. Maybe he has something better than 1...Wf5, as for instance l...We8 — no, that looks passive, and 2 dxe7 looks strong. So what else?’ ‘l...JLf6 maybe. Then 2 JLxf7+ Sxf7 3 <53xf7 ФхГ7’
‘and then 4 dxe7 and the position looks really good. And it does not look as if he has other options against 1 £>g5.’ Peter then executed 1 41g5, obviously without seeing l...exd6. Sidsel Ниед “The first thing I notice is the pin on the knight on f7, as a tactical feature, and the open e-file. And then the pawns — what to do about them?’ ‘How to exploit the light-squared di- agonal? And what to do against his con- trol over the dark-squared diagonal, which is irritating the white develop- ment.’ ‘Maybe 1 £lg5 in order to put more pressure on f7 somehow, or to take on e7 in order to open some lines some- how.’ ‘It is also an idea to take on e7 in or- der to develop the dark-squared bishop with a gain of tempo, and in this way negate the threat against b2 with 1 Ag5.’ ‘Unfortunately that is garbage.’ ‘No. It is actually possible. Then it is a real possibility, as the biggest problem for White is to finish his development. So to get the dark-squared bishop devel- oped seems to be the most important thing right now.’ 1 Time up! dxe7 Wxe7 2 £g5 Sidsel had missed that she had sacri- ficed a piece here, which of course is forgivable, as she was not in charge when it happened. Tom Skovgaard T start by counting the pieces. White has a pawn for a piece. Black has a weak king. There is a knight at f7 instead of a pawn, and there is a pin on the knight. White has a strong pawn on d6, a strong knight on e4. White’s rook on al is not active, but the rook on el is very active. There is pressure on e7. Let’s see some possible moves. Take on e7 maybe?’ What can Black do? He cannot move the king, it would lose the knight. There are threats in the e-file. Is there some- thing tactically? Maybe ^g5? No, it will be captured. Maybe ^Ac5 then, queen takes pawn and the attack reaches the end.’ ‘How can we use the pressure on e7? How can we use it.’ ‘Can we increase the pressure with a bishop move? Black’s knight cannot move. Maybe ^g5 with an extra threat to f7. However, Black can play ...e6 blocking the pin. So maybe we should
take on e7 first. Pawn takes, queen takes, &g5.’ “Nope! There is a mate on el. Pawn takes, queen takes, JLg5, possibly. And then when the queen moves a knight move. Maybe £)f6. Is there an attack after that? I am not sure. However, we have engaged our pieces in the attack.’ ‘Okay, a quick check of alternatives. There does not seem to be a combina- tion. But maybe just a bishop move straight away. JLf4 maybe. No. The at- tack will die — it seems. It looks as if tak- ing on e7 is right, as it opens for the bishop, and afterwards all my pieces will be attacking, and hopefully a combina- tionwill arise.’ “Elements after that. 1 dxe7 Wxe7 2 i.g5.’ “Where will he put his queen? Proba- bly back to the d-file. Or the c-file. Then the other rook will come into play, and 1 will play 41d6. 1 might win a knight there. I think I will win a knight there. I’ll try that.’ ‘I still have some time, so 1 will just check for alternatives. $Lef> maybe? Is that interesting. Queen takes. No, not interested.’ ‘I do not see other moves.’ 1 dxe7. Ivo Timmermans ‘Okay. Just starting with counting the material to see what is happening. White has sacrificed a piece. He has a pawn on d6 and a pin on the diagonal b3-g8. Black has problems with developing Ha8 and JLc8. “$3b6 is a bit awkward and Wd7 is worse. For White the problem is how to get Act and Hal into play. One idea is to go for a direct attack, which is for instance 1 £}g5, plus everything that fol- lows. Another idea is to play the attack a bit more slowly in order to bring all the pieces into play, which is developing the bishop on cl and then the rook on al.’ T^et us see what Black is threatening to play. Maybe he could try to play ...e6. And he could tty to take with the pawn on d6. So at least I should try to keep the pressure on.’ Tberc are a few candidate moves. One is 1 dxe7. Another is 1 ^3g5, going for the attack. Yet another could be de- veloping the bishop, 1 JLf4,1 JLg5.’ ‘I am just checking if there is any move I could have forgotten.’ ‘1 £1c5 is another alternative, even though it looks as if the knight is going to the wrong side.’ Candidate Moves
‘Ok, first 1 dxe7 Wxe7 then for in- stance 2 Ag5 with the threat of 3 £)f6+. Where does the queen go? Maybe 2...Wc7 then 3 Sacl. Maybe 2...Wb4. Yes, this is quite difficult.’ ‘2...Wc7 3 Had, so 2...Wb4 looks like the only move. You play 3 a3...’ ‘...and the queen has only a few squares, so this is a quite attractive move, 1 dxe7. Is there any other kind of coun- terplay you can think of?’ ‘Okay, 1 dxe7 Wxe7 2 JLg5 Wb4 3 a3. There are no threats on the white queen. So this is a promising continuation to start with. So White should have com- pensation, but still it is a full piece down. He can create further weaknesses for instance with the exchange of bishops with JLf6. He still has to work to get the attack going.’ ‘Let us look at the knight move.’ ‘1 ^3g5. The threat is possibly to take the piece back on f7, and one additional threat is of course Hxe7. Another threat is dxe7 straight away, winning back eve- rything.’ ‘So Black probably has just one move he can play, l...e5, and he can also play 1 ...exd6.’ ‘If he plays l...e5 I have to proceed. 2 JLe6 is one alternative. I am attacking f7 1-2-3 times, and it is defended only by the rook and the queen.’ Time up! ‘Five minutes already gone? So far I have only looked at 1 dxe7 and I have started to look at 1 ^g5.’ ‘I think 1 dxe7 looks promising.’ Artur Yusupov ‘Okay. I have sacrificed a piece for a pawn. The position looks interesting. Very interesting pieces.’ ‘Possibilities: 1 dxe7,1 £k5, 1 ^g5.’ Candidate Moves ‘Maybe I will start with 1 ^3g5. Let us say he plays l...exd6 2 ^xf7 he has some reactions: 2...d5 maybe. It looks like al- most the only move. Ok. 2...Hxf7 should be considered. 1 do not see any immedi- ate checkmates.’ ‘Of course it would be nice to retain the pin, so even 1 dxe7 Wxe7 2 JLg5 and maybe 3 £lf6+, which should be taken quite seriously. But there are some pos- sibilities. Taking on f7 is a little bit opti- mistic.’ ‘It should be possible to play even 1 JLh6 if then l...exd6 then 2 £)f6+.’ ‘I have a problem with speaking and
thinking. As a chess trainer I know that if you are speaking you should be thinking.’ ‘So what about 1 dxe7 Wxe7 2 Ag5. What can he play? There are two moves. 2.>c7 and 2...Wb4. 2...Wc7. I can even continue with 3 Had. I do not see any strong defence for him, so 2...Wb4 ... It looks very promising.’ “Even 3 a3 is good. If 3...Wa5 then 4 $3d6.’ “My time is running short! Hmm.’ If I have to play I will play 1 dxe7, but actually I have lost on time...’ Peter Heine Nielsen “Okay. You got the tape rolling? This is Peter Heine, it is live, it is raw and it is good!’ The first move you look at in this po- sition is 1 £3g5, or there are many moves. 1 dxe7 looks to be a move, while 1 *xf7+ looks like overriding the sys- tem.’ Hut let me calculate on 1 £lg5 first.’ ‘On 1 £lg5 then l...exd6 looks like a good idea. I cannot see any alternatives.’ ‘1 ^3g5 exd6, what then?’ ‘It does not look convincing to me. Hmm.’ ‘1 ^g5 and then after l...e5 then 2 Jle6 is probably strong. But l...exd6. 2...d5 is threatening, so 2 £lxf7 XLxf7. I cannot really see anything. 2 Jle6 instead of taking on f7.’ ‘Maybe then 2...Wc7 3 JLxf7+ Hxf7 4 He8+ Sf8. It does not look convincing. Ok, move on.’ ‘1 dxe7 is also pretty forcing, the only move is l...Wxe7. 2 ^3g5 would not be just a bit dubious. Л logical move is 2 .&g5.’ ‘How many squares does the queen have then. It looks to be c7 and d7. Iz:t us try 2...1йгс7 3 £lf6+ *i£?h8 4 £)e8.’ ‘I am not completely convinced.’ ‘Another move I would consider is 1 -fcg5, but maybe it is too much. On l...exd6 2 £lf6+ looks strong. What 1 would fear is probably l...e6 in order to cancel out the pin. Then 2 JLe7 is possi- ble, but 2...£kl5 looks good enough for
Black. Then I have 3 Axd5 exd5 4 ^3f6+ Axf6 5 Wxf6. It is not 100% convincing. But I do not see that any of the forcing moves wins for me.’ "There could also be a move like 1 Ah6 in this position.’ "With the idea of 1 ...JLxh6 2 dxe7, but if 1 Ah6 is really decisive is hard to say.’ Time up! 1 Ah 6 executed. Fritz 8 Mathias: ‘In this position Drii^ immedi- ately wants to play 1 Ah6. In the begin- ning it thinks Black is slighdy better, but with higher search it comes around and sees that White is winning with this move. It never considers other moves.’ 1 Ah6 Test Position 1 Proposed Solution Nehr-Mi.Nielsen Taastrup 2002 Sicilian Defence 1 e4 c5 2 c3 5¥6 3 e5 2id5 4 d4 cxd4 5 3 2>c6 6 Ac4 &b6 7 Ab3 g6 8 0-0 d5 9 exd6 Wxd6 10 ^g5 2>d8 11 Wf3 f6 12 £>e4 Wc6 13 cxd4 Ag7 14 £>bc3 f5 15 d5 fxe4 16 2>xe4 Wd7 17 He1 2if7 18 d6 0-0 The game concluded 19 &g5? exd6 20 <Ae6 Se8 21 Ad2 d5 22 £>xg7 Axe1 + 23 Axel Фхд7 24 Ac3+ d4 25 Axd4+ Wxd4 26 Wxf7+ Ah6 27 Wf8+ Wg7 28 #d8 g5 29 Wd6+ Wg6 30 Wf8+ Wg7 31 Wd6+ Wg6 32Wf8+ ’Л-Уг About the game there is not much to say. White could have won with 28 Wd6! Wd7 29 W4+ &g7 30 Wh4! and the attack is irresistible, but then again, Black could have won with 20...We8! followed by 21...Axe6 or even 2O...Wc6!?. Let us start with looking at the text move, 19 <53g5?. The reason for the’?’ to this move is not only concrete, but 19 ^3g5 is also wrong on principle. Instead of including the queenside in the attack, White attacks f7 without a realistic chance of regaining the sacrificed mate- i rial. His attack simply loses momentum. After 19...exd6 20 Ae6 Wc7 21 Ae3 Axe6 22 £3xe6 Wc6 Black wins. Of' course this move needs to be investi-' gated, but also quickly dismissed once it
is dear that it does not win material im- mediately. The third best move is probably 19 Af4 which should be answered with 19...e5! 20 Ag5 <£>h8 21 Ae7 £>g5!! Only move. All other moves lose. 22 We3 ^xe4 23 Axf8 Axf8 24 txe4 Axd6 gives Black better chances, but the position is not completely clear. Black has some problems developing. The second best move is even more bound to the notion that development precedes attack. 19dxe7!? Wxe7 20 Ag5! To understand the position without ana- lysing 19 Ah6, this is the most natural way to continue. The bishop is devel- oped with a gain of tempo and f6 is un- der attack. Black now needs to continue with 2O...Wb4! After 2O...Wd7? 21 Af6!! Black cannot defend himself: a) 21...$h8 22 Wc3 £>h6 23 Wc5 Hg8 24 Sadi Axf6 25 £3xf6 and White wins. b) 21...Wf5 22 Wc3 £h6 23 £ld6 Wh5 24 £)xf7 Sxf7 25 Se8+ Af8 26 Sxf8+ &xf8 27 Wb4+ and Black is mated. 2O...Wc7? 21 Sacl Wd7 22 Af6 is similar to 20...Wd7. It is not easy to imagine a line where the rook is worse on cl than it was on al. Now, if he has nothing better, White has 21 Ad 2 We7 22 Ag5 with repeti- tion, even though 22 £>g5!? looks tempt- ing in a way it did not earlier. Sometimes it is enough to know you have a draw in order to go for a line, especially if the line includes the sacrifice of a piece, a rook or something more. The right move however is 19 Ah6I! The main idea behind 19 Ah6! is not so hard to spot. If Black plays 19...Axh6 then White wins a lot of material after 20 dxe7 Wxe7 21 £if6+ and Black will have to give up his queen for insufficient compensation. Besides this, it is little more than activating the bishop, throw-
ing it into the enemy camp — a feature called launching by Tai, an expression taken from ice hockey, where the puck sometimes is shot deep into the oppo- nents’ half, before any attackers are there to exploit it. But Black of course needs to respond. He cannot play 19...exd6 because of 20 £)ftrl-. Nor can he play 19...Wf5 (an at- tempt to free the queenside and relieve the pressure on the king by exchanging queens) as White wins after 20 dxe7 Wx£3 21 exf8W+ £xf8 22 gxf3 ±xh6 23 £kI6 and the pin costs Black a piece, and he ends up being an exchange down. But what is White threatening? Nothing really. His next move would be 20 Eadl after which he is suddenly starting to have a lot of threats, but mainly 19 JLh6! is about domination. Black somehow needs to get out of this. It cannot be done by 19...e6 as after 20 JLxg7 l&xg7 21 Wf6+ &g8 (21...ФЬ6 22 Se3 or 22 ^3g5 illustrates the importance of being able to see candidates and little more) 22 Wd4 White has a very strong, probably decisive attack. The only move is to force White to exchange on g7, without Black giving up the rather weak, but still existing, control over f6. 19...ФЬ8!? is therefore the only defensive option that gives Black any hope of surviving. White should now proceed with 20 JLxg7 + Фхд7 21 Hadi! bringing the rook into play as described in the abstract objec- tives above. It has not been possible to find a defence here for Black, and most likely there is none. One attempt starts with 21 ...Wd8 and now after 22 Wc3 + e5 (Black has no choice here as after 22...Ф116 23 dxe7 Wxe7 24 £}d6! he is under heavy artillery fire, unable to find cover anywhere) White has time and active pieces enough to launch a deadly attack on the dark squares, weakened by the exchange of the bishops. Best is 23 f4! and Black seems to be quite lost. The lines go something like this: а) 23...Дд4 24 fxe5 £xd1 25 e6+ &h6 26 e7 Wd7 27 Wd2+ Фд7 28 Wd4+ &h6 29 Exd1!. b) 23... ^d7 24 &xf7 &xf7 (24...Sxf7 25 fxe5 Wb6+ 26 &hl Wc6 27 e6+ Wxc3 28 £ixc3 Hf5 29 e7 30 e8W £3xe8 31 Sxe8 Hf8 32 d7 and White has not yet finished cashing in) 25 2ig5+ Фд8 26 Wc4+ *h8 27 ^kf7+ Sxf 7 28 Wxf7 and White has a winning attack without having invested any seri- ous material in the process.
CHAPTER FOUR Test Position 2 Test Position 2 White to move. Take 30 minutes and play the white position as if it was a game and you had 30 minutes to the end of the game. This can be done against a friend who is finding the relevant replies in this book, or against a computer chess-playing program like the famous Tom Skovgaard ‘So. We have two rooks each, two minor pieces each, two queens and five pawns each. It is a completely even position, materially. However Black has some kind of attack here. We have a weak king’s position. He threatens l...Wal+, chasing the king out. Maybe I can go to c2, but ...b4 is threatening. Everything is threat- ening here. We also have some heavy pressure on the black king. He cannot casde. He cannot do anything here. He cannot get his rook out. It is a very sharp position. Oh my God. It is a very sharp position indeed.’ What can we do to prevent l...b4 and the breaking up of the king’s position? We probably need to activate some de- fending pieces. Probably 1 JLd3 or something like that. Do we have any threats here? No. If that bishop moves — we cannot even go to d7 with a check. Hmm. We need to get the other rook into the e-file. 1 JLd3 looks sensible. I...b4 2 JLbl maybe. Yes. Then 3 Hhel. What can Black do?’ 24 He1 7 min. 24...Wa1 + 25 &d2 Wxb2+ 26 ФеЗ 8 min. 26...£e6 27 &f4 Wf2 28 £xb5+ 12 min. 28...axb5 29 ®c6
29...Wh4+ 30 g4 13 min. 3O...Wf6+ 31 &g3 0-1 J lere the arbiter/writcr stepped in and declared the position as winning for Black. White does not have enough for his piece at all. Ivo Timmermans ‘Materially the position is equal. Both kings are in danger. White has pinned the black king down on e8 and all he needs now is another check somewhere, along the e-file. Anything that keeps the king in the centre basically.’ “Black has a queen on a2 and White should be careful. There are some attack- ing ideas for Black, for instance 1...^3a4 and l...Hxc3 or l...Wal+ followed by 2..JLb3+. Even l...b4 is an option. 1...£1c4. So Black has a lot of counter- play, which means that White will have to move fast and open the lines to keep the momentum going.’ ‘At the moment White is to move and the knight on b6 is hanging. I am not sure if this is a real problem. But let us first have a look at 1 Wxb6.’ 24 jkd3 19 min. 24...'#a1 + 25 1Ы Aa2 26 v>c4 26...WxM + 27 &d2 2>xc4+ 0-1 Sten Vesterli ‘Even material. My king is badly placed. I have not castled. I am a bit in trouble, as his queen and bishop work well together. They should be able to create threats.’
Ъ1аск is also not doing well in this re- spect. He has not cashed yet. And he cannot castle now. Can I see a check. No, not immediately.’ What if I just ignore his attack and take the knight?’ Sten played the following way: 24£d3 After 4 minutes of thinking. 24...Wa1 + 25 1Ы 6 min. 25.,.Aa2 26 Фс2 7 min. Sidsel Haag ‘It is a very open position. Black has yet to casde. f7 looks as a possible target square. White has not really finished her development yet. It would be nice to bring the rook into the game. It would also be nice to prevent Black from cas- hing. ’ ‘It is also important to take care of the white king. The black queen is near and there is a rook aiming down the open c- file. The knight can also quickly enter the attack.’ White’s light-squared bishop does not have many squares. c4 looks as an im- portant square.’ 24 £d3 After 10 min. 24...Wa1 + 25 ±Ы 12 min. 25...£a2 26 Wd3 14 min. 26...Ab3+ 27 Фс1 27...Sxc3+ 28 bxc3 10 min. 28...Wxc3+ and he resigned. 0-1 26...g6 27 Hhe1 17 min. 27...0-0 28 2>g4 20 min. 28...Cia4 29 Wc2 22 min. 29...£sxc3 0-1
Peter Heine Nielsen ‘I have seen the position before, it is from a game played by Arakhamia against, someone.’ (long pause) ТЪе first move that catches the eye is of course to play 1 JLxb5+ and 2 Shel. But it does allow a certain counter- attack.’ (pause) ‘A move I like based on general feel- ing is 1 JLd3, as it develops a piece, opens the rook and protects my king, though I am far from certain as to what happens on the reply l...Wal+ 2 JLbl JLa2. It could easily turn out to be somewhat complicated. Besides, on 1 JLd3 then the move l...£ia4 looks like an option as well.’ 24£d3 17 min. 24...Wa1 + 25 £b1 ia2 26 Wd3 23 min. 26...g6 27 £)d7 26 min. 27... 1хЫ 28 2rf6+ <^f8 29 Wxb1 0-1 Peter’s final evaluation was that he was in trouble, but might be able to make a draw in the endgame after 29...Sxc3+. Jesper Hall “The black king is stuck in the centre. It seems natural to get an attack started. I Ie has a counter-attack against my king with his queen on a2. It feels like I should have some opportunities with 1 JLxb5+ and 2 Shel with full speed forward.’ “The knight on b6 is also hanging, of course. And there are always such tricky things as ...Exc3+ or ...Wal+. But besides that, it seems very7 natural to play 1 JLxb5+ and 2 Hhel.’ 24 Wxb6 After 20 min. 24...Wal + 25 Ad2 20 min. 25...Wxb2+ 26 Ae3 20 min. 26...Wxc3+ 27 Af2 22 min.
27...Wxe5 28 ДхЬ5+ 23 min. 28...&f8 29 Xhe1 23 min. 29...Wb2+ 30 £g1 26 min. 3O...Wxb5 31 Wd6+ 27 min. 31...*g8 32 Exd5 27 min. 32...Wb8 33 Wxa6 27 min. 33...h5 34 2g 5 %-% 28 min. Here we stopped the game. The posi- tion is very slighdy better for White. To see what would happen in a blitz finish did not seem appealing to either Jesper or the writer. Peter Skovgaard White has fairly good pressure against the black king, which cannot casde as the white queen is currently preventing it from doing so. But Black also has his queen a fair way into the white position. But on the other hand he does not have that many other attacking pieces. Maybe the rook on c8 can become dangerous. But White can quickly come with all his pieces against the black king. So I think White has a nice position. And the black knight on b6 is hanging, but so does the white rook on dl, with some checks.’ ‘White has pressure against the black king, which cannot escape, while the white king probably seems more safe.’ 24 Дс4 15 min.
24...Wal + 25 *c2 Wa4+ 26 &Ы 16 min. 26...Zd8 27 Wxb6 22 min. 27...bxc4 28 Wxd8+ 28 min. 28... &xd8 29 Bxd5+ 29 min. 29... Фс7 30 Shd1 Time scramble 30..Л6 31 Дс5+ Уг-Уг We stopped here; Peter had 16 sec. left on the clock. Later analysis showed that the posi- tion would still have been drawn for White after 31...ФЬб> 32 Пс6+ and Black is forced to enter an even rook endgame, or after 31...ФЬ8 32 £k6+ ФЬ7 33 ^3d8+ Фа7 (ЗЗ...ФЬ6 34 Sc6+ gives the rook endgame again) 34 2c7+ ФЬ8 35 Hdd7! Hxd8! 36 ЙЬ7+ with per- petual check. Fritz 8 ГгИ% wants to play 1 JLc4 after 9 sec- onds. After 14 seconds the evaluation is +2.8, which is more or less a piece up. We continued with the move 1 JLc4, and went down the line some moves, before wondering what would happen if Black castled in a certain position.’Oh, of course!’ exclaimed Mathias.’Black is not allowed to castle. The position is set up wrong, we have to start over.’ Mathias explained that in the old set-up box the flag was set for castling as possible, but several complaints from customers who could not change this into castling not possible themselves, made Mathias re- verse the dialogue box. So we returned to the diagram. After 2 seconds wanted to play 1 JLc4 again. But this time it was only plus 1. After some time, about 30 seconds, the program changes to 1 £lc6. Mathias said: ‘Now the evaluation is clearly not stable. The program is ever changing between 1 JLc4 and 1 £3c6.’ Even though the position was 10 moves deep, the lines seemed very un- trustworthy to me. Mathias explained
that the last moves in long lines are not very trustworthy. He only makes the lines so long in the output on the screen because people like it (and he is right — I like it too). In the older versions the main lines were restricted to just a couple of moves. It is not a matter of horizon, Mathias explained, but a question of how the search is done.’Ftz'/^ does not have the problems of other main programs,’ Mathias explained.’Sometimes Shredder will have some weird move in the main lines on move 2 or 3, just dropping a queen.’ (This was not said to put Shredder down. This program is maybe even stronger than Frit% these days, though the difference is limited.) ‘Often the main lines are right, but sometimes they end with absolutely non- sense.’ After З'/z min. the main line changed, which was an indication for Mathias, that the evaluation was not sta- ble.’So I wait a bit longer,’ he said. After 5 min. the evaluation of 1 £3c6 increased, and Mathias said he would execute it if 1 JLc4 did not score very high on the same search depth. 24Fic6 After 6 min. 24...Wa1 + 25 *d2 There are no alternatives because of 25 Фс2 JLb3+’ (Mathias). 25...Wxb2+ 26 Фаз Frit^ is certain that this is the move to play after 13 seconds. 26... Sxc6 27 Se1 + Again no choice. 27...£e6 28 Wxc6+ Фе7 29 Wc5+ 3 min. 29...*d7 30 Sxe6 After 4 min. 3O...fxe6 31 Wxb6 Sd8 1-0 We decided that, as White had many strong moves here, we would stop and say that Frit% had managed to achieve a winning position, and that the game would now enter a technical phase. Artur Yusupov The position looks very promising. We
have good attacking chances. Of course our own king is also weak. So sometimes we should be careful, c.g. ...Wal+, Фс2 JLb3+ and so on. There are some possi- bilities for bringing Shi to el quickly by sacrificing on b5. This should probably be considered.’ ‘...Sxc3 can sometimes be a resource for the black defence, and I can perhaps also play something like 1 JLd3 to pro- tect my king. Of course, I also need to check what will happen if T simply take on b6. Some checks for sure. 1...Wal+ 2. Фс2 ±b3+ so 2 &d2 Wxb2 3 ФеЗ Wxc3. This should be calculated as well.’ 24 Дс4 20 min. 24...Wa1+ 25 Фс2 Wa4+ 26 ФЫ Ed8 26 min. 27...Фе4+ 28 fxe4 Sxd7 29 £xf7+ 28 min. 29...&xf7 30 Shf1+ Фе8 31 We6+ Se7 32 Wc6+ Sd7 33 Sd4 1-0 29 min. 27 £>d7 Proposed solution Test Position 2 Arakhamia Grant-Benderac Bled Olympiad 2002 Drench Defence 1 e4 e6 2 d4 d5 3 ^c3 dxe4 4 2ixe4 £3d7 5 £if3 vigf6 6 2ixf6+ 2>xf6 7 c3 c5 8 5ie5 a6 9 ke3 Wc7 10 Wa4+ 2id7 11 0-0-0 cxd4 12 &xd4
Ad6 13 £id3 b5 14 Wc2 e5 15 ДеЗ lb7 16 f3 Sc8 17 2>f2 Дс5 18 Wd2 АхвЗ 19 Wxe3 Wc5 20 Wd2 ®b6 21 ftd3 Wd5 22 ^xe5 Wxa2 23 Wd6 ld5 did not get out of this exercise in style, so we wiU leave it at that. More interesting was Jesper HaU’s at- tempt to take the money and run. After 24 Wxb6?! I am sure that Black has com- pensation for the piece in several ways. This exercise and its beautiful solution was pointed out to me by Jesper Nforch Lauridsen, who spotted it reading a newspaper column on the internet. The actual game continued in very much the same way as Sten Vesterli’s game did with 24 £d3? Wal + 25 £b1 -£a2 26 ic2? £b3+! 27 Фс1 Hxc3+! 28 £d2 Wxb2+ 29 Фе1 He3+ and White resigned. I know this is probably not a nice thing to say, but this time, quite lit- erally, White did play like a beginner. Or rather, played like a very strong player on an off-day. AU this should be compared to Peter Heine Nielsen’s failure to see the same tactic, even though he was forewarned with prior knowledge of the game. Both he and I were deeply puzzled as to how this could ever happen. After 24 JLd3, the best White can possibly get is actually the way Peter played above. Tom Skovgaard lost quickly with 24 Eel?, and there is not really anything else to say about this. Also Ivo Timmermans I played the most obvious move against this (24...Wal+), but also interest- ing is 24...0-0 completing development before crowding on the white king. White looks better in that line after 25 Wd4 i.b.3 (25...Sfd8l?) 26 Ad3 a5l? 27 Shel (also good is 27 JLbl Wal 28 £k!7 b4 29 £>xf8 Sxc3+ 30 &d2 Wxb2+ 31 &el Axdl 32 £xh7+ ^>h8 33 Ad3 Wcl 34 Wh4+ Wh6 35 Wxh6+ gxh6 36 &d2 and White is better) 27...Wal+ 28 ^.bl b4 29 c4 JLxdl 30 Exdl a4
and now simplest is 31 ^3d7! Sfd8 32 Ф02 with the threat of JLxh7+, deciding the game in White’s favour. Still, there is a lot of fighting to be done yet. It should be noted that also after 24..,JLb3 White is better: 25 JLxb5+ axb5 26 Wxb5+ &f8 27 Wb4+ Фё8 28 £)c6! g6 (28...h6 29 $k7+ ФЪ7 30 We4+ g6 31 £3xc8 Axdl 32 flxdl Sxc8 33 Wd5 and White is better) 29 ^3e7+ 30 £)xc8 Wal+ 31 ^>d2 Wxb2+ 32 ФеЗ Дхс8 33 Wd4+ and White should win. So 24..>al+ is the move, leading to a slight advantage for White, as can be seen by Jesper’s attempt. One move that did get mentioned a lot, but never played, was 24 JLxb5+?. The idea is that after 24...axb5 25 She1 Black should be faced with certain death. This is, however, not the case. Black plays 25...Wa1 + 26 Фс2 £b3+ (too familiar by now to deserve exclama- tion marks!) 27 ФдЗ and now simply 27...Wxd1 +! 28 Sxd1 Sd8 and Black leads decisively in material. The JLb3 still protects f7. The correct solution to this exercise was actually only found by Yusupov. did manage to gain a winning, though muddy, position with 24 423c6!?. There is not much more to say about this move. However, there are some additional variations to: 24 Фс4!! This was the move discovered by Jes- per Morch Lauridsen. On the phone we worked out the following sequence within a few minutes. 24... Wa1 + This is the only move. Other varia- tions do not work as the following lines demonstrate. a) 24...bxc4 25 Hhel jLe6 26 ^3xf7 Wal+ 27 Фс2 Wa4+ 28 ФЫ and White wins. b) 24...^3xc4 25 ^3xc4! (though 25 Wd7+ Ф18 26 Wxc8+ Фе7 27 Wd7+ ФТ6 28 £)g4+ Фё6 29 Hxd5 Wxb2+ 30 Фdl also wins) 25...JLe6 26 £3b6 and White wins. 25 Фс2 Wa4+ 26 ФЫ Sd8 26...bxc4 27 Shel JLe6 28 *53x07 ФхП 29 Wxe6+ Ф18 30 We7+ Фй8 31 Sd8+ Exd8 32 Wxd8+ $f7 33 Se7+ Фё6 34 Wd6+ ФЬ5 35 Se5+ g5 36 g4+ Ф114 37 Wh6 mate.
fxe6 30 Wxe6+ He7 31 Sd7 32 Де1+ $d8 (32...&f8 33 Wc&+-) 33 Wxb6+ Фс8 34 JLe6 and White wins. 28 fxe4 3xd7 29 i.xf7+! The alternative 29 Wb8+ Фе7 30 Hxd7+ ^3xd7 31 Wxh8+- Wxc4 32 Wa8 is, of course, better for White, but 29 JLxf7+ is decisive. 29...£xf7 30 Hhf1+ &e8 31 We6+ He7 32 Wc6+ Sd7 33 Sd4! 27 2id7!! The strongest, though also strong is 27 Wxb6 bxc4 28 <5Tc17 (28 Wxd8+ &xd8 is less clear, while 28 Hxd5? Sxd5 29 Wb8+ Sd8 would win for Black) 28...£e6! (28...Wxd7 29 Bhel+ &f8 30 Wc5+ ^g8 31 Sxd5 Wc8 32 Sedl and White wins) 29 g4 with a strong position for White. 27...JLe4+ 27...Sxd7 28 JIhel+ -&е6 29 Sxe6+ and White is winning.
CHAPTER FIVE Test Position 3 Test Position 3 White to play. Take 7 minutes to find the strongest continuation, talking into a microphone or writing down your thoughts afterwards. on the a2-pawn, and in that connection remove the c4-bishop. Even though it is unprotected, it is very central, which has got to be an irritation.’ ‘Of course it loses the a-pawn, but in return White gets the c-pawn. And gets a more active bishop thereby.’ (long pause) ‘1 £kl4 could also be an idea. The knight would be more centrally placed, (long pause). I am thinking about 1 £lcl in order to play b3 to chase the bishop away, but it looks slow and clumsy. The knight might even get trapped.’ T g4 could also be fun. Threatening to implement the knight fork anyway with 2 g5. It is not possible to take it. Time up.’ 1 <5id4 without thinking about 1 ...Sd8. Sidsel Hoeg There is a fork on d7. Maybe it is possi- ble to implement it somehow. The pawn on c6 looks weak. The black bishop is hanging lose in the wind.’ ‘I do not have a lot of ideas to start with. 1 4ia5 looks like a good start, in order to put pressure on the pawn on c6. It would also be nice to move the b3- knight, in order to relieve the pressure
Sten Vesterli ‘First thoughts on material. Black has a far advanced pawn on b4. The c-pawn is blocked. White is sensitive on the back rank by absence of the white rook. Black is slightly vulnerable as well. There is a fork on d7, though protected.’ The сб-pawn looks not so strong though it is protected by the knight. The bishop on c4 is unprotected. And so is Black’s rook. Same coloured bishops. The knight on b3 can be taken, but this docs not free the c-pawn immediately due to the control of the rook.’ ‘His pieces are safe from White’s bishop. And his king is on a dark square. White also has no weaknesses on the light squares. He would like a knight on d5. Should be the f-knight.’ Taking on e7 loses an exchange in re- turn for the c-pawn. Pawns on both flanks, which must mean that Black will not give up his bishop with taking on b3. a3 gives White a passed pawn, if he takes. But this also gives Black a passed c-pawn. But if he does not take he will get the rook attacking the b-pawn.’ Time up! His final choice was 1 ^a5 assuming the following line: 1...JLxa2 2 £ixc6 ‘йхсб 3 JLxc6. Tom Skovgaard ‘Checking the position ... It looks equal. Even material. Ok, so it is White to move.’ ‘White’s rook is a little bit more active in the centre of the board, keeping Black’s king out of the centre. That knight on c5 looks strong, protected by the other knight. Black’s pawns are a little advanced on the queenside; how- ever, in an endgame White might create a passed pawn on the а-file, though this is probably not that relevant here.’ ‘So what can we do here? The white king cannot improve. The black bishop is quite strong. What can the black knights do? ...£)g4? Is that a move? The other knight can go to d5. Black might be alright in this position.’ “Maybe there is not that much to look for here. Maybe a tactical plot? Maybe a knight fork of some kind. Not on d7 at least.’ ‘I £t us look for some tactics. 1 JLxc6? No, nothing there. What else? Can the knights move somewhere. Maybe 1 £)d4 increasing the pressure on c6. It is a move. l...JLxa2 2 £3хс6 £3xc6 3 A.xc6, oops losing a knight to, no, 3...Sc8.’ This does not look dangerous any- way. What about 1 Дхе7 Фхе7 2 JLxc6,
is there anything there? No. It is not in- teresting, it is just a pawn for an ex- change. But with the knight on d4 we are threatening Дхе7, so after 1 £3d4, then l...jLxa2 is not possible. 2 Дхе7 Фхе7 and he loses his rook.’ ‘So what is the best answer to 1 £3d4? It is threatening b3 or even a3.’ ‘1 ?3d4, what can Black play? Moving his rook? Where? Hmm.’ "To d8, no. Oops. There is a mate on the first rank. I do not think White has a very good position here. Could we only get rid of the bishop.’ ‘Oh yes, 1 £ia5, we have the same threat of fixe7. What can he do? 1 ..JLd5. What then?’ ‘1 ^3a5.’ ‘It looks good, as it gets the bishop out of the diagonal. Okay, he could play l...^.b5.’ This is not an easy position.’ ‘1 2)d4 or 1 ^3a5. I prefer 1 £)a5 as it threatens the bishop. Black moves his bishop, protecting the c-pawn. Maybe then we can threaten his... No.’ ‘Are there other options. 1 £3a5 JLb5 or ,.JLd5.’ ‘Can we get rid of £if6 instead maybe? No. Maybe 1 JLh3 threatening to ex- change knights? No. It is not good. Maybe we can do that afterwards. 1 £ia5 B-somewhere 2 ^h3 and 3 £id7 putting 1 pressure on the pawn. He will have to protect the pawn with the rook, 2...ДЬ6. We need to get the king out. Maybe just f4. I like that pressure on the c6-pawn, and I need to move now.’ 1 £»5. Peter Skovgaard ‘First let us look for tactical possibilities —some checks with ^3d7 or something - his pieces are placed a bit awkward, maybe it is possible to exploit this. The сб-pawn looks badly placed as well. And he would like to have placed his rook better, so maybe l...Sd8 with the idea of Sdl+.’ ‘So I probably have to put him under pressure. Maybe threaten some of his pieces to maintain pressure.’ ‘Maybe 1 £3a5 or something like this. Or maybe 1 g4 to put pressure on the f6 knight, but then he has l...Hd8 and it is not so convincing.’ ‘Maybe 1 £3d2, but then l..JLxa2 might be possible. Let me look for something tactical.’ ‘Maybe 1 Пхе7 and 2 JLxc6, nah, then 2...Sc8 and it does not look good.’ ‘Maybe 1 ^3a5 and then 2 Sxe7. If he
plays l...Ab5 then maybe it is possible to play...’ “Maybe then 2 Дхе7 and 3 Axc6, but not really. 2 a4 maybe.’ ‘I think 1 £la5 is good.’ ‘Or 1 £k!4 Ab5 2 &xb5 ДхЬ5 3 Afi and it does not look super good for him, though he can of course play 3...Ha5.’ ‘1 ^)a5 Ab5, what then?’ ‘Or maybe 1 £k!4 first looks better. If l...Axa2 then it is definitely possible to take on e7, so he should not do this, but if he plays l...Ad5, what then? 1 can play 2 Axd5 £ifxd5 3 £3d7+, so this he should not play. And l...Ab5 then I can play... What can I play then?’ “Maybe then 2 Exe7 Фхе7 3 Ахсб.’ “3...fic8. But what then? I have a pawn for the exchange. It does not look super clever. There has to be something better than this.’ ‘Maybe it is just 1 Дхе7 Фхе7 2 Ахсб. No then he has 2...Axb3 and it is not at all pretty.’ ‘1 £)d4 Ab5 and then 2 a4 bxa3 3 ЬхаЗ to create a passed pawn on the queenside. And if he then plays 3...Sd8 I can simply play 4 £kb3 to protect my knight.’ 1 £ia5 is executed. Ivo Timmermans ‘A late middlegame. White’s pieces are a bit more active. Especially the bishop on g2 is quite strong. The rook on e5 as well. A strong knight on c5. There is pressure against the сб-pawn, which is defended by ^3e7. I see some tactical ideas coming up. I think White should play vigorously, some ideas like 1 ^3a5,
attacking c6 and also indicating Sxe7, and there is a potential fork on c6. First let me look at candidate moves. But first let me check that 1 Sxe7 Фхе7 2 £3a5 is not very strong. Then I will check all other options.’ ‘Is there a positional way that White can play? Well, I do not see any so I will first try to prove the tactical ideas.’ ‘Okay 1 ^3a5, 1 Sxe7 is a candidate, 1 ^3d2 is maybe a candidate, but it seems to be a move without an idea.’ ‘1 Sxe7 looks like an interesting move. 1...Фхе7. If you play l...JLxb3 you play 2 2a7. Okay. 1 Sxe7 Фхе7 2 ‘Slab...’ ‘2...JLb5 or 2...JLd5, no then simply 3 JLxd5 wins. 2..„&b5 3 JLc6, but 3...Sc8 spoils the fun of it. Black is winning.’ ‘So what can we do?’ ‘(Ian we play 1 £la5 straight away?’ The idea is Hxe7 and £3xc6. 1 ^3a5 — the bishop is hanging.’ ‘l...JLe6 then you’ve got 2 ‘Slxeti, so I guess you have to play l...Ab5.’ ‘I can play 2 ^3a6, let me just have a look. 1 £>a5 JLb5 2 JLxc6...’ ‘...then comes 2...^3xc6. 1 £3a5 JLb5, what is also possible is 2 ^хсб, no then comes 2...“53xc6 and I must play 3 JLxc6...’ ‘1 ^3a5 JLb5 2 JLxc6 JLxc6 ah, 3 Hxe7. This is maybe a nice idea.’ ‘Ok. Tx:t me try again. 1 “53a5, if l...JLd5, then 2 Exe7. Ok, 2 minutes to go, let me just look at the simply lines.’ ‘l...JLb5 is one move. 2 JLxc6 JLxc6 3 Exe7, so 2...‘$3xc6. This docs not work.’ ‘Maybe 1 should play 1 ^3a5 JLb5 2 a4 ЬхаЗ 3 ЬхаЗ and the threat is a3-a4.’ ‘1 ^3a5 JLb5 2 a4 ЬхаЗ 3 ЬхаЗ. You can play JLfl. That is another idea.’
‘1 4ia5 is a bit... 1 <?3d4 maybe.’ ‘Okay, 1 £3a5 ±b5 2 .fi.fl.’ Ok, time up. '1 £>a5 is my choice.’ Jesper Hall ‘1 had sadly forgotten to mm on the mi- crophone for Jesper during this exercise, but luckily I was present and listened to what he said. Unfortunately such an ex- periment cannot be reproduced, as the subject now knows the exercise and has formed an opinion. So we will have to live with my recollection of his ideas.’ ‘Jesper had some ideas about improv- ing his king, but mainly he went down the road most travelled with different attempts of tactics with 1 41a 5. He did overlook that after 1. ..fi.d5 2 fi.xd5’ Ъ1аск has 2...cxd5, and thus spent some time concerned with tricks after 2...43fxd5 3 43xc6, to see if there was anything there. Like the other test per- sons, he felt he needed more time.’ Peter Heine Nielsen “The first move that springs to mind is 1 43a5 in order to exploit some tactical possibilities, but even l....fi.xa2 2 Hxe7 Фхе7 3 43xc6+ ^d6 is not particularly clear. Hmm.’ (long pause) The move 1 am mainly thinking about is 1 43a5, but I am also thinking about 1 <53d4 and 1 g4, or even 1 .fi.fl and 1 43d2, but mainly I am thinking in general terms like — what is it 1 want to achieve in this position?’ ‘1 am happy with my activity and all of my pieces, maybe except for my knight on b.3, which is also the piece 1 am con-
sidering moving. But it is as if there is a lack of coordination in the black posi- tion, but then again, it does not seems to be possible to exploit it. So that is the nut I am trying to crack.’ “The most tempting first move is in many ways 1 <2ia5, but I have great diffi- culties making it work. 1 £}a5 JLd5 al- lows 2 JLxd5 and then he needs to play 2...cxd5, which could be playable. It might even be possible to play 2...£)exd5. So it is far from clear.’ ‘I think that the white position is promising, but it should not be exagger- ated. It is difficult to find a sensible plan.’ “Black’s play is deeply based on the d5 square. I am considering 1 £k!2, but I have to look at l...JLxa2, and it is not easy to find a refutation. 2 b3 Sd8 docs not look encouraging.’ ‘So it is difficult to find a move for which I have any particular sympathy.’ ‘I would like to play against the b4- pawn, but it is my impression that it will always be defended well from d5.’ Time up! ‘I have no clear preferences at this time. If I had to move now I would probably play 1 ^a5, even though I do not like it much. I have nothing against l...JLxa2. I also considered playing 1 Hei with the idea to play against the c-pawn.’ ‘I do not think that the rook is well placed on c5. Maybe even to try to make something out of the a-pawn, even though that seems a bit absurd.’ Artur Yusupov ‘Artur failed to find any decisive tactics after 1 £la5, just like everyone else. Ac- tually his thought pattern was very simi- lar to that of Peter Heine Nielsen, except that it seemed to go a little faster with Artur. He never mentioned nor realised that impact of the white passed pawn, but was stuck with the tactics.’ 1 £>a5. Fritz 8 ‘After 7 min. b'rit^ chooses 1 He1. The main idea is to protect the a-pawn with Hei-al and later to push with a2-a4.
When Black then takes bxa3, then wants to take with the rook, basically because the knight is attacked on b3.’ Proposed solution Test Position 3 Portisch-Korchnoi World Cup, Skelleftea 1989 Bogo-Indian Defence 1 d4 e6 2 c4 £b4+ 3 £d2 a5 4 £>f3 d6 5 g3 £>c6 6 Ag2 e5 7 d5 ^се7 8 Axb4 axb4 9 2>bd2 £>f6 10 0-0 0-0 11 &e1 c6 12 dxc6 bxc6 13 £id3 Zb8 14 c5 £a6 15 cxd6 Wxd6 16 C,b3 Hfd8 17 CidcS Wxd1 18 Sfxdl Sxd1+ 19 Hxd1 £xe2 20 Se1 Дс4 21 Sxe5 £f8 22 2>a5 as chosen by all the strongest humans to encounter this position as a test, is not dangerous for Black at all. The tactics does not work. The simplest reply is probably 22...JLd5! (22...JLxa2 also works out fine; after 23 b3 JLbl 24 £)xc6 £3xc6 25 JLxc6 Йс8 26 Jlb5 Kd8 the game is level.) 23 JLxd5 (23 Hxe7? Фхе7 24 JLxd5 cxd5 25 £)c6+ £?d6 26 4ixb8 Фхс5 is a false combination which actually gives Black a winning endgame. The knight is trapped on b8. So this combination suggested by almost everyone is actually losing) 23...cxd5! and at best White is equal. The knights are badly placed, and so is the rook. 22 Cid4? 22,..Hd8! 23 Sxe7 Hxd4 24 He1
Sd2 gives Black a better endgame. The right move was found in the game by Portisch, who realised that the only asset in White’s position offering him anything in the direction of an ad- vantage, is the possibility to create a passed pawn on the queenside. Yusupov said that Portisch had always been excep- tional in such situations. 22 Se1!! Frit% was the only to find this move, but still we should not overestimate the program. It was at no point clear that it desired to create a passed pawn, rather it wanted to play a2-a4 and then Sxa3. For tactical reasons — a hanging knight on b.3 — this was logical, but it would be even more logical to move the knight and then push the a-pawn. In the game the a- pawn assured Portisch of a slight edge, which he managed to convert to a full point due to the weak defence of his opponent. 22...Sa8 23 Sal 23...&ed5 24 a3 24 a4! is principally better, as Black is forced to take the pawn en passant. 24...ЬхаЗ 24...'^>e7!? 25 £ld4 and White is a little better. Still, Black should think about bringing the king into the game. 25 £d2! 25... 4ib6 25...Sa5 26 £lce4 JLd3 27 Sxa3 Sxa3 28 ЬхаЗ also gives White a very slight advantage with the distant passed pawn.
26 ЬхаЗ Jed 5 27 a4 Ha5? This allows White to win several tempi. It was time to include the king in the defence with 27...Фе7 after which Black would still have reasonable draw- ing chances. 28 JlxdS cxd5 28...Hxc5 29 JLf3 Sa5 30 JLxc6 and Black is probably lost. 29 ftdb3 Sa7 30 a5 £ibd7 31 £>d3 31...^b8 32 2>d4 *?3fd7 33 ПаЗ дб 34 £ib4 2ie5? Black was probably in time trouble here. 34...<$3c5 was better, though White remains with an advantage. 35 a6! ^c4 36 Sa2 £ib6? 36...^3d6! was forced, though Black is on the verge of losing. 37 2ib5 Sa8 38 a7 £i8d7 39 2ic7 1-0
CHAPTER SIX Test Position 4 Sten Vesterli 1 Wg5 Test Position 4 White to move. Take 10 minutes to find the strongest continuation, talking into a microphone or writing down your thoughts afterwards. This is a pure calcu- lation exercise. The idea is to find the strongest continuation and then to write down your main line afterwards. I have already used this position once in a previous book, Excelling at Combina- tions. I hope that those readers who have seen it there, will have happily forgotten the solution. As an exercise it proved perfect for this experiment. Sten was sure Black would answer... 1...2)e8 when he wanted to play 2 Af3
to clear the way for the d-pawn. be able to do in order to prevent mate.’ Sidsel Heeg 1 Sxg7+ ФТв’ог ФЬ8. Taking on g7 fails due to 2 JLh6+ ФхЬб 3 Wxf6.’ Ivo Timmermans 1 Пхд7+ Фхд7 2 ±h6+ ‘Oh no, then you can use the bishop as a defender. I had not considered this.’ ‘After 1 Hxg7 &f8 I was thinking about 2 Wxf6 or 2 .ih6.’ Tom Skovgaard 1 Sxg7+ Фхд7 2 £h6+ ФхЬб 3 #xf6+ Ддб 4 g4 Wa5 5 h4 Wa1+ 6 &f2'and I think Black is mated.’ Peter Skovgaard '1 2xg7+ Фхд7 2 JLh6+ ФхИб 3 Ixf6+ ±g6 4 g4 Wa5 5 h4 Wa1 + 6 ФТ2 and T do not see what Black would 2...ФхЬ6 ‘2...ФЬ8 and mate in two, or 2..J&g8 3 Wxf6 and mate on g7.’ 3 Wxf6+ Фдб 4 g4 Wa5 5 h4 ‘And now 5...Wal+ 6 ci>f2 wins. So:’ 5...Hc5
6 dxc5 »xc5+ 7 &f1 'with the un- stoppable line threat of 8 g5 mate.’ Peter Heine Nielsen 1 Дхд7+ Фхд7 2 JLh6+ &xh6 3 Wxf6+ i_g6 4 g4 Wa5 5 d5 #xd5 6 h4 ‘and White wins.’ Peter decided not to play 5 h4 because of 5...Sc5 6 dxc5 Wxc5+ 7 ^fl Wgl+ 8 ^xgl stalemate. Jesper Hall 1 Пхд7+ Фхд7 2 £.h6+ &xh6 3 Wxf6+ Адб 4 д4 Wa5 5 h4 Дс5 6 g5+ ‘I tried to find an improvement on this, but could not really find anything. Therefore I go for a perhaps slighdy bet- ter endgame.’ 6...Sxg5+ 7 Wxg5+ Wxg5+ 8 hxg5+ &xg5 9 Axc4. Artur Yusupov Artur suggested the following line: 1 Дхд7+ Фхд7 2 Ah6+ &xh6 3 Wxf6+ ±g6 4 д4 Wa5 5 h4 Ec5 6 Wh8 With the evaluation that White is win- ning. After the light-squared bishop moves, Artur wanted to play 7 Wf8+ and
8 Wxc5 with an extra pawn. Fritz 8 Mathias: ‘Frit% sticks to the main line which it found after 2 sec.’ The main line here is simply 1 Sxg7+ ^xg7 2 Ah6 + &xh6 3 Wxf6+ ig6 4 g4 Wa5 5 h4 Sc5 6 Wh8 Ae4 7 Wf8+ and Fri% takes the material, claiming a winning position. Proposed solution Test Position 4 Kushnitzky. This position is based on the game Stern-Kushnitzky Russia 1952 about candidate moves. This one, which is about visualisation in long lines, and no.8, which is about decision making in a confusing tactical position. Here White has a typical attacking pat- tern in 1 Sxg7+! &xg7 2 Ah6+! &xh6 3 Wxf6+ jLg6 4 g4 Wa5 5 h4 and seemingly there is no defence against the threat of g4-g5 mate. Even to see this far can prove difficult for 2350-players, who are not experts on tactics. Weaker players with a tactical gene can find this position pretty easily. But I doubt that many would be able to see the defence found by Kushnitzky. 5...Sc5!! There are three hardcore calculation exercises in this book. No.l, which is This clever defence looks like a refuta- tion of the white attack. After 6 dxc5
Wxc5+ 7 <4>fl Wgl+! 8 &xgl Black is stalemated. This was what actually hap- pened in the game. Previously to this Black had removed his pawn from a6 to make this work. But a closer look at the position makes it apparent that White in no way has played all his trumps. There is an important rule to attacking chess: If your opponent succeeds in pre- venting your primary attacking idea, this often happens on the cost of something else. So do not abandon the attack, rather investigate the arising position (in advance of course), and see if new possi- bilities have arisen. Here new possibilities have indeed arisen, and White can attack the trapped black king in a new way with: 6 Wh81! And there is no real defence against the check on f8. Actually Avni, who in- cluded this game in his wonderful book Creative Chess, did not find this move. I highly recommend this book to anyone who feels that they can make solid ordi- nary moves, but lack the ability to see truly exceptional possibilities. A game could now continue with: 6...^.e4 6...JLd3 7 JLxd3 cxd3 8 Wf6 mate. 7 Wf8+ Фдб 8 Wxc5 Due to the threats against the black king, there is no way he can avoid the exchange of queens. 8..>xc5 8..>al+ 9 &f2 f6 10 h5+ &h6 11 g5+! with a mating attack. 9 dxc5 i.d5 10 &f2 &f6 11 ФеЗ Феб 12 g5! And Black is in zugzwang, as all moves will worsen his position. One of them is: 12...^.e6 13 сб ФЬб 14 ФВ4 and Black will inevitably lose. In the game Black had an extra pawn on a6 and did not have a stalemate com- bination. But after executing the combi- nation White wandered around the play- ing hall, and did not notice that the pawn had left the board when he returned. After which he stalemated his opponent. After having had his fun Kushnitzky explained to his choked opponent what had happened, and resigned the game.
CHAPTER SEVEN Test Position 5 Test Position 5 Black to move. Take 6 minutes to find the strongest continuation, talking into a microphone or writing down your thoughts afterwards. Sidsel Heeg ‘At first it looks very complicated. Maybe it is possible to use the open c-file for something. I need to take a stand con- cerning the possible exchange of queens. Stay or go now?’ ‘It is not possible for White to play 1 Scl , which otherwise would be uncom- fortable.’ ‘It is a bit sad to exchange queens this early, but it would also be sad to have to elope.’ ‘Here f4 would be a good square for the knight, but g3 is irritating. This would of course weaken the king a little bit, though it is limited how much im- portance this has, as 1 have no light- squared bishop. It would expose f3 and h3. The question is what to do with the queen. My first idea is just to let it stay where it is. If he takes I will get my rook to the second rank, and I will not lose any time in the process.’ ‘My dark-squared bishop is not that well placed, but right now there are no better places for it. l...JLxa3 unfortu- nately does not work.’ ‘c5 is a strong square. It can be occu- pied by the bishop or the knight.’ ‘Maybe 1..Лс4 in order to put pressure on the e4-pawn. But it gives White some ideas with moving the queen and letting the X-ray of the bishop come alive.’ Time up. ‘I had decided to play 1...^3h5, but then I realised a few seconds ago, that he can take the knight. If I have to commit to a move now, I will play 1 ...Sc4.’
(this is incidentally a blunder, as 2 Wxc4 picks up the rook.) Peter Skovgaard ‘It is a not a very pretty pawn structure Black has managed to get. But on the other hand he has been able to penetrate with his queen into the white position. And this I might be able to exploit by getting the heavy pieces into action. But first I want to check if anything is hang- ing and how the position is generally. At least it is even material.’ “What does White want to achieve? He probably wants to get his rooks into play. So probably he is scheming to reor- ganise his dark-squared bishop and then get the rooks onto the c-file. So, let me see if this is possible.’ ‘If l...(?3xe4 2 Wxc2 Sxc2 3 Ad3.’ ‘It does not look too cool, but maybe I have something poisonous. Maybe 3...Sxf2 followed by 4...Ac5.’ ‘4 Axe4 Ac5 5 ФЫ he might play, and I might reply 5...f5 and after he moves the bishop I can play maybe play 6...e4. His d-pawn might be weak, but on the other hand it might also become dangerous. His light-squared bishop seems to be a little bit trapped. Where is' it going? I might be able to... No, let me start all over.’ ‘1...^3xe4 2 Wxc2 Sxc2 3 Ad3 Hxf2 4 Axe4 Ac5 5 ФЫ f5.’ ‘Now, where will he go with his bishop? Or to say it differently — where can he go? He has 6 Ad3 and 6 Af3. If he plays 6 Ad3 then 6...e4 then 7 Ac4 is forced, as he will be mated at the bottom rank or lose the bishop. Well, no he can play 7 Afi, but then maybe I have 7...e3 and T might be able to trap his bishop in some mean way. Then he plays 8 Sei, maybe. I can then play 8...F4 or maybe 8...Se8, which looks even better. Now where can he go to prevent 9...e2. He might be able to play 9 Ad3. There has to be something better than this.’ ‘1...^3xe4 2 Wxc3 Sxc2 3 Ad3 Sxf2 4 Axe4 Ac5 5 ФЫ. What then?’ ‘Maybe the mean 5...Sxb2 6 Sxb2
&d4, but on the other hand this gains little. So it is not much fun.’ ‘Maybe it is possible to play... Well, maybe the sacrifice is not that great. It just looks so tempting.’ ‘I...£bce4 2 Wxc2 Sxc2 3 JLd3 what then?’ “Well ... 3...Sxf2 4 £xe4 £.c5 5 Ф>Ы f5 6 JLd3 e4 7 JLfl, then maybe 7...Sc8.’ occupied by Black now, and Hcl is not possible because of Wxb2.’ ‘Black’s king is open because of the h- file. The white queen could quickly come to h3, if it was not for the bishop on e2.’ ‘There is a possible exchange of queens. It might be an advantage to ex- change. If he exchanges the bishop on e2 will be hanging. So he needs to do some- thing. Then 1 would protect my rook with the other rook. There are not really any weaknesses in his position.’ ‘Ixit me see. I have an unprotected pawn on b7, but it does not seem to be in danger. 1 cannot move my bishop. Well, the only square would be e7, if not to blunder the queen.’ ‘Would I want to initiate an exchange of queens? No, he recaptures with his bishop.’ “What about the knight on f6? If I take on e4? It looks as if it works. If he threatens me with the bishop, where can the knight go? It can return to where it came from.’ ‘If I take on e4, then he can exchange queens, but that does not seem to be dangerous. No! Then he has JLd3 and I lose my knight.’ Time up. 1...ДС7. “This looks all right. The two passed pawns look quite hostile. What will he be able to do?’ ‘Yes. This will have to be it.’ 1...£lxe4 played, with the intention of 2 Wxc2 Exc2 3 Ad3 Hxf2. Sten Vesterli “Equal material. White has two bishops. White has a passed pawn. Black has two double pawns. The c-file is open; it is
Tom Skovgaard ‘Checking the position ... Materially it is equal; however, White has the pair of bishops. It does not immediately look as if he has the advantage, as the pawns are quite fixed. The bishop might not be very active in this position. We have dominance on the c-file. How can we increase the pressure here. White is probably threatening something like Пс1. We need to activate both rooks in the c- file.’ The knight is quite active on f6, threatening the e-pawn. The bishop can move to c5, threatening f2, especially if there will be pressure on the seventh rank.’ ‘Oh. There might even be some tactics here. What about 1...4Z)g4? No. Exchang- ing the queens and ...£}g4? No. It does not look as if it is a good idea to ex- change queens. The bishops take all the squares on the c-file and are simply too strong.’ We need somehow to increase the pressure here. Maybe by taking control over b3. And at the same time prevent- ing White from playing a4. Maybe simply l...a4.’ e3. But if he does so I can exchange queens and play ...ПсЗ. He will get a dif- ficult position after l...a4. Is there any problem with l...a4.’ ‘2 f4 maybe? No, that is a silly move.’ ‘Should I consider exchanging queens first? l...Wxd3 2 JLxd3 a4. Threatening ...£)g4.’ ‘He will have the bishop even if he plays 3 f3 in order to protect e4-pawn. Maybe I can even play 2...‘$3g4? No, it is not interesting. The knight is not doing anything there once I have exchanged the queens.’ What else? Any tactics possible? No, not here.’ ‘Oh, can we take that pawn on e4? 1...^3xe4. What is the problem here?’ What can he do then? His bishop is a problem. He needs to move it to cl and ‘Oh. 2 'Йгхс2 JSxc2 3 JLd3. It is a fork. No, there are no tactics there.’
‘l...£)xc4 2 Wxc2 Пхс2 3 JLd3. Is there a smart move here. 3...flxf2 maybe worth a look.’ “No, he just takes the knight. It does not work.’ ‘I...a4, followed by ...Sc7 and the other rook to c8, and ...Sc4 later. And if he plays f3, then ...£)h5 and there is a strong attack. Maybe even l...£3h5. Why not? He plays 2 g3. No.’ 1...^h5 2 g3 ‘Nothing there. Then I just need to play the knight to f6 again. I could also consider advancing the g-pawn to g5 and g4, but it is very slow.’ I vote for 1 ...a4. Fritz 8 In this position Fnt^ changes his main line all the time, with candidates as l...Hfd8, 1...a4, l...g5 and so on. Then l...Hc7. Mathias: When Frit% does not under- stand the position, it is because it does not have all the accessible knowledge. This means that the evaluation function can be improved even more. The choice of Frit? after 6 min. is l...Hc7, but it is not a steady evaluation. The move .1 am thinking of myself is 1...^3xe4, but of course this is sacrificing material.’ We then tried 1 ...£fxe4, and Frit% gave a similar evaluation, evaluation the move as 0.33 of a pawn less than l...fic7. Over time this drops to 0.25 of a pawn. does have some understanding of compensation,’ Mathias said,’but the problem is that you cannot set it too high. The difficult thing is to balance it. If it is too high it will be too optimistic about certain things. This is definitely a thing we need to look at in the evalua- tion function. Frit% should know about this.’ We then looked through the lines after l...‘53xe4, the evaluation increased to ’/г of a pawn.This is obviously a position Frif^ does not understand,’ Mathias said.’lt is a position even I understand! Something is wrong here ... a lack of un- derstanding.’ Frit^ decided on 1 ...Hc7.
Jesper Hall “The first thing 1 look at is, of course, 1...4ixe4, after which he will have to ex- change the queens with 2 Wxc2 Дхс2 3 &d3. And now I have an interesting move: 3...йхЬ2 4 ПхЬ2 ^3c5.’ Then I have one pawn for the ex- change. I can play ...e4, I can play ...f5. 1 would go for this after one second, for sure.’ ‘I love this kind of exchange sacrifice. But the question is if it is good. Jacob wants me to analyse well, and 1 am trying hard to be a good boy. This is difficult. I have never been a good boy in my life.’ ‘Alright. So, if he just consolidates he will probably be ok.’ The other possibility might be taking on d3 and following up with ...^3d7, and put either the bishop or the knight on c5. Black should be ok. Not worse at least. But is he a little better. So maybe this as well.’ ‘But 1...^3xe4 2 Wxc2 Hxc2 3 JLd3. Hmm. Looking for other moves. 3...Hxf2 4 JLxe4 JLc5 5 ^hl.’ ‘Hmm.’ ‘1...^3xe4 2 Wxc2 Sxc2 3 JLd3 £1c5. No 3...Sxb2 4 йхЬ2 £ic5 and then ...f5. I can play ...e4, the king to f7-f6. It looks great.’ Take on e4, take, take, take, take ...’ (pause) ‘Yes I like that. Sacrifice!’ ‘Another other possibilities? What are the possibilities?’ ‘l...Wa4 2 f3. He can always play the move 13. 2...Sc2 does not make any sense.’ ‘I...£kl7 of course, but somehow I does not like this. 2 Sbcl, sorry no, the bishop.’ ‘But still l...?ixe4. It looks most ap- pealing. 2 Wxc2 2xc2 3 JLd3 Sxb2 4 Sxb2 ^cS. There are no additional pos- sibilities as far as I can see. 3 JLd3 Sxb2 4 Sxb2 ^3c5. What happens after 4...<?3c5. He plays 5 JLc2, then the rook on b2 looks a bit misplaced. So maybe 5 Jlfl, then 1 play 5...f5 and put the king on f6.’
‘He can of course play 6 f3 and follow with g4 in order to play on the kingside, but I have moves like ...Eh8. I cannot really see what White is doing in that position. Black must be better.’ ‘But I have never been very materialis- tic. Not in my political views, not in my life.’ ‘I seem to lose focus now. Hmm.’ Time up! 1...&xe4. Peter Heine Nielsen ‘1 think I have seen this position before as well. This time I have also seen the solution! (Peter here referred to exercise 2, where seeing the position before did not help him at all!)’ ‘I will evaluate it as if Black strategi- cally has some problems, though I can- not say how serious they are. It is not completely obvious that White has a kil- ler blow, were he to move.’ “The solution I remember is l...£)xe4 2 Wxc2 Exc2 3 JLd3 Exb2 4 Sxb2 ?ic5, and it seems to be a satisfying solution to the problems Black is facing now. He can hardly be in any problems after this. My evaluation is that he has good play for the exchange. But if it is advantage is a bit hard to say. With a bad light- squared bishop it could be possible that the position is actually promising, but after all there is a double pawn on the b- file. But I cannot believe that it is prob- lematic for Black.’ ‘An alternative I would consider is to double the rooks on the c-file with a move like l...Bc7 or l...Ec5.’ “What would be the problem of play- ing l...Sc5!?. A tactical point with l...Sc5 could be 2 Wxc2 Exc2 3 JLd3 Ed2 with counterplay.’ ‘His problem is that 2 Eel is never possible, as the JLb2 is hanging.’ ‘Desperate measures as f2-f4 should be considered, but even ...Ef8-e8 works against this. So I cannot really see a posi- tional threat for White here.’ ‘1 would like to play the exchange sac- rifice, mainly because this is what I re- member, but I am not really certain that White has an advantage if it is not played. But on the other hand then the exchange sacrifice is certainly promising, and 1 would actually think that Black has the best practical chances. And after doubling the rooks on the c-file there is nothing resembling winning chances, so l...‘$3xe4 is definitely a try for the full point.’ 1 ...£lxe4 executed.
Ivo Timmermans Ivo’s answer to this exercise is taken from the email he sent me in 2002, when he participated in my positional training program. This program is illustrated in the book Excelling at Positional Chess, where this exercise is also to be found. ‘Structure: Open c-file, pawns on the queenside fixed and static. White can in the long run steer for breaking with £2-f4 to activate the JLb2. Black has an excel- lent outpost on c5 and can possibly at- tack the centre with ...f7-f5.’ ‘Activity: The exchange of queens seems inevitable and an attempt to avoid the swap by l...Wa4 2 f3 puts Black’s queen in an awkward position. Black would like to move into an endgame if he can stabilise the pawn structure. Oth- erwise the white bishops become too active. Ae2 is the worst piece on the board.’ “The logical move is 1...4lxe4 hitting the basis of the pawn chain. This se- quence is forced: 2 Wxc2 Дхс2 3 JLd.3 ПхЬ2 4 йхЬ2 ^Зс5.’ ‘Whether White covers the bishop or retreats it, Black continues with ...4ld7 to put the bishop on c5. Maybe Black plays ...f7-f5 prior to putting the bishop on c5. A position has occurred in which White has a horrible bishop and two inactive rooks. It is very difficult to find a plan for White. He will have to try to obtain activity on the kingside. In the meantime, Black plays ...f7-f5 and plays the king to d6 covering the invading squares and attacking d5. Black has active light pieces and dominates the centre. Additional fact is that the pawns on the queenside are difficult to defend for White. Black has all the fun.’ 1...^xe4 (20 minutes). Artur Yusupov ‘Artur was uncertain about the evalua- tion of the position, but thought that Black at worst was very slighdy worse. He decided on 1...^3xe4, aiming at the exchange sacrifice, with the explanation that it was simply too tempting. He was not sure that Black was actually better after this, but the mere attraction of the playing the position arising from the ex- change sacrifice was enough for him to go with it.’ 1...^xe4.
Proposed solution Test Position 5 Miles-Korchnoi Lugano 1989 Queen's Gambit Declined 1 4}f3 e6 2 c4 2rf6 3 d4 d5 4 £>c3 ie7 5 Wc2 sLc6 6 e3 0-0 7 a3 dxc4 8 Ixc4 id6 9 b4 e5 10 d5 2ie7 11 Ab2 aS 12 b5 £f5 13 e4 Jkg6 14 fth4 <53c8 15 £)xg6 hxg6 16 £ia4 2>b6 17 -!xb6 cxb6 18 Ec8 19 Wd3 Wc7 20 0-0 Wc2 21 Sfb1 Exb2 Too optimistic is 23...ZLxf2 24 JLxe4 JLc5 25 ФЬ1 f5 26 JLd3 e4 when White should have the advantage after 27 Jtc4! He8 (27...f4 28 d6+ ФЬ7 29 JLe5 seems to be winning for White) 28 a4 e3 29 JLc3 and the passed pawns cannot fully compensate for a piece. In this position compensation is the best Black can ever hope for, which is contrary to the ex- change sacrifice where White is trying to equalise. 24 Sxb2 5ic5 In this position Black has many good moves, and most have been mentioned above by the players. 21...Дс7 is proba- bly the best non-committal move. How- ever, this exercise is, in my point of view, quite simple. The JLe2 is not very strong and has little potential, while the JLb2 is White’s best minor piece. Therefore the exchange sacrifice in return for a big cen- tre is quite logical. An important point here is that opposite-coloured bishops is a big plus when we are talking about ex- change sacrifices. Probably something that could help improve Fritzs evalua- tion of the position. 21...&xe4! 22 Wxc2 Sxc2 23 £d3 Black already has compensation and is perhaps even a little better. Either way, the position is harder to play for White in practice. Neither his bishops nor his rooks have any good squares. The game now continued: 25 £c2 Sc8 The alternative try 25...f5!? is possible, but this might give White a sense of pur- pose, as the pawn chain can be attacked with £3 and g4, and in this way revitalis- ing the JLc2. So Black is doing the logical thing: First improve your strongest piece! This is the endgame and these things count!! 26 Se1 ?3d7 27 a4 <£f8 28 g3 f5 29 f3 &f7
30 Фд2 30 g4!? was more optimistic, but White still seems to have too little poten- tial activity. ЗО...Пс4 31 Ha2 2>f6 32 Hd1 Фе7 33 Hd3 ФЬ7 34 Hd1 2c5 35 £b3 Zc3 36 £c2 жс5 37 Sd3 Sc4 45 Zcc2 *?ie3+ 46 ФЬЗ 2>xc2 47 Zxc2 Eb4 48 Sa2 id4 49 Фд2 ФЬ2 50 h5 ФЬ4 51 Ф42 ФсЗ 52 ФеЗ ФЬЗ 53 £f7+ Фс2 54 g4 ФсЗ 55 Фдб Фс1+ 56 Фе2 Фд5 57 if 5 Zd4 58 Фдб ФЬ4 59 Af5 Zd3 60 Фе1 38 d6 е4 39 fxe4 fxe4 40 ФЬЗ Sb4 41 ПсЗ Фxd6 42 Ь4?! Фе5 42...£d4! was stronger. 43 £f7 Zb1 44 £xg6? Here 44 ФЬЗ! <2kl5 45 Zc4 kept the disadvantage to a minimum. 44...&d5 Now Black is just much better. 6O...Hd4 Easier was 60...Ha3! 61 йхаЗ ФхаЗ 62 JLxe4 Фха4 63 Ф01 ФЬЗ 64 JLc2+ ФсЗ 65 JLa4 ФЬ4 66 JLc2 а4 winning. 61 Фе2 еЗ 62 ф{3 Zf4+ 63 Фд2 2d4 64 ФТЗ ФЬЗ 65 Ха1 Zf4+ 66 ФдЗ Hf2 67 Фв6+ ФсЗ 68 Пс1 + ФВ4 69 ФИЗ е2 70 ФдЗ Zf1 0-1
CHAPTER EIGHT Test Position 6 with the king I have 2 Ф?3.’ Test Position 6 White to move. Take 8 minutes to find the strongest continuation, talking into a microphone or writing down your thoughts afterwards. Sten Vesterli The problem is obvious. Black has a pawn more, a passed pawn on the move. Then he has a doubled pawn.’ ‘I also have a passed pawn, but it is backward.’ ‘My first thought is 1 Sb8. Then he will protect it with the king.’ ‘1 Hb8 at least prevents him moving the pawn immediately. If he protects ‘But he can put his rook on f5 in order to protect all the pawns. This rules out 1 Hf8 as well. But not 1 ...Hd6 2 s£?£3.’ ‘He wants to put his rook behind the b-pawn and I want to put my rook in front of the pawn, but can I make it all the way around?’ ‘1 am further behind with my h-pawn.’ ‘1 Hb8 (pause) Фс4 2 ФЬЗ Hd4. (pause) 3 g.3.’ The question is if I should try to get around with the rook, but it will take a lot of time. There seem to be no tempi to be won. 1 Sc8 does not stop the b- pawn.’ ‘It will have to be 1 Sb8 in order to
stop the pawn. My king cannot make it.’ ‘I also have 1 g3. He cannot play If he takes and I take with the king, he has 2...Hg5+. Hmm.’ ‘An alternative to 1 Hb8: 1 Sh4. Then he can make it with the king. No 1 have to use to the rook to stop the b-pawn. If I can stop his pawn, then my own pawn will be on the move.’ ‘I cannot fear the f-pawns. It will have to be 1 JIb8.’ ‘1 g3 fxg3 2 <i’xg3 gives him an extra passed pawn.’ It will have to be 1 Sb8. Sidsel Heeg This should be easy. I know from a smart guy down my chess club that rook endings are always drawn (Tarrasch’s old statement). So it cannot be too difficult, but...’ ‘At first it seems like a good idea to activate the rook. Black’s rook seems more active, and he also has a passed b- pawn. It is ready to run.’ ‘Black’s king is more centralised. His rook is more centralised. Maybe Black can cut of the white king from reaching the black pawn, (long pause)’ ‘It looks rational to get behind the black b-pawn with the rook before Black puts his rook behind the pawn. Maybe then there is a chance to get over there with the king.’ To run with the h-pawn does not look right The black pawn is further advanced.’ ‘Another idea is 1 Hc8 in order to pre- vent the black king from assisting the pawn.’ (long pause) ‘It seems like a good idea to play 1 h4 with the idea to prevent ...Sg5, so as to free the white king from the defence of the g-pawn. As long as the white rook is where it is it protects the h-pawn.’ (long pause) ‘Probably 1 h4 is not so stupid. It cannot matter much if the h-pawn be- comes weak. If it is possible to exchange it for the b-pawn, everything would be fine. Black’s extra pawn is after all a
doubled f-pawn.’ ‘If it was possible to arrange this ex- change and block the doubled pawn...’ Time up. ‘I would probably start with 1 Hb8, but I also considered 1 Sc8 and 1 h4.’ ‘I choose 1 Hb8 because it looks like it is the move that pays most attention to the b-pawn.’ Jesper Hall ‘Oh no, not a rook ending. I hate these rook endings, just so you know.’ ‘Okay, he has a passed pawn. He will most certainly have a plan involving pro- moting this pawn. I have problems as my king is a bit too far from the pawn. It looks as if I will have to sacrifice my rook for the pawn and try to get com- pensation with my own h-pawn, and in that way make a draw. But the question is how.’ ‘Л normal move seems to be 1 Фй to me, to get the king to grab the pawns, in order to get counterplay on the kingside. I think that after 1 ^£3 he will play. Hmm. Maybe he can start by just helping the b-pawn with the king, but there are also 1...Фе5, which looks a bit odd. What position would he like to have. I don’t know.’ ‘He has a very nice rook on d5,1 must admit. 1 <&>f3 then 1 ...b4, just pushing the pawn, (pause)’ T Ф13 Sf5 2 <i’g4 Hg5+. It is not so easy actually.’ “Which other possibilities do I have besides 1 Ф13. There is always 1 h4 to just run with the pawn, but it looks too slow. He might just play l...b4, threaten- ing to play ...Sb5. It looks wrong.’ ‘What else. 1 Hf8. Maybe. That might be possible actually. Is 1 Ef8 a good move. It might be. But l...Ztd6 looks good. Aha, maybe he can play 1 Hf8 Фе4 2 Exf6 Sd2+ 3 ФН, maybe then 3...b4.’ “That looks dangerous to me.’ ‘1...Фе4 2 Se8+ Фй 3 Sb8. Maybe 1 Sf8 is the best move after all. If he pro- tects with 1...2d6 1 can play 2 Ф13. Maybe that is the best move, 1 2f8.’
‘It is hard for him to make progress.’ ‘1 Ш8 b4 2 Hxf6 b3 3 Hxf4+ ФсЗ.’ “That might be dangerous too. Maybe 1 Hb8 and then later Hb6.’ ‘1 Hb8 is of course another option.’ Time up. 1 Sf8,’but 1 am not sure that it is the best move.’ Peter Skovgaard Well, the task here is to stop the b-pawn and to promote one’s own h-pawn. The problem is only how.’ ‘Maybe it is possible to play 1 Eb8 to get behind the pawn. But maybe it is more important to take his f-pawns. Maybe 1 Sh4 Ь4 2 2xf4+ ФсЗ 3 Sxf6 ЬЗ’ ‘4 Sc6+ Ф^2 5 Sb6 ФсЗ 6 g4 Ь2. Probably 5...Фс2 was preferable.’ ‘Yes, it was. 6 g4 b2 7 h4 bl'tf 8 Sxbl ФхЫ 9 h5 Фс2 10 ФеЗ ФсЗ И Ф£4 ФЬ4 12 g5 Фс5 13 h6 and he will not be able to lose.’ ‘But maybe there is something better?’ ‘After 1 Hh4 he might be able to play 1...Фе4 to protect the pawn, but what then against 2 g3.’ “Then he can play 2...Sf5.’
‘So maybe 1 Ф£3 first, then l...b4 2 &xf4 ЬЗ 3 ДЬ8 ФсЗ 4 g4’ ‘and 4...Фс2 5 Ь4 b2 6 h5 blW 7 йхЫ ФхЫ 8 h6 Фс2 9 h7 Hd8 10 ФВ Фаз И Фх£6 Фе4 12 g5 ФГ4 13 g6 - it looks like it is even winning.’ “But maybe he has other options.’ ‘1 ФВ. 1...ДВ maybe. Maybe then 2 i)g4, no 2...Hg5+.’ ‘1 ФВ Hf5 2 h4 b4 3 Фg4. It looks pretty ok.’ ‘1 ФВ Фе5 then 2 h4, and my rook will easily stop the b-pawn.’ ‘1 ФВ forces l...b4 then. So 2 Фх£4 then maybe 2...Фс4 3 g4 I will play. Then after 3...b3 4 Eb8 he might play 4...Hb5 5 Sc8+ ФЬ4 6 Scl b2 7 Hbl ФЬЗ 8 h4 Фс2 9 Hxb2 ФхЬ2 10 h5 Фс2 11 h6 ФОЗ 12 h7 Hb8 and then I can play...’ ‘1 ФВ b4 2 Фх£4 Фс4 3 g4 ЬЗ 4 Hb8 Hb5 5 Sc8+ ФЬ4 6 Пс1 Ь2 7 Hbl ФЬЗ 8 h4 Фс2 9 НхЬ2 5хЬ2 10 Ь5 Ф03 И Ь6 Фd4 12 h7 Hb8’ ‘13 ФВ Ф05 14 Фх£6. Yeah.’ 1 ФТЗ. Ivo Timmermans “This is a rook ending where White is a pawn down, which is not that bad, as it is a double f-pawn. The real worry is the fa- pawn, the passed pawn Black has, which is supported by his king. This means that White will have to either go with his king to the queenside, which is not likely, or that he will have to seek counterplay on the kingside and then later sacrifice his rook for the b-pawn.’ ‘1 /it me just start by looking at what Black is threatening. The obvious threat is ...b4 and ...Hb5. 1 want to keep my rook active as White, so I should not allow that. Another threat is possibly ...Hc5 and ...ФсЗ, trying to support the pawn. It takes four moves for the fa- pawn to queen. It takes 1-2-3 moves to support it (Ivo here talks about getting the king to the first rank, 1 suppose - J.Aa.). So it is more likely that he plays ...Фс4, ...b4 and ...Hc5, if possible.’ ‘Now what is my plan? With my king I
could go for the f-pawn. 1 could for in- stance play 1 Ф£3. Another plan for Black, which I think I should mention, is ...Фе4 and then ...Sd4 and ...b4, playing on both wings. So my plan is to seek counterplay on the kingside. I think that if I move my king to the queenside I will have problems.’ “There are some candidate moves. First of all a king move could be interest- ing. 1 Фе2 to go to the queenside. 1 Ф13 to pick up the f-pawn, and try with g4 and h4 to create a passed pawn. Then there are also rook moves. There is 1 Hh4, but looks a bit silly. 1 will look at that in a minute. 1 Ec8 is possible to cut off the king. 1 Eb8 is also a possibility to be considered.’ “Now let us start with the rook moves, as they appear to be more interesting.’ ‘Now first, 1 Ec8. What can Black do? Either l...b4 or 1...Пс5. Let me look first at the pawn ending — should I exchange rooks. With the pawn on b5 it takes 4 moves to queen. The h-pawn is relatively unthreatened. And also the black king has problems getting to h8. So I can play 1 Ec8 forcing... Hmm. But then of course Black does not play l...Hc5, but l...b4.’ ‘Passive defence is not very attractive then. Though I could play Ф13 and Eel. If he plays ...Eb5 then I can always give a check later on and take the pawn. A check on dl or el and win the f4-pawn, which immediately gives me some op- portunities with the passed pawn on the kingside. So 1 Ec8 is a serious move. Let me just check 1 ...Ec5 2 Exc5 Фхс5 3 h4 ah, 3..^d6 is winning.’ ‘4 Фе2 Фd7 5 Фd2 Феб 6 Фс2 ФВ is winning for Black. So I cannot exchange rooks. 1 Ec8 Ec5 and then ...ФсЗ and Black is close to winning.’ T Eh4 aiming to take on f4 with check is another idea. 1 ...Фе4 2 g3 Ed2+, no, this is not a good line.’ ‘Also l...b4 2 Hxf4+ ФсЗ 3 Exf6. Aha, this is actually two pawns. I should be able to hold this if I can sac the rook. So what do you do? I...b4 2 Exf4+ Фе5 3 Exb4, so 1...Фе5, then maybe I have a check on h5, 2 Eh5+, but it is a lot of rook moves just to get the king back. 1...Фе5 2 Eh8 and Black has to start playing more slowly with 2...b4 and 3...Ed4’ (presumably after the move 3 Eb8-J.Aa.). ‘So after 1 Hh4 the critical move is probably 1...Фе4. I then play 2 g3 then he has 2...Ed2+. I will play 3 Фе1 then З...ФеЗ and 4 Exf4.’
“That should be a draw as well. So 1 Sh4 should be an attractive move. There are silly moves like l...Hf5. Hmm.’ “Then I can play 2 Фе2 or 2 Ф13. This is a bit silly. So let me look at the king moves. They arc probably a bit more useful.’ ‘1 <&>£3 is interesting, simply trying to play 2 Фх£4. Can you defend the f4- pawn. No, not really. 1...Фе5 2 Де8+, I think, no, 2 Hh5+ £5 3 Sh8 and then Black has a problem.’ ‘1 Ф£3 Фе5. It is a bit...’ ‘So l...b4 is the move, of course. 2 Hb8 Фс4 followed by ...ДЬ5. 3 h4 Sb5, that’s got to be a mess.’ ‘1 Ф13. He cannot defend the f-pawn, so I should go with the b-pawn, which is met with 2 Hb8 ФсЗ and then if 3 Фх£4’ ‘then he has 3...Hd4+ and ...b.3 and ...Hb4, winning a valuable tempo. So 1 Ф13 is probably not good.’ “What I can do is probably 1 Фе2, but then 1...Фс4 is strong.’ Time up! ‘I have not looked at 1 Hb8 so far, which might be interesting. I have looked at the candidates 1 Hh4, 1 Hc8, 1 ФВ and 1 Фе2. I like 1 Hh4 best, but it looks like a silly move.’ 1 Hh4 executed. Tom Skovgaard ‘So White is one pawn down in a rook ending. However Black has a doubled pawn, but still a remote passed pawn on the b-file. Л very annoying pawn. Black’s position looks strong. Our only hope is the h-pawn, 1 think. The king is close to one of the f-pawns. So if we could win the b-pawn, we would have an easy draw, but of course he can protect the fa- pawn with the king. We probably need to play actively here, probably with the h-pawn, if we are not just to lose here. So, is there anything we need to prevent here? Or should we just move the pawn to h4? h4-h5-h6-h7. One-two-three-four. Black goes down to queen. He can move his king to c4, so when I put my rook on b8, he can put his rook at b5. And then he will queen easily.’ ‘Can we bring the king to the b-pawn? No, he will just play 1...ФсЗ. That looks bad. The king will just be cut off.’ ‘Maybe we need some initiative. 1 Eb8 is obvious, but it docs not threaten any- thing. 1...Фс4 and Black wins, probably. Maybe 1 Sh4 threatening to capture the f4-pawn with check? What can Black do?’ ‘1...Фе4 or l...Sf5?’
“The rook blocks our pawn. It does not look right. We can play 1 Ф13 and take the f-pawn, but he wins the race. 1 Sb8 looks right. Maybe we can move the rook round to the a-file? 1 Sa8-al-bl. No.’ ‘Ok. T>et us take the line. 1 h4 b4 2 Sb8 Фс4 3 Sc8+ Ф-somewhere 4 Scl’ ‘4...b4. No, that’s already played. 4..ФЬ2 5 Shi ЬЗ 6 h5 Фс2 7 h6 b2 8 h7 Sd8.’ “This is complicated.’ ‘Once again. 1 h4 b4 2 Sb8 Фс4 3 Sc8+ &d3, of course, 4 Scl ЬЗ. This looks bad. This is a bad line. Now he is winning. 1 h4 b4 2 Bb8 Фс4 3 Sc8+ &d3 4 Scl ЬЗ.’ ‘Nothing.’ ‘So maybe we need to move the king anyway to prevent ...Ф^З. No, it cannot be true. This looks hopeless.’ T h4 b4 2 Sb8 Фс4 3 Ec8+ &d3. Is there anything here. Oh yes. З...ФМЗ 4 Sb8. He needs to return to the c-file with his king. 4...ФсЗ. And then. 5 Sc8+. Okay. So he needs to go to the b-file. 5...ФЬ2. No. We cannot advance the h- pawn. Let us take the other line.’ T h4 b4 2 h5 ЬЗ 3 h6 b2 4 Sb8 ФсЗ 5 h7.’ ‘Now maybe we will make a draw, tak-
ing each other’s pawns. So Black needs to improve somewhere. 1 h4 b4 2 h5 b.3 3 h6 Sh5 4 ДЬ8. No. 4 h7 and he cannot find shelter from the check. This is great, we have a draw. I think simply advancing the pawn down the h-ftle is right. Yes.’ Tom went for 1 h4. When we played through the line af- terwards, Tom at first went for l...b4 2 h5 b3 3 h6 2h5 4 h7 b2 5 Sd8+ ФсЗ 6 h8W?? but immediately understood his mistake. Peter Heine Nielsen “White is in obvious problems. My task will be to try to find a way to make a draw. The trump you’ve got is the h- pawn. (pause)’ ‘My first idea would be 1 Ф{3,’ ‘as I think it would be a good idea to take the f-pawn, as the drawing resources would increase once White has an extra pawn on the kingside. Of course it could be said that it is in no hurry to go for the f-pawn, but it could also be hard to find another good move.’ ‘It could be possible to play 1 Sb8’ ‘where I presume that 1...ФсЗ or maybe even 1...Фс4 is not something you wish for. But then of course 2 ФЕЗ is possible.’ ‘On 1 Ф13 then l...Sg5 should also be considered, with the intention of playing 2...Sg3+. Then maybe I can attack the other f-pawn, so maybe that is less rele- vant. But that is just brain storming.’ “The most logical move should be 1 Sb8, as I see it, though 1 am not com- pletely confident playing it. But let us at least calculate it.’ ‘1 ДЬ8 Фс4 2 ФfЗ, maybe, and now I would think that 2...b4 3 ФхЕ4 ДЬ5 4 Дс8+ ФdЗ would work for White. It looks like you arc in time with your counterplay, but of course the lines are very sharp. So it should be evaluated accurately.’ ‘But again, playing 1 Sb8 directly is maybe not that important. But 1 Ф£3 b4 (pause) then I would probably have 2 ФхЕ4 as I have 3 Sd8+ and 4 Hdl (on
2...Hb5 -J.Aa.).’ ‘Another move which you could typi- cally consider is 1 Sc8 to cut off the king, but l...Hc5’ ‘So if 1 h4 works tactically...’ (pause) ‘On 1 h4 1 begin to fear a move like 1...Фе4, because I cannot see a problem for Black. So 1...Фе4’ (long pause) ‘and it seems as it only helps Black.’ Then there is also the possibility of advancing the h-pawn immediately with 1 h4. Then l...b4 looks like the logical choice. You have to continue what you have started with 2 h5 b3 3 h6 b2 4 Sb8 ФсЗ. This seems to work. 5 h7 Sh5’ ‘I am leaning towards playing 1 h4 currendy. Due to reasons of principle it is a move I do not feel comfortable with. But I am uncertain about the other posi- tions, with the rook on b8.’ ‘My point is that if I have a pawn on h7 and he has his rook on h5, then even if he gets his b-pawn close to the promo- tion, I will continue to be able to check him and harass his king, and if he ever departs from the b-pawn, I will be able to exchange my h-pawn for his b-pawn, and this will be a draw. So after 1 h4 I cannot see any other way for him to play for a win. For example 1...Фе4 2 h5 Sd2+ 3 ФН f3 4 gxf3+ ФxfЗ 5 Фе Г ‘and then it should be possible, as far as I can see, to give a check, and then it is a draw. 6 Hc8+ seems to be rather much a draw, because it is always possi- ble to threaten the b-pawn. So this could of course be a tough try at saving the position, so let us calculate it. (pause)’ ‘1 h4 b4 2 h5 b3 3 h6 b2 4 Sb8 ФсЗ 5 h7 Eh5 6 Sc8+. This position is a draw.’
‘and though the position could be won, I still have the resource of exchang- ing one of the pawns to get a rook end- game which is drawn, though I do not feel completely confident about it.’ “Typically I would use more time to calculate 1 Sb8, but with short time at my disposal I would probably go for 1 h4.’ Fritz 8 When looking at this position Mathias explained me the difference between moves to mate and moves to conversion into another winning position in the ta- blebases. Because of the 50-move-rulc moves to conversion is sometimes more important than moves to mate.’But the customers prefer moves to mate, so that is what we go for.’ This is a typical position where Frit^ manoeuvres around avoiding pushing its advantages (for Black) here, in order to avoid a forced draw. After 5 minutes Frit^ is stable on the line with 1 h4 b4 2 h5 ЬЗ 3 h6 after which Black invents all kind of strange things in order to avoid a draw. For the first 1 min. 13 seconds it prefers 1 ДЬ8, but eventually comes around to a stable support for 1 h4. Artur Yusupov Artur had two main candidates, 1 Hb8 and 1 h4. He started calculating 1 h4 and quickly ended up the line given above a few places: 1 h4 b4 2 h5 ЬЗ 3 h6 b2 4 ПЬ8 ФсЗ 5 h7 Hh5 6 Sc8+. Without finding flaws in this line he was convinced that it was right and that the position was drawn in this way. 1 h4 Proposed solution Test Position 6 Salov-Gligoric Belgrade 1987 Nim^o-Indian Defence 1 d4 £)f6 2 c4 еб 3 ^сЗ ДЬ4 4 e3 c5 5 Ad3 <^c6 6 2>ge2 d5 7 cxd5 exd5 8 0-0 0-0 9 a3 cxd4 10 axb4 dxc3 11 b5 <?3e5 12 2ixc3 Wc7 13 Фе2 Zd8 14 Za4 b6 15 Zd4 ФЬ7 16 f3 Паев 17 Wa4 2ied7 18 Zfd1 £c5 19 Wa3 h6 20 £f1 Ze8 21 £ie2 Ze5 22 Hh4 We7 23 b4 ^cd7 24 Wxa7 ^e8 25 Hh3 ^d6 26 Wa1 Sa8 27 Wb1 2ixb5 28 Wb3 Zc8 29 Hg3 Hc4 30 £d2 ^d6 31 2id4 Hc8 32 e4 Zh5 33 £f4 4he5 34 exd5 Wf6 35 ФеЗ &ec4 36 £f2 Axd5 37 Wb1 Ze8 38 Wc1 Zc8 39 Ze1 Ze5 40 Zxe5 <?fxe5 41 Wd2 JLc4 42 Фхс4 £>exc4 43 Wc1 (he5 44 Wd2 2>d3 45 Wxd3 Zc1+ 46 Фе1 Zxe1 + 47 &f2 Ze5 48 £>c6 ^e4+ 49 Фд1 Wxc6 50 fxe4 Zxe4 51 Wd8+ ФИ7 52 Wd2 Wc4 53 Zf3 f6 54 Wd7 Ze1 + 55 &f2 We2+ 56 ФдЗ We5+ 57 &f2 Ze4 58 Wd3 f5 59 h3 Фдб 60 Hg3+ ФИ7 61 Zf3 h5 62 Wd7 Фдб 63 Wc6+ Wf6 64 ПдЗ+ ФИ6 65 Wxf6+
gxf6 66 Sf3 Фдб 67 Sg3+ Ф17 68 Sf3 Феб 69 Ь5 Sb4 70 ФдЗ h4+ 71 &f2 f4 72 Sc3 Sxb5 73 Hc8 2d5 74 Sh8 b5 75 Sxh4 Феб 76 ДИ8 Фс!4 go deeper into that here. As we shall see later Salov’s mistaken belief that this was a way to get a draw is easily forgiven. Another serious attempt to make a draw is the less than obvious move 77 Hh4!?. This move proved difficult to analyse correctly and though I have a good feeling about the following analysis, I would not want to deceive anyone and call it conclusive. I believe that Black wins, and in only one way, but I am only 95% convinced. Anyway, here are the lines: a) 77...Hf5 78 g4! Sc5 79 <&f3 b4 It is not difficult to find White’s objec- tive. Being a pawn down in a rook end- game hardly ever leaves you wishing for anything else than a draw. And especially here, where Black has such a beautiful passed pawn. However defending the position to a draw is difficult, and good tries have shown to come short. In the game Salov tried to equalise the material with 77 Ф13? but soon got into trouble after 77...b4 78 *xf4 b3 79 Hb8 ФсЗ 80 Sc8+ ФЬ4 81 Пс1. The game is con- tinued in Test Position 9, so we will not 80 Sh6l! (80 Sh8 b3 81 Sb8 ФсЗ 82 h4 b2 and wins) 8O...b3 81 Sxf6 2b5 82 Sd6+ Фе5 83 Sdl b2 84 Sel+! (84 Sbl Sb3+ 85 Фй2 Фd4 86 h4 Hg3+ 87 Ф£2 ФсЗ) 84..Ф^4 85 Hbl ФсЗ 86 Фxf4 Фс2 87 йхЬ2+ ФхЬ2 88 h4 ФсЗ 89 h5 Фd4 90 g5 Фd5 91 Фf5 with a draw. b) 77...b4 78 Sxf4+ ФсЗ 79 flxf6 (79 fif3+ Hd3 80 Sxf6 b3 81 Sc6+ Фd2 82 Hb6 Фс2 83 h4 b2 84 Sxb2+ ФхЬ2 and Black wins) 79...Sc5! (79...b.3 80 Ec6+! ФЬ4 81 Йс1 Ь2 82 Sbl ФсЗ 83 Ф13 Фс2 84 йхЬ2+ ФхЬ2 85 Фе4 Sh5 86 g4 Sxh3 87 g5 Hg.3 88 Ф15 ФсЗ 89 g6 Фd4 90 Фйб) 80 Hb6! (80 g4 b3 81 Sb6 b2 82 ФgЗ Sc4 83 fixb2 ФхЬ2 84 Фк4 ФсЗ
85 Ф04 86 Ф£6 Фе4 and Black wins) 8O...b3 81 Ф£3 b2 82 h4 Sc4 83 ДхЬ2 ФхЬ2 84 g4 ФсЗ 85 h5 and Black cannot make progress, as 85..?&d4 86 Ф£4! secures the draw and 85..ФЬ4 86 h6! is actually starting to get a little dangerous for him! с) 77...Фс5 78 fih8 2d2+ 79 Ф£3 Hd3+ 80 Ф£2 b4 81 ЙЬ8 b3 82 Hb4 and I cannot see how Black should be able to win this. d) The right move is 77...Фе4! 78 g3 Sf5 (78...Sd2+ 79 Фе1 ФеЗ 80 Sxf4 Hg2 81 h4 2xg3 82 2x£6! and White draws) 79 Фе2 b4 80 &d2 b3 (80..ФВ 81 gxf4 Фё3 82 Hh6 Hx£4 83 h4 and White makes a draw) 81 ФсЗ ФеЗ 82 gxf4 Sb5 83 ФЬ2 f5! Black has lost his extra pawn, but for activity. And the pawn is soon regained. 84 2h8 &xf4 85 h4 Фд4 86 h5 Фд5 87 h6 (87 Sh7 f4 88 Hh8 f3 and Black wins) 87...Фд6 88 Фс1 Ь2+ 89 ФЬ1 Фд5 90 h7 Фдб 91 Sf8 ФхЬ7 92 Sf6 Фд7 93 Нсб ДЬЗ 94 Sd6 f4 95 Hd4 f3 and Black wins. 77 Sf8? does not work on account of 77...b4 78 Hxf6 b3 79 Hxf4+ ФсЗ 80 Hf8 b2 81 Sb8 Sd4 82 Sxb2 ФхЬ2 and Black wins. I jkewise with 77 Eb8?. After 77...ФсЗ it is not possible for White to run with his h-pawn anymore, so his only choice seems to be 78 Ф£3
b4 79 &xf4 b3 80 Sxc8+ ФЬ4 81 Eel, transposing to the main game and Test Position 9. 77 Ec8? is well met by both 77...b4, and the more devious 77...йс5! simply improving the black position without wasting any time at all. ‘Passed pawns should be pushed!’ 1 often felt like shouting to the chess-test- dummies (though there is nothing dumb about any of them; this expression cov- ers what they were doing). The right so- lution is to gain counterplay with the h- pawn quickly, before the rook goes astray in combat. The right line is there- fore: 77 h4! b4 78 h5 b3 79 h6 b2 80 Eb8 ФсЗ 81 h7 Hh5 And now White can continue to give checks, as Black cannot hide his king on bl due to h8W winning. Therefore the position is an immediate draw after 82 Ec8+.
CHAPTER NINE Test Position 7 Test Position 7 White to move. Take 5 minutes to find the strongest continuation, talking into a microphone or writing down your thoughts afterwards. Sten Vesterli ‘Materially there is balance. Pair of bish- ops against knight and bishop. More space on the queenside. 1 have a good pawn chain. His knight is stuck. It needs to retreat to get into the game, via d7. Then he would threaten my b-pawn.’ ‘His rooks are connected, mine are not. My king is exposed on d2.’ ‘If he takes on cl, then the king recap- tures, then check. Then I lose a tempo.’ ‘1 am interested in getting my rooks connected and getting my bishop into play. It must be on the queenside I have to attack.’ ‘If I capture his rook first then I lose the open file. I can then play the rook to cl to exchange the rooks. 1 would then still have the pair of bishops. Maybe a pawn move, he would not be able to do much about that.’ ‘If I played 1 b4?!. He is not really threatening anything. I do not feel myself under attack.’ ‘1 could put my bishop on c4 in order to prevent the exchange of rooks. He has no reason to give up the exchange in order to get rid of that bishop. 1 JLc4. What then? l...£kI7 for example. Then he is hitting on my pawn.’ ‘If I take first.’ (long pause) ‘It must pay off to take on c8.’ 1 Sxc8 executed and replied with 1 ...Sxc8 then 2 JLxa7 Sa8. Sten said he had not calculated this far, only seen that he could take the pawn. Now he realised he would lose the a2-pawn as well, and it was merrily an
exchange of pawns he had engaged in. ‘I am not that happy with this posi- tion. 1 have two bishops, but the Ле2 cannot really get anywhere right now. And e5 is a really good square for the knight.’ Peter Skovgaard ‘Black’s knight is not so well placed, but it might go to d7 and e5, and this is pos- sibly something he can prevent with 1 JLb5, which both connects the rooks and prevents l...£k!7, but then maybe he has 1...a6 2£a4 b5.’ Sidsel Heeg ‘White needs to finish his development. He has a weak pawn on b2. At the same time no contact between the rooks, so it would be nice to move the light-squared bishop.’ Taking on b2 is worth consideration.’ ‘Black’s dark-squared bishop could be- come strong. Black has good squares for his knight in the centre to compensate for the two white bishops.’ (long pause) ‘It worries me that there is no contact between the rooks. Black’s pieces are well placed. I would like to get active to compensate for this. Maybe finish the development, or attack on the kingside. (pause)’ Time up. 1 Ae2 ‘It is possibly not so comfortable. And after 3 JLb3 he has 3...^3d7, and it does not look encouraging.’ ‘So what else do I have of opportuni- ties. Ixit me see if I have something after 1 &Ь5 a6.’ ‘Or maybe I can play 1 JLd4.’ ‘No, it does not look good. 1 JLb5 a6.’
(pause) ‘T cannot really find anything after 1 lb5 a6, so this is probably not it.’ (pause) ‘But ...£k:5 is not so dangerous. I will be able to play f4 when it comes. But maybe he will then have ...£3g4.’ ‘So maybe 1 should play 1 $Le2 and on 1 ...£3d7 then 2 b4 protecting the pawn.’ ‘Preventing ...£3c5, and if he plays 2...^3e5 I have 3 f4. And if he just wasted his time 1 can advance my b- and a- pawns. So 1 JLe2. I cannot see anything else. And he does not have that many super moves. So it looks fairly well.’ 1 JLe2 executed. Tom Skovgaard ‘Checking the position ... Equal material; however, White has a pair of bishops. Black has bishop and knight. Two rooks and seven pawns. Symmetrical pawns. Both players have a rook on the c-file. However, we need to move the bishop if we are not to lose the c-file.’ This is principally a bad bishop, but the pawns can move, so maybe not that bad after all. And Black has a strong bishop on g7. The move 1 JLd4 springs to mind to resist the pressure from this bishop.’ ‘However, it does not work because of l...£3xe4+, a combinatorial refutation.’ The white bishop on fl, where can it go? 1 JLd3? No.’ “What can we do here?’ “What happens if l...Hxcl 2 Фхс! Bc8+ 3 <&d2 and we have no problems apart from the b2-pawn, which is weak. We can also move the king.’ ‘1 Sc2 Hxc2 2 Фхс2 Hc8+ 3 ФЬЗ. No, it does not look good.’ ‘But if Black moves his rook maybe his pawns will be weak. Maybe that is a good plan. Maybe 1 Sxc8 Sxc8 2 JLxa7. No he will play 2...2a8 and capture our pawn. It is not good.’ ‘What about his knight. Can we do something on the kingside. 1 g4-g5 or 1 h4-h5. No. The knight goes to d7 where there are several good squares to go
from. Let us not assist him with that. What about 1 JLxa7 now. No. 1...Excl.’ What can we do. Move the rook per- haps?’ ‘Maybe 1 Йс2 Дхс2 2 Фхс2. Maybe it is good. We are even threatening 3 JLd4. 2...Дс8+3 ФЬЗ. No. З...Дс1.’ “That is terrible.’ We need to move the fl-bishop somehow. Oh. Maybe 1 g3. We can move the bishop to h3. Why not. I>et us have a look.’ ‘1 g3 Дхс1 2 Фхс1 Дс8+ 3 ^d2 £k!7 4 ^.h3.’ “This is great. This looks great. This is the right place for the bishop, I think.’ ‘1 g3 ttxcl 2 Фхс! Дс8+ 3 &d2 &d7 4 JLh3 and next we can protect the fa- pawn. This looks right.’ 1 g3 Jesper Hall ‘My first thought is to take on c8 and play g3, to put the bishop on that diago- nal. That is my first thought. 1 Дхс8 Дхс8 2 g3...’ ‘...then he can play 2...£kl7 3 JLh3. There is of course a pawn on a7.’ ‘1 Дхс8 Дхс8 2 JLxa7 Да8. 1 just don’t like. No, 1 like to take on c8 and play g3. It looks normal. The black knight wants to go to d7 and to c5, that is standard.’ ‘1 2xc8 Дхс8 2 g3. Of course I want to fight for the c-file, but what is the al- ternatives. Hmm.’ ‘1 JLe2 £k!7. Pu-hu. 2 b3. Something like that.’ ‘2...^b2.’ ‘1 Дхс8 Дхс8 2 g3. if he plays 2...b6 here I will play 3 JLb5.’
‘It looks very normal to me.’ Take, take, g3.’ ‘I seem to get stuck. But...’ (pause) Well, I cannot see anything else. 1 would go for this for sure. 1 Bxc8 Sxc8 2 g3 to make the black knight bad. 1 would have liked to fight for the c-file.’ 1 Sxc8.’I think White is clearly better at least. The knight will be out of play. If ...e6, then he will have bad pawns.’ Ivo Timmermans 1 think I know the solution. The trick is that White has the bishop pair and queenside pressure, e.g. against a7 which is hanging and which Black will have to do something about. The only open file is the c-file, which he would like to con- trol. Now you control almost all squares of it, up to c7, and the idea is that we do not want to allow Black to play ...Excl, so you will have to either develop the bishop from fl or take on c8.’ “Now another issue is that Black wants to develop his knight to d7 and c5 or e5, and the most logical way to stop this is 1 Sxc8+ Hxc8 and then you play 2 g3, preventing 2...£kl7, because this is met with 3 JLh3. And if you then play 3...Hc7 then 4 JLxd7 Exd7 5 Eel with control over the c-file.’ ‘And the other thing is that after 1 Exc8+ Exc8 2 g3 you will have to waste a tempo on defending a7, probably 2...a6. Just checking. 1 Exc8+ Exc8 2 g3 and after 3 JLh3 you have no sensible squares to go to. If 2...a6 then you have 3...Bc7 when 4 JLb6 is coming,’ ‘which is pretty annoying. And ...Ec4 is always met with b3, so you really have to leave the c-file. If you do it voluntarily after 2 g3 and 3 JLh3, then Eel is com- ing, controlling the position.’ ‘So this is the logical solution.’ 1 Exc8+ Zxc8 2 g3.T think that this must be a winning position for White, as you have pressure on the queenside and you control the open file. You probably have to open the position on the queen- side with a4-a5 and b4-b5, keep your king in the centre. You chase away the black rook from the c-file, you put your own rook on the c-file, but the bishop back on fl and start to put pressure on the queenside, creating entry points. So it should be won.’ ‘Conclusion: It is close to winning.’ Artur Yusupov Artur exclaimed: This is nice! Two bish- ops. I like this!’ Artur quickly deduced that the position had arisen from the
Maroczy variation of the Sicilian. He also immediately settled on 1 Sxc8 Sxc8 2 g3 as the right solution, seeing the same line as Ivo Timmermans, 2...£kl7 3 JLh3 Hc7 4 i.xd7 Hxd7 5 Hcl. His thought pattern was similar to that of Jesper Hall, only it was clear that it was an experi- enced teacher expressing his thoughts. His evaluation of the position was that White was clearly better and should have good chances to win the endgame. Fritz 8 Fri/% almost immediately decides on 1 Sxc8+ Hxc8 2 g3 Hc7 3 JLh3. This does not change. Frit% is wondering whether or not to play 3...a6 or 3...b6 (and even shortly 3...a5). Eventually it settles on 3...a6, after which it thinks that the posi- tion is circling around +1.00. After executing 3...a6 Fritz continues to believe that White is about a pawn better in purely position advantage. 1 2xc8 + Peter Heine Nielsen I believe that this is a game 1 remember from one of Mcdnis’ books, and his point is 1 Дхс8+ Йхс8 2 g3 and 3 JLh3 to threaten Sc8, and then he takes over the c-file, creates some weaknesses, ad- vances the king and creates some weak- nesses. This is how I remember his de- scription. So this is what I want to do. 1 Sxc8+. Proposed solution Test Position 7 The position for this puzzle is known to theory and arises after the following se- quence. 1 e4 c5 2 7+3 d6 3 d4 cxd4 4 2>xd4 £>f6 5 f3 73c6 6 c4 &xd4 7 Wxd4 g6 8 7+:3 Jcg7 9 i.e3 0-0 10 Wd2 Деб 11 Sc1 Wa5 12 73d5 Wxd2+ 13 &xd2 &xd5 14 cxd5 Zfc8 This is probably the easiest exercise of the ten at first glance, as finding the right moves proved easy for all the players with an Elo solidly placed over 2000.
The aim of the position is of course to develop the kingside in the most smooth manner. This means to find the best square for the bishop and the best way to place it there. As the bishop is not controlling any important squares from its present diagonal, the right square for it is h3, from where it controls not only c8, but also d7, as well as makes Black’s future development difficult. Therefore the right move is: 15Sxc8+! Less precise is 15 g3 as after 15...3xcl 16 Фхс1 Black is not forced to give the check on c8. Instead he has time to play something like 16...e6!? 17 dxe6 fxc6 18 ФЬ1 ФГ7 19 ±h3 Фе7 20 Bel &d7 where he is only very slighdy worse. Now after 21 Bdl Фе7 22 Scl &d7 23 Bdl Фе7 24 Scl the players simply agreed a draw in Graf-Jergler, Bayern 2000. But it should be noted that this in not GM Graf with White. 15...Bxc8 16 g3! Now the bishop can quickly go to h3 and pin the rook, as Black only has one good move right now. 16 JLxa7 Sa8 is obviously not good for White, as the black rook gets activity on the second rank, and White has nothing to show for this. 16...^d7! Л terrible move was 16...b6?, weaken- ing c6. Now White can change plans. The following game is a good example of the dangers Black is facing now. 17 .&b5 Sc7 18 b4 <5Td7 19 ^.xd7 Sxd7 20 Bel f5 21 Bc8+ ФП 22 &d3 Eb7 23 a4 e6 24 Фс4 fxe4 25 fxe4 exd5+ 26 exd5 Se7 27 Af4 Be4+ 28 ФЬ5 аб+ 29 Фхаб Sxb4 30 JLxd6 Пха4+ 31 ФхЬб JLd4+ 32 Феб Ва2 33 Ь4 Ь5 34 if4 Ваб+- 35 ФВ7 Ва7+ 36 Пс7 Ваб 37 Фс8+ Фf6 38 d6 Феб 39 Ве7+ 1-0 Gheorghiu- Sibarevic, Bern 1990. 17 ФИЗ Вс7 The second part of the exercise was
evaluating the position. This proved to be much more difficult for everyone, including Prit% and even the author. Originally when T found this exercise in Dunnington’s excellent book, Can you be a Positional Chess Genius (Everyman 2002) it was my impression that White would be a lot better in this position. Funnily Dunnington does not even evaluate the position, but simply gives the exchange of rooks followed by 16 g3 as the solu- tion. Anyway, looking through the games has later convinced me that White is at best slighdy better, and that Black should be able to draw with correct play. Here are some examples: a) 18 Лс1! It is my feeling that this line offers the best chances. 18... Sxc1 19 Фхс1 2>c5 20 Фс2 ECO has this position as clearly better for White. 2O...a5 21 b3 White cannot prove a real advantage as far as I can see. 21 Ad2 b6 22 ФсЗ e6 23 Фхё7 Фхё7 24 ФсЗ exd5 25 exd5 ^3a4+ 26 ФЬЗ b5 27 ФН 21c5+ 28 ФсЗ ^a4+ 29 Фс2 b4 30 ФЬ5 <53с5 with a fortress and a draw. 21 Фй e6 22 Фс4 Ф£8 23 аЗ a4 24 dxe6 fxe6 25 Фхс5 dxc5 26 Фхеб Ф04 27 id7 Фё1 28 h3 ФЬ2 29 g4 g5 30 Фха4 Фе5 and Black will make a draw. 21...Ф18 22 £.d2 b6 23 ФеЗ еб 24 dxe6 fxe6 25 аЗ?! The best attempt was 25 Фхс5! dxc5 26 Фхеб ^.d4! 27 ФdЗ £gl 28 Фе2! (28 h3 ФЬ2 29 Фс4 Фе7 30 Ф05 ±xg3 31 ФЬ5 Фс7 32 Феб Ф08 33 f4 £xf4 34 ФхЬб JLd2 35 Фхс5 g5 36 аЗ h5 37 Ь4 axb4 38 axb4 g4 39 hxg4 hxg4 40 е5 with a draw) 28...g5 29 ФА ФеЗ 30 Фс4 and White actually has real chances here. This is the best I have been able to find. 25...Фе7 26 b4 axb4 27 axb4 ^a6 28 ФЬЗ b5 29 f4 $)c7 30 Фн &d7 31 g4 Феб 32 h4 £te8 33 g5 d5 34 exd5+ exd5 35 Фс5 <53d6 36 ^.xd6 &xd6 37 ФхЬ5 Ф04 38 Jld3 Феб 39 h5 ФеЗ 40 hxg6 hxg6 41 Фхдб ’A-16, Bosch-Tischbierek, Germany 1997. b) 18 £xd7 Hxd7 19 ЬЗ a6 20 Hc1 f5! 21 exf5 gxf5 22 g4 fxg4 23 fxg4 ФТ7 24 ФdЗ e6! This shows that though Black is worse, his position will never become critical.
25 Hf 1 + Фе8 26 dxe6 3e7 27 Sf5 Sxe6 28 Sh5 h6 29 a4 Hg6 30 h3 &f7 31 5f5+ Феб 32 b4 £f6 33 b5 Фд5 34 Ьхаб bxa6 35 Sa5 ФхеЗ 36 ФхеЗ IIg5 37 Нхаб Дс5 38 Да8 Sc3+ 39 Ф14 Sxh3 40 2h8 У2-У2 Borgo-Vaulin, Paks 1999. At the offices of ChessBase in Ham- burg we got into a discussion about the position after 19...a6 20 Пс1 in the latter of the two tries. It went something like this: ‘How can you explain that there is no significant advantage?’ Mathias asked. ‘Because there is no goal,’ GM Rainer Knaak explained. ‘1 understand that there are no weak- nesses,’ Mathias said,’but how do I trans- late this into an evaluation function? White’s advantage is that b7 is a slight weakness and he has control of the open file. I understand very well that a weak- ness is only a weakness if it can be at- tacked, but you cannot put this into the evaluation function. It is a matter of search. You have to include things like weaknesses and open files, things that are generally true. This also includes penetrating into the opponent’s position with a heavy piece. Also there is a strong square on b6. These things need to be in the evaluation. To exploit them the pro- gram has to search.’ ‘If there was another piece on the board, like a knight each, White would be seriously better,’ Rainer said.’Now there are simply not enough pieces, and it is difficult to prove the advantage.’ ‘This is a very difficult thing to include in the evaluation,’ Mathias said.We are focusing on these things all the time, trying to make improvements.’
CHAPTER TEN Test Position 8 Test Position 8 Black to move. Take 12 minutes to find the strongest continuation, talking into a microphone or writing down your thoughts afterwards. Sten Vesterli “We are still in the opening. I am a pawn up. Let us take a look.’ ‘He has a knight on h4. He is attacking f7 with the bishop. My knight is hanging, his knight is hanging.’ T can take his knight. He can then ei- ther recapture with the b-pawn. This will give him two isolated pawns, which is not in his interest. But he can take on f6, and then I will recapture with the queen. Then I am also threatening his knight on h4. It is not in White’s interest.’ ‘If take on c3, then he will exchange queens with check and 1 will lose the possibility of castling. He will take my knight. Then I will have two isolated pawns. It is not terribly ingenious. I will lose the right to castle without material gains. It cannot be right.’ ‘If I move the knight he will play e6, bishop takes e6, bishop takes e6, pawn takes e6, queen takes the knight (g4).’ ‘1...^3g4 2 e6’ ‘2...fxe6.’ (long pause) ‘I have to do something about the £lf6. Either I have to move it or I need
some material in return.’ ‘Taking on c3 does not work (repeats previous lines). So I will have to move my knight. And g4 did not work out.’ ‘No, let me have a look. I...£)g4.’ (long pause) ‘l...£k!5 2 <53xd5 cxd5. It gives me a doubled pawn. I will lose the front- runner first, then the one behind.’ ‘1 ...£)e4 2 <53xe4 Wxh4 3 £}g5. Then I am in trouble. It is a threat against f7.’ (long pause) Time up! ‘I cannot find any sense to this, but I have to make a decision.’ 1...£ie4. Jesper Hall ‘I am Black, I am proud and I am beauti- ful.’ (Jacob: Well, at least you are beauti- ful).’Thank you.’ ‘Very- tactical position. White has more pieces in play, but on the other hand, the knight on h4 looks a bit odd. It should have been on g5 to put pressure on me.’ Tbe knight on c3 is threatened. The knight on f6 is threatened. What kind of difficulties is this after all? One possibil- ity is to take on c3 with the pawn. Then 2 JLxf7+ might be possible. Maybe I can play 2...ФхГ7 3 Wxd8 JLb4, but there is a problem, he can always play 4 Wc7+ and then castle. Well, maybe the queen is trapped, but... No, not really, he can al- ways play e5-e6 with check.’ ‘I...dxc3 2 JLxf7+ Фе7, maybe. 3 exf6+. It does not look good. I do not like that. I...dxc3 2 JLxf7+ Фх!7 3 Wxd8 cxb2, maybe. 4 Wc7+ £3fd7 5 e6+ Фхеб.’ What do I have. Two pieces and the king are in danger. It cannot be enough.’ What else. I...^g4. It looks very dan- gerous to play l...‘?3g4. He can maybe play 2 Wf3, it does not seem right to play 2...Wxh4 3 Wxf7+.’ “That is a mess.’ ‘On l...£)g4 he can also just play 2 £lf3 and it seems that I have problems.’ ‘1 ...dxc3 2 Jtxf7+ ФхГ7 3 Wxd8. That is the position.’ T...dxc3 2 £xf7+ ФхГ7 3 Wxd8 i.b4
4Wc7+^bd7 ‘I...dxc3 2 JLxf7+ Фх£7 3 Wxd8 cxb2 4 Wc7+ ^bd7 5 JLxb2 i.b4+ 6 ФИ £И5 7 e6+.’ What else is there. Hmm.’ What else? l...JLg4 perhaps, no he always has 2 Wb3, that does not look right somehow. 2,..We7 and now just castling or something terrible.’ “Maybe l...JLb4. If he plays 2 exf6 maybe 2...0-0. So l...^.b4 2 exf6. No, that does not look right either.’ “I...dxc3 2 jLxf7+ ФхГ7 3 Wxd8 no, it does not look good enough. What else?’ “I...£3d5 maybe. Then 2 Wxd4 JLe6, maybe. What is that position like? Maybe that is ok. Yes.’ “I...£kl5 2 JLxd5 cxd5 3 Wxd4 <53c6, that is ok.’ ‘Maybe 1...^3d5 is at least playable. 2 <?3xd5 cxd5 3 JLb5+ £ic6. It seems pos- sible at least.’ ‘Just a last check l...dxc.3 2 JLxf7+ ФхГ7 3 Wxd8. (pause)’ ‘Yeah well, I just cannot get this to work. So what is left?’ ‘1...^3d5. My intuition is not com- pletely happy.’ ‘Knight, phew.’ (pause) Time up. ‘I would have played 1 ...‘Sid 5 as I feel right now. Maybe White is a little bit bet- ter then. Maybe there is something even better, I just could not get it to work.’ Tom Skovgaard ‘So we have a fairly sharp position early in the opening. White has developed three pieces, and Black has only devel- oped one, and it is threatened. However, Black has a pawn.’ ‘Let us take the obvious, sharp line.’ ‘I...dxc3 2 exf6. Oh my God, this goes on and on. I...dxc3 2 Wxd8+ ФхВ8 3 exf6 cxb2’ ‘4 JLxb2 (Not 4 fxg7 of course). So if White exchanges the queens, I cannot recapture, as it will lose the rook. But I can keep the pawn there if I wish. No. Maybe. 4...g5, I might play that. Letting the white pawn be.’
‘I^et us look for alternatives. Maybe l...Wa5. Maybe moving my knight, threatening the <?3h4. To g4? To d5? No, not to d5, it will simply help him to get rid of the threat. Maybe l...£ig4.’ ‘I can also play 1 ...Ji.b4 now. It is also an interesting idea. So we have 1...^3g4 and l...Ab4. I think the first line I con- sidered with l...g5 is not that interesting.’ ‘I...^.b4 2 exf6 dxc3 3 Wxd8+ &xd8 4 0-0. Hmm.’ ‘Certainly a candidate move.’ ‘Maybe I have a problem with 2 lxf7+. 2...&xf7 3 Wf3+. Oh. It looks a little bit dangerous. But maybe not that much. 3...^?g8 or З—Фев. What then. 3...&g8 4 e6.’ ‘No.’ ‘If White does not sacrifice the bishop, what then. He can protect c5 with 2 £3f3. No, I am still threatening ...dxc3.’ ‘He could play 2 <$3e4.’ ‘I like this move. I...£lg4. 2 ^3e4 £)xe5 and Black has a good position. 1 can even give a check on b4 if I wish.’ ‘4...0-0.’ (Jacob: Here it is really not clear if Tom is talking about 3 0-0 0-0, which makes sense, or if he is really thinking what he says he is thinking. I would guess 3 0-0 0-0, but I will leave it to the reader to decide.)’Yes. Of course it is messing up my king’s position, but I am at least one pawn up. And maybe I will also win the f6-pawn. But I am way behind in development.’ What about l...Wa5. 2 exf6 dxc3 3 0-0. No. I will not get my king into safety. l...JLb4 looks better, as I can cas- de. But he can exchange the queens then, when I take the knight on c3.’ What was the problem with the l...£3g4 line. It was the reply 2 JLxf7+ Фх07 3 Wf3+ <^’g8, and White has no attack.’ ‘But l...£3g4 is only threatening the e5-pawn. He can protect that with 2 JLf4 or 2 f4, and my knight will get into trou- ble later. But I can capture his knight then, and I will win a piece. He needs to move the knight. 1 ,..^3g4 2 £)e4 <53xe5’
‘3 JLxf7+ ФхГ7 4 ^g5+. Oh we have a problem here, 5 Wb3+. I might be mated here. 4...Фе7 5 We2. It looks very dangerous. Maybe l...JLb4 is better. Fie cannot move his knight. He probably will have to capture my knight then, or play 2 JLd2. No, then 2...dxc3. l..JLb4’ ‘2 exf6 dxc3 3 Wxd8+ &xd8 4 0-0. Hmm.’ ‘No - a better line... l..JLb4 2 exf6 0-0. 3 0-0 Wxf6, threatening the other knight. I am at least a pawn up. I can play 3...dxc3. No, he has 4 JLxf7+, break- ing up my king’s position.’ ‘Maybe l...Jtb4 2 exf6 0-0. No, that was not it.’ ‘2 exf6 Wxf6. Yes. This looks very good. 1 am two pawns up. He cannot save his knight. But he can casde.’ ‘I...^.b4 2 0-0. Can I move the knight then? Oh, there is another option here. Can I play l...£ie4 2 <53xe4 Wxh4. No. That is bad. 3 JLxf7+.’ ‘l...JLb4 2 0-0. That was the problem. 2...0-0, of course.’ ‘And if White moves his knight, I will move my knight somewhere — g4. Threatening his knight. This looks fine. I am a pawn up.’ 1...i.b4, with 1 min. and 54 sec. re- maining on the clock. Peter Heine Nielsen ‘Л well-known position from the Slav. Or known is maybe too much. I cannot remember everything accurately, but I do recollect something with a queen sacri- fice here, or could it be another position. No, what 1 remember is l...dxc3 2 JLxf7+ ФхП 3 Wxd8 and then’
‘3...JLb4 seems to be a typical desper- ado. But of course it does need a fair bit of calculation. 4 Wxh8 cxb2+ 5 Фе2 bxalW 6 Wxg7+’ ‘which could immediately be consid- ered as relatively uncomfortable.’ ‘A good question is: What alternatives are there here?’ ‘Another obvious move is l...‘?3g4, which might not threaten 2...dxc3, which can be considered later, but at least threatens 2...Wxh4. So let us say l...“?3g4 2 £3f3 and we have similar problems as before.’ ‘Are there other candidate moves?’ ‘Let me calculate the sharp lines.’ ‘I...dxc3 2 JLxf7+. I have to take it. 2...ФхП 3 Wxd8. Now 1 am calculating 3...JLb4, but also to be considered is 3...cxb2.’ ‘I>et us take the simplest lines first. 3...cxb2 4 JLxb2 ±b4+ 5 Wd2 £xd2+ 6 <&xd2 ^3e4+. There I have a piece more, which is to be considered as satisfactory.’ ‘So let us try to continue. Once again, the queen sacrifice and 3...cxb2.’ ‘His obvious move is 4 Wc7+, and it seems to come to me as something which someone has played once.’ ‘4 Wc7+. 1 would typically consider to put something in between, but it all ends rather unfortunately. I would like to play 4...‘?3bd7 5 JLxb2 £3d5, trapping the queen.’ ‘However, as far as I can see, he then has 6 e6+ at his disposal, after which the queen escapes. Hmm.’ ‘Now T am calculating psychopathic moves such as 3...cxb2 4 Wc7+ and then 4...Феб, but what 1 fear than is 5 Jlxb2.
Now my problem is that after 5...JLb4+ 6 Фе2 £kl5 then the g7-pawn is hanging. But 4...Феб 5 JLxb2 1 seem to have 5...£)a6. I cannot see any problems then. 5...£3a6 seems to trap the queen.’ ‘Okay. 1 will try to go through the lines again.’ ‘I...dxc3 2 JLxf7+ ФхГ7 3 Wxd8 cxb2 4 Wc7+ (seems like only move) 4...Феб.’ “With how many pieces am I trailing? Now I have two pieces for the queen. So if he castles and 1 take a queen, he is missing just about every piece there is.’ ‘On 5 0-0 I would play 5...<5)a6 before I take my queen.’ (pause) ‘I find it difficult to see any problems with this line, but then of course 1 have preconceptions because it is this line that I think I remember, (long pause)’ ‘I have arrived at a place where I can- not see any reasons to depart from my main line, which goes l...dxc3 2 JLxf7+ Фх(7 3 Wxd8 cxb2. And now the only move that seems to make sense is 4 Wc7+, and then you play 4..Феб to block the e-pawn’s march forward. Now 5 Wxc8+ £lbd7 and 5 JLxb2 <£}a6 makes no sense for White, so we are talking about a really special move if White is to be saved. It could be 5 f4 bxalW 6 f5+ Фd5, but it does not seem to be realistic.’ ‘5 exf6, then I either play 5...bxalW or 5...JLb4+ and then 6...bxalW. Again, it is hard to believe that White has enough attack to compensate the material losses, but still it is possible that this is the road by which he should travel.’ ‘1 am pretty sure that this is what I would have played, as I did not really see any alternatives. Well, that is, I did not really finish concluding on l...£lg4 actu- ally. I would believe that after 1...^3g4 2 Wf3 then 2...^3xe5 or even 2...Wxh4. I...‘$3g4 2 “53 f3 then 2...dxc3 is not so fortunate, as 3 JLxf7+ now wins. And after 2..Jte7 he probably has 3 £3e4 and then it looks as if it is not so clear. But of course it could be questioned.’ ‘But 1 saw no problems with the theo- retical line 1...dxc3, so this is my final choice.’
Artur Yusupov Artur was shaking his head when I pre- sented him with this position: What are you doing to me, Jacob?’ he exclaimed, then sank into thought. He calculated several moves and liked many of them, before finally settling for lines similar to those given above by Peter Heine Niel- sen, with 1...dxc3. Ivo Timmermans The last moves must have been ...d4 and e5, so let me see. White is one pawn down. He has three minor pieces in play. Black has just one, the knight on f6.’ What does Black want?’ There are some problems in the posi- tion. For instance: If the d-file opens, then JLxf7+ could be a problem at some point. If the knight on f6 moves, then £lh4 is hanging.’ White is close to castling, while Black needs one more move. So it should probably be one of Black’s objectives: to get the king into safety. But let me first check the candidate moves. Obviously both knights are hanging.’ ‘I...dxc3 is one move. Another candi- date is l...JLb4. One more is 1...Wa5, but I am not sure if this is any good. l...We7 seema a bit odd after 2 0-0. Then 2...dxc3 3 exf6 leaves White fully devel- oped.’ ‘Let us start by looking at l...dxc3. There might be other candidates like L..Wb6, but let us first look at the nor- mal moves.’ ‘I...dxc3 2 JLxf7+ ФхГ7 3 Wxd8 cxb2, threatening ...JLb4+. Okay...’ ‘I...dxc3 2 .S.xf7+ Фе7 3 exf6+ and something nasty, I suppose. Okay.’ ‘I...dxc3 2 JLxf7+ ФхГ7 3 Wxd8 cxb2 — oh 3...Jlb4 straight away. No, I think I will take on b2. Take, take, take. If ...JLb4+ then Wd2 and ...Axd2+ and it is ok. This is probably not what you want to do. White will take on f6 and Black has a horrible pawn structure, so it is probably not good. (It is not clear to me exactly what line Ivo was looking at here. Maybe 2 Wxd8+ — see the following.)’ ‘So White has the advantage in both 2 JLxf7+ and the 2 Wxd8+ line. So do you want to play l...JLb4? This is interesting. At least there is no more threat of JLxf7+ if I take on c3. So Black cannot escape the pin. Now he can take on f6, he can castle, he can play Wb3. If 2 Wb3 then even 2...£3d5 3 Axd5 JLxc3+ and then both d5 and h4 are hanging, and I can
castle. So 2 *ъз is not so dangerous. What you probably do is 2 0-0 dxc3 3 exf6 0-0 and then you cannot... Well, you can play 4 fxg7, well, it is a bad position.’ 1...4ig4? You can save the knight on h4, not by playing in to f5. You can play 2 Wf3, threatening... Because then 2...Wxh4 is not possible — 3 Wxf7+.’ ‘2...1йгхЬ4 3 ЧИГхГ7Н- <^?d8. Okay, try again.’ ‘1...^3g4. Okay, if he plays 2 £if3 or something, I will play 2...JLb4 and 1 cas- de, without problems. Or maybe I will play 2...^.c5.’ ‘2 ^3e4 JLb4+, and you got a pretty normal position. Black is still a pawn up, so...’ ‘I...£lg4. The critical line is maybe 2 Wf3Wxh4 3 Wxf7+&d8.’ ‘l...JLb4. Okay, let us say that you play 2 0-0 and I play 2...0-0 3 exf6. Okay not very...’ ‘l..JLb4 2 0-0 dxc3 threatening to ex- change queens. 3 Wxd8+ &xd8 4 exf6. And then I can play... Hmm. 1 will just go back again.’ ‘I..lb4 2 0-0 dxc.3 3 Wxd8+ &xd8 4 exf6.’ ‘1 might play 4...gxf6 in this line. Or 4...Ae6, but White is still better in this line.’ ‘So what I would like to do here is to play something more active like l...£3g4, possibly. Okay, now the knight is hang- ing on h4. So what do you do after ‘and maybe 4 h3, or 4 e6 or 4 l$3e4. Black should be able to hold this posi- tion. If the knight goes away from c3 you got a check on b4. And ...Hf8 is coming up.’ ‘So 1...^3g4.’ ‘Okay, so l...dxc3 is not working. I...±b4 gives a bad position. 1...^3g4 seems ok, very sharp, but you can probably survive the attack. As White cannot castle directly, you can always sacrifice a piece back with ...Wxf24~ if you do not like it. Black can probably survive this position. Are there other candidates that I have missed.’ ‘l...JLe7 is interesting. Missed that.’
‘l...JLe7 with the idea 2 exf6 JLxf6 and both knights are hanging.’ ‘If you play 3 £>£3 then 3,..dxc3. If 3 We2+ then З...Фй you can always es- cape via g8 and h7.’ ‘I...£e7 2 £k-4 £lxe4. If 2 0-0 then 2...0-0 as well without ruining your pawn chain. Yes, I like that move. Let me just check if it does not fail tactically. 2 exf6 JLxf6 3 ^3e4 JLxh4 then 4 JLf4 is com- ing, maybe with £ld6+, but you simply play 4...0-0 and you are out of harm’s way. Let me just check.’ ‘l..JLe7 2 exf6 JLxf6. Another idea is to play 3 Wf3 because f7 is hanging, but you play 3...0-0. Okay, 4 £3e4 JLxh4 5 Wh5. It is possible that it gives some initiative. But I can always play...’ Okay — time up. 1...Де7'is my first choice and my second choice is 1...^3g4.’ Sidsel Heeg “That it is a mess is easy to state. First thought is if I should take the knight or not. If I take then he can exchange the queens with check. It ruins Black’s right to castle. Maybe I can move my knight with a threat on h4. That might sustain it - I don’t know if it is a precise term — pressure. Maybe it would also be possible to do something wise and pull myself together and get closer to castling, (pause)’ ТЯаск is perhaps behind in develop- ment. The question is if there is a way to get the initiative.’ (pause) ‘Does White have enough initiative for the pawn?’ (pause) ‘Where can I play the knight? If 1 play it to g4, then 1 am threatening the i?3h4. But it is also advancing a piece that has already been developed. If White played 2 <?3f3, then the black knight will be hanging loose on g4. But then maybe then it will be prudent to take the knight on c3?’ (pause) ‘2 £3 Wxh4+ 3 g3. It also looks as if it is going to be very messy, but White will have a loose position on the kingside, so maybe it pays off.’ ‘Taking on c3 does not look good, as he can exchange queens and take on f6. Then I will have a doubled f-pawn. It is of course not necessarily so always, but f5 looks as if it will be good for the knight. Or the bishop after exchanges.’ ‘l..Jtg4 does not look right on ac- count of 2 f3 — right in the face.’ The knight might also be able to go to d5. 2 £ixd5 cxd5 and the knight on h4 will be hanging.’ (pause)
Time up. ‘Ok 1 ...£lg4 and now possibly 2 £lf3 as the best move. Then I considered tak- ing on 2...dxc3 or 2...JLb4, which I am more likely to go for.’ Sidsel did not like 2...dxc3 3 Wxd8 + , not realising that she would be a piece up in the endgame. She did not see the ideas with JLxf7+ at all at any point. Still she managed to solve this posi- tion which so few others could do! Peter Skovgaard “Two knights are hanging, and of course it seems most obvious to take the white knight, as the black knight does not have that many good squares. But if l...dxc3, then probably 2 Wxd8+ <ii?xd8 3 exf6.’ “What can you play then? I could play 3...£b4 for example. If 4 fxg7 then 4...cxb2+ and 5...bxalW which protects the Hh8. But if instead of 4 fxg7 he plays 4 0-0, for example, then I can plan... Hmm, yes what can you play then?’ ‘Right, 1 ...dxc3 2 Wxd8+ ФхЬ8 3 exf6 JLb4 4 0-0. Then I can just recapture with 4...gxf6, but then his rooks enter at el and dl. It is probably not so good.’ ‘Maybe the first move is l...<§3g4. What good possibilities does he have? Maybe he can play 2 Wf3, threatening f7.’ What can 1 do then? Then I have 2...£3xe5, which defends f7, threatening both the queen and the bishop. And af- ter 3 We4 I can play 3...We7, which looks really good — for me. So he cannot play 2 Wf3 on 1...43g4, so what else?’ ‘1...^3g4 then comes...’ (pause) ‘I am threatening two knights. Maybe he can play 2 JLxf7+ or maybe it is just a senseless sacrifice. 2 JLxf7+ Фх17 3 Wf3+ Фе8...’ ‘then it seems to be over.’ What else will he be able to play on l...<?3g4. How can he protect the knights?’ ‘He might be able to play.’ (pause) ‘I cannot see how he can protect both knights.’ ‘Maybe 2 £le4 and if 2...Wxh4 then 3 .&g5 and the queen is not so well placed. In the case of 3...Wh5 then 4 Wxd4.
What should Black do then? He seems to be forced to play 4...JLe7, and the question is if White has some tempting possibilities. He can maybe play 5 JLxe7 Фхе7 6 Wd6+ Фе8 and then maybe 7 Wc7, threatening the bishop on c8 and ?3d6+. Black is probably in trouble.’ ‘I...£)g4 2 ^е4 Wxh4 3 -&g5, then Black might have some other moves. Something like 3...^3xf2’ Tut White can just play 4 £)xf2, and Black has gained nothing. But 3...Wh5 and then 4 Wxd4. Then maybe 4...£}d7, but then 5 £3d6+ JLxd6 6 cxd6, no, then the bishop is hanging on g5. So he can- not play 5 £)d6+.’ ‘Or maybe 1...^3g4 2 ?3e4 Wxh4 3 Jtg5, then maybe 3...JLb4+. It looks pretty ok. Then 4 ФТ1 and 4...Wh5. Then maybe 5 Wxd4 0-0.’ ‘It looks ok for Black.’ 1.. .‘51g4. On 2 £if3, which Peter had not considered, he fell into thought. Fritz 8 In this position the program used more time to get to a serious depth, as there were a lot of tactics and a lot of pieces on the board. The evaluation got stable after about 5 min., and did not change, could not change, as it needed to control all the silly moves (after 7 min. 1... M which only appeared for a very brief moment; Fnhj uses more time on’better’ moves) before it can start over with the primary candidates. After 8 min. we stopped the program. 1...2)g4. Proposed solution Test Position 8 The posiiton for this puzzle is known to theory and arises after the following sequence. 1 2if3 d5 2 d4 3 c4 c6 4 2)c3 dxc4 5 a4 JLf5 6 £lh4 JLc8 7 e4 e5 8 Фхс4 exd4 9 e5 This position is of course highly confusing. Many moves are ok, but only two give Black a certain edge, and 'ffliy one of them is clearly strong. But let us
of them is clearly strong. But let us take them all in ascending order. a) 9...^d5?! 10 Wxd4 Деб (10...^.e7 11 &f3 4^b6 12 Wxd8+ ±xd8 13 JLb3 ?)a6 14 JLe3 JLe6 15 JLxe6 fxe6 16 <§3d4 ^d7 17 Hdl gave White a slight edge in Mititelu — Pfeiffer, Leipzig 1960) 11 2>f3 After 10 Wb3 We7 11 h3 dxc3 12 hxg4 £lxg4 13 e6 £le5 the position is a mess. с) 9,..ДЬ4?! also only leads to a mess. 10 exf6 Wxf6 11 0-0 dxc3 (ll..>xh4 12 Hel+ Ae7 13 Se4 Wf6 14 Sf4 with a strong attack for White is not recommendable) 12 Wb3 a5 13 £>f3 0-0 14&g5 Wg6 15 bxc3 11...£.e7 (ll..JLb4!? 12 £xd5 £xc3+ 13 Wxc3 ±xd5 14 Jlg5 Wd7 15 Wa.3 h6 16 Ah4 g5 17 £g3 We7 18 0-0 with an unclear game) 12 0-0 0-0 13 2ie4 vlf4 14 51d6 ixd6 15 ±xf4 l_e7 16 Wc3 &xc4 17 Wxc4 and White is a little better here, where Forin- tos and Sokolov agreed a draw at Wijk aan Zee 1970. Ы 9...Дд4?! is not that clear. and the position docs not seem clear to me. d) 9...dxc3?! It is of course very tempting to sacri- fice the queen. And in Avni’s Creative Chess (yes, again!) this move is given an’!’. Actually, despite the deeply fascinating and original tactics, this move hardly leads to an advantage, and is therefore a
lot of energy spent on virtually nothing. 10 £xf7+ (10 Wxd8+ &xd8 11 exf6 &b4 leaves Black with slighdy better chances) 1O...£xf7 11 Wxd8 cxb2 (1 l...ib4? 12 ®c7+ and White wins) 12 Wc7+ Феб! 13 Wxc8+ vlbd7 14 Wxb7?l (White realises that he has gone wrong and tries to create a mess. But stronger was 14 Wxd7+ £lxd7 15 JLxb2 JLb4+ 16 Фе2 £lxe5 which gives Black a better game, but only just. 17 f4 “51c4 18 -&-xg7 regains the pawn, though White is lacking in development and will be under attack) 14...bxalW 15 Wxc64- &f7 16 e6+ Фд8 17 0-0 We5 18 Wxa8 Wxe6 19 Wxa7 Wd5 20 Wc7 £f7 21 £)f3 £d6 22 Wc2 h6 23 £lh4 We4 24 Wa2+ Фе7 25 2>f3 2>e5 26 2>xe5 Wxe5 27 g3 Wd5 28 Wc2 *f7 29 Sd1 Hc8 30 We2 We6 31 Wf3 Hc2 32 Ae3 Ha2 33 Wb7+ i.e7 34 Ac5 He2 35 a5 Wc4 36 жеЗ Wa4 37 Hd4 Wxa5 38 Wb3+ Фе8 39 Wb8+ *f7 40 *ЬЗ+ Фе8 41 Wb8+ &f7 42 Wb3+ and a draw was agreed in Larsen-Teschner, Wagen- ingen 1957. It is not without reason that a book on Bent I.arsen was called Bent Larsen — the Lighter!. Still, Black is of course winning even here... e) 9...Де7!? This is interesting and probably one of the only two moves to guarantee an advantage. 10 exf6 JLxf6 11 &e4? Now White is just much worse. 11 We2+! We7 12 &e4 -ixh4 13 JLf4 JLe6 also looks good for Black, but it was a better try. 11...JLxh4 12 0-0 0-0 13 Wh5 &e7. So far Inkiov - Ve- likov, Plovdiv 1982. Black went on to win, though not in the safest way. f) 9...2>g4! is strongest. 10 £rf3 (Forced. If 10 £le4 “SlxeS and that dream is over. The same goes for 10 Wf3 <?lxe5 11 Wc4 We7 and wins) 10...^.b4! Now White will come out of the opening a pawn down for absolutely nothing. 11 Wb3 We 7 12 v)xd4 ftxe5 and Black is probably just winning.
CHAPTER ELEVEN Test Position 9 Test Position 9 Black to move. Take 10 minutes to find the strongest continuation, talking into a microphone or writing down your thoughts afterwards. Peter Skovgaard ‘It is the same position as 1 had before, almost, where I was White instead of Black. But, with the black pawn racing down to promote, it is all a matter of calculation now.’ “The advance l...b2 looks pretty obvi- ous, then play ca continue with the se- quence 2 Ebi ФЬЗ 3 g4 Фс2 4 Zxb2 ФхЬ2 5 h4 ФсЗ’ ‘6 h5 Фк14 7 h6 S.d8. It does not look good. So that is probably not it.’ ‘It might be possible to play l...JSd2 2 g4 Hb2’ ‘3 h4 ФаЗ, no then he has 4 ДсЗ.’ (pause)
‘l...Sd2 2 g4 Sb2 3 h4 ФаЗ 4 Sc3 Фа2 5 Sxb3 ФхЬЗ’ ‘6 h5. Maybe 6 Ф£5 instead. 6...Sf2+ 7 Фё6 Фс4 8 h5 Фа5 9 h6 Фе5 10 h7 Hh2 11 &g7 Ф£4 12 h8W— this wins for me at least. So, does he have other op- portunities?’ ‘l...Sd2 2 g4 Sb2 3 h4 ФаЗ 4 h5 Фа2 5 h6, no, then I have 5...Sh2 after which 1 can take the pawn.’ ‘l...Sd2 2 g4 Sb2 3 h4 ФаЗ 4 h5 Фа2. It looks pretty good for me. Maybe 5 Sc8 then comes 5...Sf2+ 6 ФgЗ.’ ‘l...Hd2 2 g4 Sb2 3 h4 ФаЗ 4 h5 Фа2 5 Ec8. Hmm.’ ‘Maybe l...Sd2 2 g4 Ec2 3 Sbl b2 4 h4 ФЬЗ 5 Ф£5 Bf2+ 6 Фё6 Фа2 7 Exb2+ ФхЬ2 8 h5 ФсЗ 9 Ь6 Фd4 10 h7 Hh2 И Фй7 Фе5’ Фxg4 15 Фх£6.’ “This looks pretty drawish.’ ‘1...3d2 2 g4 Sc2 3 Sbl b2 4 h4 ФЬЗ 5 Ф£5 Sf2+ 6 Фg6 Фа2 7 Sxb2+ ФхЬ2. This is just the same variation as before.’ 1 ...Sd2 executed with I’/z minute left on the clock, and the conclusion that it leads to a draw. Sten Vesterli ‘At first glance it looks obvious. I...b2. Of course his b-pawn has now become passed. He cannot simply place the rook in front of the pawn, I will then advance with my king and threaten his rook, so it will have to go away.’ ‘His king cannot cross the d-file.’ ‘I...b2 2 Sbl ФЬЗ 3 h4 Фа2 4 Sei blW 5 Sxbl ФхЫ 6 h5, then it should be won for Black.’ ‘12 h8W Sxh8 13 ФхЬ8 Ф{4 14 Фй7 ‘My king would be on bl. I would in reality have rook and pawn against king and two pawns.’ ‘If he sacrifices his rook for my pawn, then maybe he has counterplay on the kingside. My alternative is to play on the kingside. But l...Sg5 2 g4 does not really improve anything.’ ‘Maybe l...Sd2 2 g3 (pause) 2..Sh2 3 h4. All I have achieved is to advance the white pawns. Anyway, my rook is fine
where it is.’ ‘l...Bb5!?/ “No it seems to achieve nothing.’ (Ob- viously calculating). ‘I...b2 2 Bc6, threatening my pawn on f6. No, I will queen, so that is no good.’ ‘I...b2, rook away. Then 2...Bc5 and 3...Bcl queening the pawn.’ fiIf 1...Ec5 then he can move to the side. I might as well just play l...b2 im- mediately.’ ‘I...b2 2 Bbl ФЬЗ 3 h4 Sc5 4 g3 Eel — it has to win.’ ‘I...b2 2 Ebi ФЬЗ 3 h4 Ec5 with the threat of ...Bel. It looks pretty good. What can he do with his pawns. If I get a queen, no, he will have to give up his rook. But my king cannot make it to the kingside in time. (Calculating).’ “The question is if he can make it on the kingside. His h-pawn is passed after all.’ Time up. 1...b2 Sidsel Ниед Ъ1аск has a centralised rook, which is keeping the white king away from the f- pawn. The white king might go to e4 to chase the rook away, but not really im- prove his position. But the white rook might be able to get hold of the pawn.’ ‘It looks natural for Black to try to ad- vance his passed pawn. It reminds me of some kind of theoretical position.’ "The black pawn is so far advanced that my first thoughts would circle around getting it across the finish line.’ The question is, what is the most dan- gerous thing White can do? If I push my pawn, then what can White do? The question is if White’s best chance is to advance his own passed pawn, or to give checks to the black king in order to pre- vent the pawn from queening.’ ‘It would be great if I could arrange for an exchange of rooks.’ White should be careful not to give too many checks, as Black will be able to put the rook in between.’ ‘I am considering if the best thing is to advance the pawn or to advance the king first. My first reflex is to play ...ФаЗ, but at the same time there is something that tells me that the pawn needs to be ad- vanced.’ Time up. 1...b2. Tom Skovgaard ‘Equal position. Two pawns each. How- ever, Black’s pawn is quite close to promotion. I^et us see.’
motion. l>et us see.’ “The obvious move is l...b2.’ ‘I...b2 2 Sbl ФсЗ 3 h4 Фс2 4 Sxb2 ФхЬ2 5 h5, no, 5 g4 ФсЗ 6 h5. Hmm. What then. 6...Bg5 maybe?’ ‘And on 7 h6 just 7...Sg6 8 h7 Bh6 and Black wins.’ ‘I...b2, what can he do? Maybe 2 Uhl.’ ‘2...Hc5 is a possible move, threaten- ing ...Scl, then he needs to play 3 Bbl ФсЗ. So now the rook is on c5 instead of d5. That makes no difference.’ ‘Why does this not just simply win right away. Oh, he can play g4-g5 with support from the h-pawn instead. T.et us calculate it.’ ‘I...b2 2 Shi Sc5 3 Sbl ФсЗ 4 g4 Фс2 5 Sxb2 ФхЬ2 6 h4 ФсЗ 7 g5 fxg5 8 hxg5. No, that is no win.’ ‘8...ФЬ4 9 g6. What then? The king is cut off. Maybe 8.^d4 was wrong.’ ‘Do we have a problem with that pawn. We need to stop that pawn. T^et us take it from the beginning again.’ ‘1...b2 (not 2 Sc8 because of 3...Sb5). So 5 Sxb2 ФхЬ2. How was it.’ ‘I...b2 2 Ehl Sc5 3 Bbl ФсЗ 4 g4 Фс2 5 Sxb2 ФхЬ2 6 h4. ahem.’ ‘6..ФсЗ 7 g5 fxg5 8 hxg5 Фd4. Oh, the rook is on c5 if he goes to hl first. Maybe it will be on d5.’ ‘After 7 hxg5, what can we play.’ “We can play 7...Sdl maybe.’ ‘8 g6 Фd4 9 Фg5. Oh, this is simply winning.’ ‘Can he do something else?’ ‘I...b2 2 Sbl ФсЗ 3 Фе4 maybe. No, it is a waste of time.’ ‘3 g4 Фс2 4 Sxb2 ФхЬ2 5 h4 ФсЗ 6 g5 (6 h5 Sg5 did not work] 6...&g5 7
hxg5 2dl, this must be the move. He will probably play 8 Фе5 Фс4 9 g6 2el+, no, this is not good.’ ‘He makes it with his king here. 7...Sdl is not good enough. 7...Фс4 maybe.’ ‘It was 5...ФсЗ 6 g5 fxg5 7 hxg5. No. This is not easy. 7...Фк14, still. 8 g6 2e5 9 g7 2e8 10 Ф15 Фd5 И <4>f6 Фd6 and the position is drawn. It is not easy to stop that g-pawn.’ ‘Maybe we just need to go down the g-file. Yes, that’s it! 5...ФсЗ 6 g5 fxg5 7 hxg5 2dl 8 g6 Sgl 9 Ф15 Фd4.’ ‘He needs to stay with the pawn. My king will come to the d-file. 10 ФГ6 Фd5 11 g7 Фd6 12 &f7 2fl+. 1 do not make it. Is there anything else I can do? I am out of time, I need to play l...b2.’ 1...b2. Tom afterwards said that it was only in the end, with 10 seconds left on the clock, that the idea of looking for alter- natives struck him. Then, of course, it was too late, and he had to play the move he had calculated. Peter Heine Nielsen ‘Well, the obvious idea is of course to play l...b2, approach with the king and take a race. This line is probably what should be calculated first.’ ‘I...b2 2 2bl ФсЗ 3 g4 Фс2 4 2xb2+ ФхЬ2 5 h4 ФсЗ 6 g5 fxg5 7 hxg5 but this doesn’t look promising. 7...2dl 8 g6 Hgl 9 Ф£5 Фd4 10 Фf6 Фd5 11 ФП.’ ‘Njet.’ (pause) ‘I am starting to calculate l...Sd2 now. My idea is that after 2 g4 I want to play 2...2f2+ in order to bring his king out of balance. Even though it seems as a rather artificial idea, it is still an idea.’ ‘1...2d2 2 g4 (looks like only move) then 2...2f2+ was my idea, but ok, let us say he plays 3 ФgЗ then I wanted to play 3...2c2. Then I expected 4 2bl, then I have 4...2c3+ and there it looks as if White is in trouble. I .et us try again.’ ‘1...2d2 and if 2 h4 then 2...2xg2 3 h5 2h2, so it is obvious he needs to hang on to his pawns.’ ‘So 1...2d2 then it seems to be very
logical to play 2 g4. Tt is possible to imag- ine other moves, but l...Hd2 2 g4 Hf2+, on 3 ФсЗ the idea is 3...Hh2 and I will take the h3-pawn, which I will presume wins, but the problem is... On 3 ^?g3 then 3...Hc2 4 Hbl Hc3+ seems to be very sensible. It wins as far as I can see. So 5 <&g2 seems to be forced, and then the king is cut of. So let me try to see if there is anything else on l...Hd2.’ ‘On l...Hd2 it should also be consid- ered if the rook can come behind the b- pawn. Let us see. l...Hd2 2 g4 Hf2+ 3 ^^3 Hc2 and now I have the check, so it should be 2 Hc8, but then I will simply play 2...Hxg2 so this is not relevant.’ ‘l...Hd2 2 g4 Hf2+, well, this was what we were talking about before. And it seems to be difficult to exploit the re- sources with 2 Hc8.’ ‘Okay, L..Hd2 2 g4 Hf2+ 3 Фе4 then the question is if I have really achieved anything with the manoeuvre. The idea would then be that his king is somewhat cut off. So let us say 3...b2 in this posi- tion. But it is possible that I have failed to cut it off like I want it. 4 Hbl ФсЗ 5 h4 Фс2 6 Hxb2+ ФхЬ2.’ ‘Hmm.’ (pause) ‘It is not completely clear to me.’ ‘I think that L..Hd2 seems to be promising, but I am not completely con- vinced. So it makes sense to look at al- ternatives. And then l...b2 is more or less the only alternative I can see.’ ‘L..b22Hbl ФсЗЗё4.’ ‘But we can also say l...b2 2 Hbl ФЬЗ 3 g4 Hc5 3 h4 Hcl 4 Hxb2+ ФхЬ2 5 g5 fxg5 6 hxg5 ФсЗ 7 g6 Hgl ’ ‘8 Ф15 Фd4 9 Ф16 Фd5 10 g7 and it seems as the same bad race as before.’ ‘L..b2 2 Hbl ФЬЗ 3 g4 Hc5 4 h4 Hcl 5 Hxb2+ ФхЬ2 6 g5 it could be possible to play 6...Hfl+, with the idea to retain the f-pawn. It is possible that this does make a difference. Let me see.’ ‘6...Hfl+ and he will have to go some- where.’ ‘Maybe he should not play 6 g5, but 6 Ф5 Hfl+ 7 Фй6. I^t me see 7...ФсЗ 8 h5 Фd4 9 h6 Фе5. It does not seem to
work for me.’ “But here, at the end of the rope, the conclusion will have to be that I play 1..В2 2 Bbl ФЬЗ 3 g4 Hc5 4 h4 Scl.’ ‘Da.’ 1 ...b2 executed. Ivo Timmermans ‘Okay. A familiar rook ending. Black has advanced his b-pawn to b3. His rook and king are active and support the pawn.’ ‘It now looks as if White will be forced to sacrifice the rook at b1, and he should do so as late as possible, so that his pawns get time to move.’ ‘What does Black threaten? He could play l...b2 forcing 2 Sbl or he could even play something nasty, keeping White busy. Okay, what should we do. The rook on d5 looks okay as it prevents <&f4-f5xf6. I think it would be normal to go as fast as possible, so l...b2 seems like the premier move. Then 2 Sbl, for in- stance, 3 g4 ФЬЗ 4 h4 Фс2 5 Sxb2+ ФхЬ2 6 g5 fxg5 7 hxg5.’ ‘Unfortunately it is one square too far away, so 6 g5 is probably a draw. So 1 might... Okay, what should we do as Black. T^et us start again.’ ‘I...b2 and the rook must move. Well, it can even go to 2 Bc8, but no, the rook can come in between on b5 if there is a check on the b-file, so we should stay on the first rank.’ ‘If then 2 Sbl 1 can play 2...Sd2 3 g4.’ Then what if I go back with the king. Then White can advance with h4 and g5, and I need to defend with the king, while he goes to the queensidc, picking up the b-pawn. So I should really get the rook for the pawn.’ ‘I...b2 2 Sbl, let us start again. There are two ways of getting it. One is 2...ФсЗ. Okay, White follows his plan. 3 g4, even if he wants to go with the h- pawn, he will have to play g4 to support h5, so l...b2 2 Sbl ФсЗ 3 g4 Фс2. If the rooks go away then 4...blW 5 Sxbl ФхЫ 6 h4 (repeats line quickly). Then what do you do? Maybe 7 g5 fxg5 8 hxg5 Фс2 9 g6 ФdЗ 10 g7 Sd8.’
“The black king is shouldered off, so it is only a draw. You should be able to stop... Aha, some ideas.’ You should win a tempo maybe. You could stop White from playing g4 and h4. Because l...b2 immediately does not win. So maybe we should play 1...2g5, there follows 2 g4 and h4, but maybe l...Sh5 is a silly move, with the idea of stopping the pawns.’ Time up. 1...Hh5. Jesper Hall ‘Oh, I think it is so depressing.’ (rook endings that is — J.Ла.).’But I am Black and I am still proud. Okay.’ T...b2 2 Sbl ФЬЗ 3 g4 Фс2 4 Sxb2 ФхЬ2 5 h4 ФсЗ 6 g5 fxg5 7 hxg5 Фd4 8 g6-’ ‘Okay.’ T...b2 2 Sbl ФсЗ 3 g4 Фс2 4 Sxb2 ФхЬ2 5 h4 ФсЗ 6 g5 fxg5 7 hxg5. Somehow I want to come across the line with the king. 7..^d4, it is really the key position. White to move.’ (pause) Yeah, l...b2 2 Sbl ФсЗ 3 g4 Фс2 4 Bxb2 ФхЬ2 5 h4 ФсЗ 6 g5 fxg5 7 hxg5 ... 7...Ed6 8 Фй. Yeah, that is a draw.’ ‘Another good move might be l...Eh5 in this position. It is a good move actu- ally. Can I stop the pawns?’ T...Sh5 to stop the passed pawns. 2 Фй4 Sg5+ 3 ФВ b2 4 Sbl ФсЗ.’ ‘So what will he do after l...Sh5? I get some extra tempi in this position.’ 'So, 1...Sh5. What is my idea after 2 Фё4 Sg5+ 3 ФВ b2 4 Sbl ФсЗ 5 g4, that is the position.’ “This might be winning. (Repeats the line.) 5...Фс2 6 Sxb2 ФхЬ2 7 h4 and then maybe 7...Se5 8 ФЕ4, maybe the rook could be in a better place. 7...Sa5 8 Фf4 ФсЗ 9 g5 fxg5 10 hxg5 Фd4 11 g6 Фd5. Not winning. Phew.’ T...Sh5 2 Фй4 Sg5+ 3 ФВ b2 4 Sbl ФсЗ 5 g4 Sa5 6 h4 Фс2 7 Sxb2 ФхЬ2 8 Фf4 ФсЗ 9 g5 fxg5 10 hxg5 ФdЗ’ ‘I cannot find anything in the position after 11 g6.’ ‘l...Bh5 2 Фg4 Sg5+ 3 ФВ Sc5.
Maybe 3...Hc5 is a good move. 4 ДЫ ФсЗ, maybe I am able to win a tempo somehow.’ Time up. 1...Sh5. Artur Yusupov Artur calculated l...b2 first, second and third. He was unable to find a convinc- ing line, and he started to think that maybe there was something more to the position. When he started looking for candidates, he soon came up with l...Sh5, a move he immediately liked, and with which he stayed loyally until it was time to make up his mind. 1...Sh5. Fritz 8 F’nhj opens with l...b2, giving it a very high evaluation. After about 20 seconds it changes to l...Eh5. After 1 min. 24 seconds it changes back to l...b2, but does not change the optimistic evalua- tion of the position. Obviously this is a position where tablebases would help the program. After 2Vi minutes the evalua- tion starts to drop. Then it switches back to 1...Sh5, first with an evaluation similar to l...b2, then rising. ‘It returns to the same positions,’ Mathias explained,’changing the evalua- tions. It looks like the position might be a draw, and the program tries to push the draw out of the horizon by manoeuvring around. It tries to hold on to the advan- tage as long as possible!’ (Obviously a weakness of the program, but clearly the programmers choose between several unpleasant side effects, and this is not a serious one to them, as it makes little real influence on the actual decision making of the program.) The pawns are not that advanced, so the position must be winning somehow,’ Mathias said.’But let us see what Fni? says, it is of course the stronger player!’ After 10 min. it chooses 1...Hh5 giv- ing Black an advantage of 3.5 pawns. Proposed solution Test Position 9 Salov-Gligoric Belgrade 1987 (continued from Test Position 6) This exercise is of course a matter of endgame technique, but then again, end- game technique is not just knowledge of manoeuvres and theoretical positions. It is also a matter of accuracy, calculation and, most of all, prophylaxis. This exer- cise can be solved in several ways. One is simply calculation: the two main moves, 81...b2 and 81...flh5 can be calculated, and it will show that only one of them wins. Another is that of comparison: in the lines with 81...b2 the king is one move closer to the eighth rank than in the lines after 81...Sh5. So a choice be- tween the two can be made on this sim- ple basis. Finally, there is the technique
of do not hurry’, which basically means that you should always pay attention to preventing your opponent’s counterplay in the endgame. All three methods in- validate 81...b2 and encourage 81...Hh5 as played by Gligoric in the game. The variations for 81...b2? go as fol- lows. 82 ДЫ ФсЗ 83 g4 Фс2 84 Hxb2+ ФхЬ2 85 h4 3d2 (85...ФсЗ 86 g5 fxg5+ 87 hxg5 with a theoretical draw; the point here is that the white king is shouldering the black king, so that the pawn eventually will claim the rook) 86 &f5! (86 g5? Sf2+ 87 &g4 ФсЗ! and Black wins was pointed out to me by Mark Dvoretsky. Thanks.) 86...Hf2+ 87 Фдб ФсЗ 88 h5 ФВ4 89 h6 Фе5 90 h7 Eh2 ФЬЗ 84 h4 are similar: 84...Ш2+ 85 Фе4 Фа2 86 fihl blW+ 87 Hxbl ФхЬ1 88 g5 f5+ 89 ФеЗ Hfl 90 g6 f4+ 91 Фе2 Hhl 92 g7 Hgl 93 ФВ Hxg7 94 Фх£4 and the position is drawn; but not 84 ФВ? Hf2+ 85 Фйб Sf4 86 g5 f5 [86...fxg5 87 Фxg5 would be a draw] 87 h4 Фс2 88 Hxb2+ ФхЬ2 89 Ф£6 Hfl and Black wins) 83 Фе4! (83 ФеЗ Sh2 84 Hc6 b2 85 Hxf6 Hxh3+ 86 Ф£4 Hb3 and it is all over) 83...b2 (83...Sh2 84 Ф15 and White draws) 84 Sb1 ФЬЗ 85 h4 Фс2 86 Sxb2+ ФхЬ2 87 д5 f5+ 88 ФеЗ 2f1 89 дб once again with a draw. The solution is 81 ...Sh5!l Here it looks as if White will lose, but the position is actually still drawn. 91 Фд7! Ф14 92 ФхТб! Hxh7 93 д5 and White escapes with a draw. A much better attempt, but presuma- bly a failed one, is 81...Sd2!?. Now my analysis again should not be considered conclusive, as I am limited by the reach of my abilities. This is my opinion after hours of analysis, but 1 would not like to think of it as the truth at all: 82 g4 Hf2+!? (the lines after 82...b2 83 Hbl
I am completely in love with this move. It is simple and deep at the same time as it is surprising. The reasons for it are given above so I shall not repeat them. Instead, let us see how the game concluded. 82 Sb1 What else? 82 &g4 Sg5+ 83 Ф£3 forces the white king backwards, and Black can now win the race: 83...b2 84 Sbl ФсЗ 85 g4 Sa5 86 h4 Sal 87 Sxb2+ ФхЬ2 88 &f4 ФсЗ 89 Ф£5 (89 g5 fxg5+ 90 hxg5 Фd4 91 Ф(5 ФЬ5 92 g6 Sf1+ and Black wins) 89...Sfl+ 90 Феб Ф04 91 h5 (91 g5 f5! and Black will queen his pawn) 91...Фе4 92 h6 92...Shi! and Black wins the game. 82...ФсЗ 83 Sh1 White still has no way to improve his position. 83...b2 84 g4 Ea5! 85 Sb1 Sa1 86 Sxb2 ФхЬ2 87 Ф15 Sf 1 + 88 Фдб 88 Феб ФсЗ 89 h4 Фd4 transposes to the lines with 82 Фg4 above. 88...ФсЗ 89 h4 Ф<14 90 h5 Фе5 91 h6 Зд 1 0-1
CHAPTER TWELVE Test Position 10 Test Position 10 1 ...gxh4 2 jce3+ &h5 3 £e2+ White to move. Find the strongest con- tinuation. Do this talking to a micro- phone or taking notes on a piece of pa- per at timely intervals. Take the time you find necessary, and write it down too. Sidsel Heeg ‘My first thoughts are if there are any- thing tactical here, a chance to mate the black king. It could be with 1 Hh4+.’ Tut now I have sacrificed a queen so I need to take care, but... I cannot really see anything wrong with it at all. No, nothing.’ 1 Sh4+ (executed after 2‘/2 min.) 3...*g6.’Oh yes, unfortunately, I had not seen that.’ Jesper Hall ‘I am White and no less proud!’
‘My first move will be 1 Hh4+ gxh4 2 JLe3+ ФЬ5 and probably I would try 3 ng7.’ ‘And that threatens to play 4 JLe2 mate. How will he protect against this? If he plays 3...h3 I will still give him a check with 4 JLe2+ and then 4...ФЬ4 5 g3 is checkmate.’ ‘1 Sh4+ gxh4 2 JLe3 ФЬ5 3 Sg7. Now what can he do? He might play the incredible 3...Wf3 or even another crazy move.’ ‘4 gxf3. Phew.’ ‘So 1 Sh4+ gxh4 2 JLe3 ФЬ5 are there any alternatives to 3 Hg7? No, there are not. So 3 Sg7 Wf3 4 gxf3. Now maybe 4...d5. (Repeats the line twice.) Maybe 5 f4 then he can play 5...JLg4!’ (repeats the line once again, trying to find alterna- tives). “Taking on h7 forces him to take. 5 JLxh7 wins the exchange. Maybe it is not winning, but at least it is good.’ ‘1 Hh4+ gxh4 2 £c3 ФЬ5 3 Hg7 Wf3 4 gxf3 d5 — where is the mate. 5 JLxh7’ ‘5...Hxh7 6 Exh7+ ^g6’ (repeats the line once again) ‘5 f4 maybe. No, then he can play 5...ФЬ6. 6 Sg3 h3.’ ‘1 Hh4+ gxh4 2 £сЗ ФЬ5 3 Sg7 Wf3 4 gxf3 d5 5 JLxh7 Hxh7 6 Sxh7+ ^gti 7 Hh8 b6.’ ‘Okay. 1 give the check on h4.’ 1 Hh4+.’It should give a winning po- sition.’ Artur Yusupov If Artur was getting tired by now is hard to say. He did not show the same level concentration as in the previous exer-
cises, indicated first and foremost by his only analysing one move, 1 Hh4+. He simply could not believe that there was any alternative to pushing his advantages immediately. Afterwards he explained that he simply did not have the imagina- tion to believe that White could play with more restraint, and that the compensa- tion for the queen was so large, that White could delay confrontation a move or two. His line was 1 Sh4+ gxh4 2 JLe3+ &h5 3 Sg7 Wf3 4 gxf3 d5 5 £xh7 Hxh7 6 Sxh7+ Фдб 7 Sh8 b6, just like Jesper Hall, but his conclusion was only that White had a slight advantage. 1 Hh4+. Sten Vesterli ‘Materially 1 am way behind, with only a bishop for the queen. 1 have two bish- ops. The e-file is open and dominated by my rooks. His king is exposed on h6. I am vulnerable to a back rank mate. For now the bishops are in charge of that.’ “The black king is a bit in trouble. There could be something interesting there. Ixit’s see.’ ‘1 Hh4+ looks interesting. I...gxh4 is forced. 2 JLe3+, now there are two pos- sibilities. No, there is only one. 2...Ф115 (2 min pause)’ “There might be a combination with 1 Hh4+ gxh4 2 АеЯ- ФЬ5. If I give a check with the light-squared bishop he gets the g6 square. 3 g4+!?’ ‘then 3...hxg3 is forced.’ “Then his king is at h5. He can always go to h4. I cannot give him a check on f6, as the queen will capture it.’ ‘Let’s sec how I can force a win out of this! It needs to be something really quick, as I am behind materially. It is my move and I have the initiative. f6 does not look weak, but if I could put a rook on f6, then it would be alright.’ ‘Possible is 1 Д17 planning 2 Sxf6.’ ‘How will he protect this? He has no dark-squared bishop. Actually I have a material advantage right now, as he has two pieces which are not contributing
with anything. Sh8 has some impor- tance, as it protects h7, but it docs not protect a lot.’ ‘If I take on f6 immediately he will re- capture with the queen. There is still a pawn on d7 which takes the e6 square away from me.’ ‘If I play 1 JSh4+ gxh4 2 JLe3+ 1 will of course attack h7 twice, but it is not really decisive.’ ‘I need to create a hole in the pawn chain somehow. What if I start with 1 h4. Yes, what about 1 h4. then 2 hxg5 fxg5. Hmm.’ (pause) ‘1 f4 then l...g4, and I have 2 f5.’ ‘It is hard for him to move the d-pawn. If he plays l...d6 he opens for his bishop, but then I am allowed to put a rook on e6. Oh no, it does not work once he has opened for the bishop. It would be in his interest to do so. Preventing me in ex- ploiting that the king and queen are on the same rank.’ (long pause) ‘I cannot really see a way to collect enough firepower to reach him behind his pawns. Of course I can play 1 Ee3’ ‘with the threat of 2 Hh3 mate, but then he will just answer l...d6 and guard himself with the bishop.’ ‘As far as I can see then 1 h4 might be a good shot. He cannot really take it, as 1 have 2 Sxh4+.’ T...f5 will attack my rook.’ ‘If he plays l...gxh4 then I have 2 JLe3+. Then he will play 2...Ф115.’ (Long pause)This is my best try.’ He executed 1 h4. Peter Skovgaard ‘You have a bishop for a queen, so it should be advisable to win in an attack, as the endgame looks dubious. It could be possible to try some ideas like 1 h4 in order to break through to the black king. Or maybe there is something stronger.’ ‘Maybe 1 Sf7 in order to take on f6 with the bishop, but this does not really threaten anything.’ What can Black do? He would proba- bly like to play l...d5 and get his pieces out. This will not do.’
‘So 1 h4 <15 and then 2 hxg5+ and if 2...fxg5 then I have 3 ^.g7+ and on 3...^g6 then 4 S4e6+.’ This looks pretty strong. 4...ФН5 5 JLe2+ФЬ4 6 g3+ФЬЗ.’ Then I can play 5 Д4е5+- 'i'gb 6 JLd3 mate. So he cannot recapture with the pawn on g5.’ What if he plays 1 h4 d5 2 hxg5+ ^xgS. What then? Then maybe 3 JLe3+ then 3...&gS 4 Hh4+ f5’ ‘5 fih6 mate. This looks pretty strong again.’ ‘And what else?’ ‘Instead of З...Ф^, he might be able to play З...Ф115, but then I have 4 g3 with the idea of 5 Hh4 mate, which he cannot prevent.’ ‘On 1 h4, then instead of l...d5, then maybe he has l...Wxe4 2 JLxe4’ ‘Or maybe 6 g3+ then 6 ФЬ2 threatening mate with 7 g3+. This looks goddb4 d5 2 hxg5+ fxg5 3 JLg7+ ФЬ5 then 4 Jle2+ and he must play 4...g4.’ ‘and then 2...Д18 does not work be- cause of 3 Sxh7 mate.’ ‘But on 1 h4, what other possibilities does he have than l...d5. It does not look good for him. Maybe he can play l...f5,
though it looks pretty wild.’ ‘I can then play 2 JLg7+ or maybe 2 hxg5+ ^xgS. Then I have 3 S.e3’ ‘with the threat of 4 SgM.’ ‘It is also threatening the rook on h8. This also looks pretty strong for me.’ ‘So I think I will play this.’ 1 h4, after 8 minutes. Ivo Timmermans ‘White has sacrificed the queen for a mi- nor piece, so we should go for the black king. Ok, let’s go!’ There are a few obvious attacking motifs. The king is cut off. So I will start with 1 Sh4+ to see if it leads to a mate. From other moves 1 JLe3 could be in- teresting, but it does not look like it.’ ‘Ok, I will start with looking at 1 Eh4+, and only if that does not work, will 1 turn to other candidates. 1 Ш14+ gxh4 2 JLe3 mate, sorry, 2 JLe3+ ФЬ5 3 Jle2+ &g6, so you probably have to play 3flg7to prevent Now, how can Black prevent JLe2 mate? Can you pre- vent it? You can always play 3...d5 so you can but the bishop in between, but then’ ‘4 JLe2+ -&g4 5 JLxg4+ ФЬ4 6 g3 mate. So that does not work.’ ‘So you probably have to look for something else. I will just look at the lines, checking that the beginning is cor- rect. 1 Hh4+ gxh4, forced. 2 JLe3+ ФЬ5 and then preventing the king walking away with 3 Sg7, threatening 4 Jle2+. Ah, sorry, now I see that there is a pawn on h4, so you can never play ...ФЬ4. I overlooked that. 3 Sg7 with JLe2+ com- ing. What to do about it?’ ‘1 Eh4+ gxh4 2 JLe3+ ФЬ5, there is nothing you can put in between. 3 Eg7. If 3 Sg7 does not work I might look for other moves. The threat is JLe2+. So what would you do to stop it?’ ‘One idea is maybe 3...Wf3, a desper- ado, which looks quite interesting. Hmm. 3...Wf3. 4 gxf3 is probably forced. Is there anything else? 4 gxf3, and then the next move is 5 f4 and JLe2+ comes again. But then on 5 f4 you play 5...JLg4 (after 4...d5 — J.Aa.) keeping the bishop
on the g4-dl diagonal. I will look at something else.’ ‘3...Wf3, that is a bit of an odd move. Maybe even 3...Wxg2+.’ ‘I -et me see. 3 Sg7 in this position. Let me sec if 3...Wxg2+ is a problem. No, let me first solve the problems with 3...W13. 4 gxf3 and the next move I will play is 5 f4, but 5 f4 allows ...Фкб, which is a bit inconvenient, as it threatens the rook again. 3...Wf3 is a nasty move.’ ‘Ok, here we go again. 1 Sh4+ gxh4 2 JLe3+ ФЬ5. I do like 3 Hg7, though 3 g4+ is also possible. But let me first look at 3 Hg7. Still 3...Wf3 is a bit annoying. 4 gxf3. I keep coming back to it. That is a bit of a problem. What do you do if I try it differently.’ ‘1 Hh4+ gxh4 2 JLe3+ ФЬ5 and now 3 g4+ <^xg4 4 Sg7+.’ ‘No, I do not think that is going to lead to mate. So the whole idea with 1 ПЬ4+ probably does not lead to a mate.’ ‘What if I reverse the move order. If I play 1 JLe3 first...’ “You can maybe play even l...'iifxe4 and after 2 JLxe4 there is no attack.’ ‘1 Hh4+ gxh4 2 JLe3+ ФЬ5. Now do 1 have anything else? Is there a move like... Any move? 3 g4+ does not work. 3...^xg4 4 JLe2+. I have not even looked at 3...hxg3, but it might be met with 4 JLe2+.’ ‘No, then you go to g6. So 4 Hg7+ Ф£3, which is a nuisance. 1 Hh4+ straight away does not work.’ What could I do next? Should I play 1 2c3 to prepare a simple threat of 2 Sh3 mate. And in the case of 1 ...g4, what do I do then? It is not so clear. 2 Sh3 does not work. 2...gxh3 3 ДеЗ+ ФЬ5.’
I go back again.’ T h4. The idea is to open up the posi- tion. I got one nice line, but let us see if the rest fits in.’ ‘1 h4 Wxe4 2 fxg5+, and I would not consider 1...Wxe4 if Black has any other moves. But suppose 1...,Йгхе4 2 hxg5+ fxg5 3 JLxe4, with a double threat of jLxh8 and Hxh7. So after 1 h4 Wxe4 2 hxg5+, then 2...'^?xg5 is a forced move.’ ‘Hmm. Okay, not easy!’ “Let me just start again with candidate moves. Txit me get back to the beginning. I think 1 Hh4+ does not work immedi- ately. So do I have other moves? Do I have anything else? Are there any other mating motives I can think of. If the f6- pawn was gone, then Ag7+ would be strong. Are the any other mating motifs? Ixt us have a look. 1 h4. The problem is that Black always has l...Wxe4, stopping the first wave of the attack. I.et me see. 1 h4 Wxe4 2 JLxe4 or 2 hxg5+.’ T^et me see. 1 h4 to play hxg5 soften- ing up the position. I do not have the feeling that I am on the right track. 1 h4 Wxe4 2 hxg5+ fxg5 3 JLxe4.’ The rook on h8 is hanging. If 3...Hg8, then what is next. Ah, then h7 is hang- ing. This is a very nice idea. Very simple. “Then 3 Axe4, because 3 Hg7+ will be met with 3...Bg6. So 3 Jtxe4, and now there is a threat of JLe3+. 3...f5 is not good, as the Eh 8 is still hanging. So 1 am looking at 1 h4 Wxe4 2 hxg5+ S&xgS 3 JLxe4. The threat is Eg7+, and in the case of 3...Sg8 I will probably play 4 JLe3+, the king goes to g4 or the h-file, and then comes 5 Sxh7 with a continu- ous attack. So 1 h4.’ “What is actually the idea of 1 h4? It is probably simply to open up the position. A general idea is hxg5+. If you take with the king then comes JLe3+, and the king cannot go to g6 and f5, so you go to h5, and then comes Ae2+. So actually this is threatening the same as before. After hxg5+ fxg5, the idea is Ag7+, or actually JLxh8 is even simpler. So 1 h4. Let us have another look.’ ‘1 h4. The king can never go to g6 as
then S4e6+ wins the queen back. So 1 h4. What will Black do. You have several moves. You got l...g4. I just looked at l...Wxe4. Ok. I xit us go one more time.’ ‘1 h4 gxh4 2 JLe3+ ФЬ5 then follows 3 JLe2+ winning. Well, there should be a win somewhere. 1 believe it works. I...gxh4 2 JLe3+ ФЬ5. Well, I can start with 3 Hg7, then even 3...Wxe4’ ‘4Де2+^4 5 Дxg4 mate.’ ‘I...gxh4, l...g4. I suppose 1 will play 2 Sxg4, which pins down the king. If you play 2...ФЬ5 then 3 JLe2 comes, which threatens a lot. So l...g4 is not a good option, because of simply 2 Sxg4. Are there any other moves. I have already looked at L..Wxe4 2 hxg5+, what do you do then. You’ve got more options than simply 2...fxg5. 2...^xg5 is one.’ Then you play 3 JLxe4 with the threat... No, I think I have already looked at this one. The threat is Ae3+ driving the king to the h-file, playing Sg7 with an attack. Tt should win. Because I’ve got three pawns in front of my king which can participate in the attack. So 1 h4 Wxe4 2 hxg5 ^xg5 3 JLxe4, should win, 3...f5 4 £xh8. So next move. 1...Wxe4 2 hxg5+ ^g6 3 Axe4+ and then there is 3...f5, but this allows a pin on the e4-g6 diagonal after 4 JLd3.’ ‘You are forced to move the rook, which allows against a check on g7.’ ‘So 1 h4. Let us do something funny. For instance l...d5 which opens up the bishop’s diagonal. Or l...d6. Let us have a look at 1 h4 d6.’ ‘But first of all. Let me look at L..d5. 2 hxg5+ fxg5 is not attractive, as I just play 3 Sei and again the rook on h8 is hang- ing. So White wins at least... Ok. Let me go back just one more time.’ ‘L..d5, because it is probably also just winning an exchange back, which is not much. I...d5 2 hxg5+, and now two moves, 2...^xg5 and I can even play 3 f4+ &g4 4 Jte2+ Ф15 5 g4+ ^g6 6 f5+ king to a dark square 7 JLe3+ with a con- tinuous attack. This is really something that 1 believe should work. I must have a lot of ideas there.’
‘So 1 h4 d5 2 hxg5+ ^?xg5. Probably 3 f4+ is a nice move. 3...<&g6 always meets 4 Й4е6+ where 1 win the queen with a continuous attack.’ ‘3 f4+.’ ‘If you go to h6, then maybe just 4 Se3 with £5 and Sh3 coming up. I think I should have enough attack.’ ‘I...d5 2 hxg5+ fxg5. What to do then? Good point. What I do then is maybe 3 .&xh8 dxe4 4 jlg7+, no, that is not working. 4 JLxe4 and then forced is 4...Wxe4, exchanging the queen for a bishop, and probably White should be slighdy better.’ ‘I...d5 2 hxg5+ fxg5. Where can the rook go?’ ‘Maybe 3 Й4е6+ Ji.xe6 4 JLg7+ ФЬ5 5 JLe2+ then 5...g4.’ tion, 1 h4 d5. This is probably a good defence for Black.’ ‘I...g4 failed, l...Wxe4 failed, but l...d5 is keeping it together. So 1 h4 d5 2 hxg5+ fxg5, what to do? What do I have?’ ‘Okay, if I play 3 flh4+ now, then 3...gxh4 4 JLe3+ ФЬ5 5 Sg7’ ‘and now you’ve got 5...Ag4 or 5..Wf3 again.’ ‘I am not sure about this line. Is there anyway I can avoid these issues? I have already looked at 1 JLe3. It is not so at- tractive, because it removes the pressure from the d4-h8 diagonal. I will have a look. Because if I cannot play 1 h4 or 1 ЙЬ4+ at the same time, then my attack is doomed to fail.’ ‘Another look. 1 h4 d5, this is the line that should work.’ ‘Hmm. That is quite an unclear varia-
‘2 hxg5+ fxg5. This is the critical posi- tion, so far. Ok, the Sh8 is hanging. Suppose I play 3 JLxh8 dxe4 aha. In the case of 4 JLxe4 1йгхе4 5 Дхе4 JLf5, then the JLh8 is hanging. I can play 6 Йе5’ ‘6...Hxh8 7 Sxf5. This becomes very complicated. Maybe White is ok, but I do not really trust this.’ ‘1 h4 d5 2 hxg5+ fxg5. What do I want to do? Give a check on the h-file. An- other possibility is 3 йсЗ, again, and now the Hh8 is hanging once again. 1 h4 d5 2 hxg5+ fxg5. What if I simply play 3 йеЗ with the idea that all the rooks are on the dark squares and I attack the ЙЬ8. Ok, what does Black play?’ ‘3..JLd7 seems like a reasonable move. What do I do then?’ ‘Can I play 3 flh4+ in this line — I think I already looked. 3 ЙЬ4+ gxh4 4 JLe3+ ФЬ5. The problem is always with this check on h4, that the king goes to h5.1 cannot prevent this.’ ‘Maybe I should have another look at 1 f4.1 think that now I am drifting.’ ‘I think I am going for 1 h4 and then I should find something in the l...d5 line.’ ‘2 hxg5+ fxg5 3 Jlxh8 dxe4 4 JLxe4, now the threat is flxh7 mate. So you will have to play 4...Wg6 or 4,..Wxe4 5 Йхе4 Af5 6 Йе5 JLxc2.’ ‘At least this endgame is not worse for White. But I do not think I have any advantage. What else?’ ‘1 h4 d5 2 g4, for instance? Any ideas? 2...dxe4 3 hxg5+ lS?xg5 4 Ae3+ <&xg4 5 JLe2+. No it does not work.’ ‘So really it should have to come from 1 h4 d5 2 hxg5+ fxg5, and now the $8,000 move. What is it?’
‘I have achieved everything. The king’s position is opened up and it can- not escape. With my bishops I defend h8 and g6. So I should find a move here. The rook on e4 is hanging.’ ‘Maybe 1 h4 d5 2 hxg5+ fxg5 3 Ag7+. S—'&gb is obviously not good, as then follows 4 S4e6+ blocking the c8-h3 di- agonal, so 4...ФЬ5 5 JLe2 is disastrous.’ ‘1 h4 d5 2 hxg5+ fxg5 3 Ag7+ Ф115. Now 4 JLe2+. Ah, the rook is still on e4, which is nice, so he has to play maybe 4...g4. Then 5 H4e5+ and if 5...^?g6 I’ve got 6 JLd3+ winning. This looks good.’ ‘1 h4 d5 2 hxg5+ fxg5 3 JLg7+ Ф115, forced.’ ‘4 JLe2+ ^g6. Let me just go back.’ ‘3 ^-g7+ ФЬ5, but then I might play some other move. 1 might play... 4 Sc4 maybe, attacking the queen. Or 4 2e3, still threatening JLe2+ and threatening to win the rook on h8. I mean this is defi- nitely the way to go. I cannot see any other way for White to play than 1 h4. Let me just check one more time.’ ‘1 Sh4+. I could not make it work. So 1 continue to attack with 1 h4. Any other moves. 1 i.e3, you can always play l...Wxe4 which seems to hold, as Black can develop very rapidly after this with ...d5 and ...JLf5. So it is too slow to cre- ate an attack. There are no other rook moves to reinforce my position. Dou- bling on the seventh rank is simply too slow. There are no pawn moves besides 1 h4 which goes for an attack, so 1 think I go for 1 h4, this is my move.’ 1 M/This is my final verdict.’ Tom Skovgaard ‘So we are certainly some pieces down. A bishop for a queen, but a lot of devel- opment and a heavy attack against the king. It is obvious that we need to look for a mate here. The rooks are active. We need to check all moves, like 1 3h4+ and threats on h7 and things like that. Maybe even ideas of Se6.’ ‘Let us take it from the beginning, 1 h4 also exists, to attack with the pawns.’ ‘So the black king cannot move. It has h5 and maybe g6. Black has no immedi- ate threats. Let us see if we can compose a mate here.’ ‘1 ПЬ4+ gxh4 2 JLe3+ ФЬ5, only move. Does this imply a mating attack. Maybe 3 JLf5.’ ‘1 Eh4+ gxh4 2 JLe3+ ФЬ5, yes it is the only move. We can also play 3 JLe2+, but then the king escapes.’ ‘But we can also play 1 JLe3. No, let us first finish the other line. 3 JLf5.’
‘Is there any mate here? 3 g4 hxg3 4 hxg3 and mate in next? No, no mate. The king has h4 now. So no immediate mate there.’ ‘So maybe 1 JLe3 first. That is a clear threat. So what can Black do. 1,..ФЬ5. Is that the only move. 1 JLe3 Ф*Ь5, are the any other moves. 1..T5 is a move. 2 Axf5. No, it is not possible. The rook is still on e4.’ ‘I...f5 and there is no mate. Or? 2 Hh4+ &g6 3 Sg7 mate. It is still mate.’ T...f5 is no good. Oh, wrong. The bishop is on e3.’ ‘Anyway, he cannot move his f-pawn, obviously.’ ‘What about other moves? 1 Д4е6, does that make any sense? Maybe 1 g4. No. 1 h4, maybe something like that.’ can move his d-pawn and then he can capture the rook on h3. So it is not really that good. But... 1 ПеЗ d5.’ “There must be something here. There must be something. Maybe that g4 move.’ ‘Let us go back to 1 JLe3, I like that move.’ “This is not easy.’ ‘Is there anything else than mate here?’ ‘I do not sec anything. 1 He8. 1 Hxh7+. No. No.’ ‘Let us check the first one again. 1 Sh4+ gxh4 2 JLe3+ ФЬ5 3 JLe2+ ^g6. No. It does not work.’ ‘1 h4. The threat is what. Nothing maybe. Hmm.’ ‘Maybe 1 Se3. That is another option. 1 the bishop stay on the strong square d4. 1 Ee3 threatening mate in one. He ‘1...ФЬ5 2 g3. No, that is no good.’ ‘Are there other mates than with the rook on the h-file. Maybe the pawns need to assist.’ ‘If we can capture on g5 and he recap- tures with his pawn we can give a check on g7. He will need to go to h5, but I do not see a mate there.’ “We need to get rid of both his pawns.’ (f6 and g5 — J.Aa.). ‘Maybe just 1 He8. Is there anything there?’
‘I have no ideas right now. Where is the mate.’ ‘1 JLxf6 is no good either.’ ‘Ok. 1 i.e3 &h5. (pause) Or l...f5.’ ‘Maybe I can just double the rooks on the seventh rank and mate him on h7. 1 Hf7.’ “There is something. It is also threat- ening Exf6. This is interesting. He can play l...d6 2 Hee7, threatening mate, and he cannot escape. 2...ФЬ5 3 h3 and we will mate him.’ ‘1 2f7. No way to protect it. I...^g6 must lose to 2 Eee7+. He can play l...Hf8, but just 2 Sxf8. He can play l...f5, that is an option, but we will just double the rooks anyway with 2 See7, threatening his rook and threatening mate. This looks good.’ ‘I am not sure I can calculate all the lines.’ What is the likely reply to 1 Sf7. If he just moves his queen, I will double my rooks. He needs to play 2...g4 then, 3 £еЗ+ ФЬ5 4 Hxh7+ 2xh7 5 2xh7+ Ф^4. There must be a mate here. Maybe simply 6 h3. Yes.’ ‘I have my move! I am not sure I can calculate everything in depth, but at least I am sure that this is the best move.’ 1 2f7 after 13‘Л min. Peter Heine Nielsen ‘1 Hh4+ gxh4 2 ie3+ ФЬ5 3 2g7 Wf3 4 gxf3 d5 and I see no clear white win. I used a bit of time on these lines.’ ‘1 JLe3 f5 also got me nowhere.’ ‘1 Sf7 d5 seems problematic. Besides this 1 do not see any obvious candidates.’ “Time to go I would think.’ ‘After 4...d5 in the first line I have 5 JLxh7, but 5...Sxh7 6 Sxh7+ ^g6 seems to be ok for Black.’ ‘1 Hf7 d5 2 2ee7 seems exciting.’ ‘At the moment 1 2f7 seems to be decisive. 1 am calculating 1 Hf7 d5 2 See7 ФЬ5 3 2xh7+ fixh7 4 Sxh7+ ^g4 5 f3+ ФТ4 6 ФЕ2’ and White wins. I will play 1 2f7.
Fritz 8 The first move, chosen immediately, is 1 Sf7. It starts evaluating the position as slightly worse. This is a matter of mate- rial,’ Mathias explained.The program has to search in order to make the correct evaluation, but notice that it finds the correct move quickly, even if the evalua- tion is not correct. It is something I al- ways try to explain to computer chess fanatics.’ The situation quickly became very stable, so we changed the exercise into Mathias Feist finding the trap, in- stead of Drify finding the right move. Mathias had trouble finding the prob- lem with 1 Sh4+ gxh4 2 JLe3+ Ф115 3 Sg7, but eventually he did find 3...Wf31, the trap in the game. But first he investi- gated 3...Wxg2+ and 3...Wa6. Also Mathias thought about 1 h4 with an attack. But Frit%_ decided on 1 Ш7. Proposed solution Test Position 10 P .Murphy-A.T urner Irish Championships, Dublin 1952 Sicilian Defence (Гhis game won the brilliancy pripe) 1 e4 c5 2 Clc6 3 d4 cxd4 4 2>xd4 2>f6 5 2ic3 e6 6 xe2 ib4 7 0-0 £xc3 8 bxc3 C)xe4 9 Jlf3 £jf6 9...£lxc3 is probably more accurate. 10i.a3^e5? This move is a mistake and should have been punished. 11 Cif5!? A spectacular sacrifice, but after the stronger 11 £}b5! d5 12 4tkl6+ (12 &d61?) 12...&d7 13 fiel White has a very powerful attack. 11...exf5 12 Wd6 &c4! 13 Bfe1 + Cie4 14 jLxe4! The only move that makes sense. 14...$ixd6 15^.xf5+?? 15 .£xb7+ &f8 16 ^.xd6+ &g8 17 JLxa8 was correct. White has good com-
pensation, but hardly anything more. 15...£*8 16 Axd6+ Фд8 17 ПвЗ g6 18 Ad3*g7 19Sae1 19...Wb6? This move still gives Black the better chances, but Black seems to be a queen up after 19...h5!? and now 20 Ae5+ (20 Se7 Sf8) 2О...ФЬ7 and Black does not have to weaken his kingside. 20 Ae5+ f6! 20...&f8 21 Axh8 Wd8 22 Se8+ Wxe8 23 Ag7+ ^xg7 24 Sxe8 gives White good winning chances as Black cannot free himself easily. 21 Ad4 Wc6? The only move was 21...We6! which would have stopped the attack at once. 22 Se7+ 22...ФН6 Black is mated after 22...Ф18 23 Se8+ <&g7 24 Sle7+ &h6 25 АеЗ+ ФЬ5 (25...g5 26 Sxh8) 26 Ae2+ ФЬ4 27 Se4+ Wxe4 28 Sxe4 mate. 23 31е4! g5?! Giving up the queen now with 23...Wxe4 24 Axe4 d5 was a fighting chance, even though White is clearly better after 25 Ad3 Ag4 (the only fight- ing chance is to prevent Ae2+; 25...Hf8 26 Ae3+ &h5 27 Ae2+ and 25...Af5 26 АеЗ+ ФЬ5 27 Ae2+ Ag4 28 f3 both win for White) 26 h3 Adi 27 Sei Af3 28 gxf3 She8 and Black can at least fight a little, even though the position is lost. Now White throws away a winning posi- tion and is awarded the brilliancy price for it. 24 Hh4+?? gxh4 25 Ae3+ &h5 26 Sg7 Wxg2+?? Black here misses the only saving move, and later books on combinations follow suit. 26...Wf3!! 27 gxf3 d5 28 Axh7 Sxh7 29 Sxh7+ Ф^б 30 Sh6+ and White is only slighdy better, as seen above in Yusupov’s answer. 27 Sxg2 h3 28 Ae2+ ФИ4 29 Sg4+ ФЬ5 30 Sg5+ and mate next move. 1-0
One way to win the position, and clearly the simplest, is the idea of dou- bling rooks on the seventh starting with 24 Sf7! Wxe4 (24...d5 25 Дее7 f5 26 JLxh8 and wins) 25 JLxe4 d5 26 Exf6+ &g7 27 _2_xd5 ДеЗ &xg5 27 Sg3+ Ф>Ь4 28 Seg7 Wd6 29 £e2 Af5 30 fih3+ i.xh3 31 g3+ Wxg3+ 32 fxg3 mate). The following combination is perhaps the most original I have ever seen. Seeing the idea of £3 and g4 can probably only be done by a computer. 27... He8 28 Hf7+ Фдб 29 g4 l_xg4 30 216+ Фд7 31 Ef4+ and Black is gone. It is even possible for White to delay the direct attack and build up his posi- tion with 24 h4!? 26 Де21! (26 i-xh8 dxe4 27 ±xe4 Wxe4 28 Hxe4 £f5 29 Де5 &g6 30 &g7 Sg8 31 JLh6 Дс8 is slighdy better for Black, and 26 £g7+ ФЬ5 27 ДеЗ i.g4 rather unclear) 26...JLd7 (26...Ф115 27 f3 Wd6 28 JLxh8 h6 29 Ad4 and White wins) 27 f3 Wc7 28 g4 Wg3+ 29 flg2 and now we have: a) 24...Wxe4 25 JLxc4 d5 26 JLd3 and Black’s king has not found safety in the exchange. b) 24...d5 25 hxg5+ fxg5 (25...ФЬ5 26 and White is winning. Black only has one saving chance: 24...&h5!?
25 f3! White has already brought his pieces into the attack, and now, when more pieces are needed, the pawns are excel- lent substitutes. Now we have: a) 25...b6 26 g4+ ФЬб 27 hxg5+ ^xg5 28 s£?g2 28...Aa6!? (28...Ab7 29 Ae3+ Ф114 30 Sg7! Wc5 31 Axc5 bxc5 32 Sei and mate follows) 29 Sg7+ &h6 30 See7 We6 31 Sxh7+ &g5 (31...Sxh7 32 Sxh7+ ^gS 33 Ae3+ Wxe3 34 Sh5+ Ф£4 35 Sf5 with mate) 32 Shg7+ Ф£4 33 Ахаб and White wins. b) 25...d5 26 g4+ ФЬб 27 hxg5+ ^xgS 28 Sg7+ Фкб 29 See7 We6 (the last try) 30 ^?£2! (what is so odd about this posi- tion, is that White has all the time in the world) 30...b6 31 Ae3+ Wxe3+ 32 ФхеЗ and there is no credible defence against Ф£4 and Sxh7+. 25...Wd6 26 Sf7! White is preparing for mate one move at a time. 26...Wg3 26...b6 27 See7 Wxe7 28 g4+ &h6 (28...&xh4 29 Af2+ ФЬЗ 30 Afi mate) 29 Sxe7 Даб!? 30 Axf6 and White wins. 27 Se81! (dearly the most effective move. 27...gxh4 27...Sxe8 28 Sxh7 mate. 28 Sxh8 We1+ 29 Afi d6 30 Shxh7+ Фдб 31 Sfg7+ &f5 32 Sh6 Феб 33 c4 and Black will have to give his queen up even though he can no
longer be said to have material superior- ity. Actually White has so much time in the starting position that he can waste a full tempo, despite being a queen down. So an alternative solution is: 24 Se3l? mate, but mainly attacking f6 from £3. 24...d5 24...g4 25 Д3е5!! and White wins. Also 24...d6 25 Sf7 g4 26 Eee7 wins for White. 25 Hf3 Дд4 26 Hxf6+ Wxf6 27 Axf6 Sae8 28 Ag7+ &h5 29 f3 Of course with the threat of 25 Hh3 29...Sxe7 30 fxg4+ &xg4 31 ^.xh8 and White is winning.
CHAPTER THIRTEEN What can we learn from the Tests? As said in the introduction, I never in- tended this book to be a scientific study. As an academic I have had it up to here with science messing with things that are supposed to be fun. Therefore I concen- trated on constructing the book in a way where it could be read in a train, an arm- chair or on the toilet, with numerous diagrams and many direct quotes. Also, this limits the pressure on this writer to produce a level of intelligence and insight so far unknown to him. Still, it does not mean that we cannot learn a lot from these exercises and the answers the test persons presented. So in this chapter I will make some observa- tions about obvious differences in think- ing patterns between the players of dif- ferent strength. Obviously there are many questions which could be posed to such tests. They include: Do stronger players calculate more than weaker players? What is the importance of pattern recognition? What can weaker players do to im- prove their game and thereby come closer to the stronger players? Questions of a different nature also spring to mind. In his works (Attack and Defence, among others) Russian super- trainer Mark Dvoretsky chooses to dis- tinguish between intuitive and logical players, rather than to regard them as tacticians and positional players. This way of looking at the players will perhaps give us some additional understanding of what is really happening in the tests. There is also the question of the com- puter contra the best human players. The situations in which the computer is stronger are many, but there are also situations (some of them surprising) where the humans have done better. But let us start by looking at each sin- gle participant and see how well they did, and try to come to some conclusions as to why they did well or less well in cer- tain exercises. Then we will discuss the remaining issues afterwards. Sten Vesterli Sten is in many ways the most heroic participant in this test. As far as 1 know he played his first rated tournament in February 2004 and did poorly. So for
him to participate in a test as the begin- ner was something not everybody would have done. But Sten actually did pretty well con- sidering his obvious weaknesses. None of the exercises were embarrassing to him in any way, even though he had some obvious flaws in his analysis. Л good example of this is exercise 7, where Sten suggested 15 Sxc8+ 2xc8 16 ^.xa7. This I would say is a common mistake among beginners who understand only just a little bit about chess. Their major weakness is unawareness or unfamiliarity with simple tactical twists. Like this one of capturing a pawn on a7 and then not seeing 16...Sa8 regaining the pawn with the initiative. This was also apparent in exercise 4 when he completely missed the idea of 1 Sxg7+ <i?xg7 2 JLh6+, which all the others saw. All the way through Sten was trying to understand the positions based on ab- stract ideas, a method that, even though useful, can never be enough in itself, as awareness of tactics is based on pattern recognition and calculation. And tactics, minor or major, do decide a large num- ber of all chess games. Especially amongst amateurs. Positionally Sten actually did reasona- bly well. As with many weaker club play- ers, it is impossible to say how good they really are positionally, because their tacti- cal oversights always overshadow the position aspect of their game. Whether Sten is a tactical, positional, logical or intuitive player is impossible to say. A beginner has no distinct style, only a limited knowledge. Not surprisingly Sten was not able to solve any of the exercises completely, but he managed to give a good answer to many of them, especially no. 10. Here it was noticeable that he did not see the quiet move 26 Hg7 after 24 Eh4+ gxh4 25 JLe3+ ФЬ5, which he did see. Here he simply believed that the at- tack had failed. It is clear that he did not see further than direct threats. Things like quiet moves have yet to reveal them- selves to him. Sidsel Heeg Sidsel has played chess for more years than Sten, but still her level is not enor- mously higher on paper, though I am sure that she would achieve a gigantic score in a match with him. Sidsel is the prototype of a standard club player who
never really improves much. And the explanation is easy to see from her think- ing patterns. Of all the players participat- ing in this test Sidsel is the one seeing the fewest lines. Only in exercise 4 and in exercise 10 does she actually talk about variations. And they are very short. The reason for her to think in the way she does, I think, has probably very litde to do with the fact that she is a woman. I think it is a matter of tactical vision. Tf we look at the obvious mistakes she committed, then we can see what the problem is. In this position she overlooks that Black can play 3...JLg6, so she expected this to be a mate. We see the same pat- tern arising in exercise 5, where she drops a rook with ...ttc8-c4, so fixed on Wxc2 that she overlooks ...Wxc4. In ex- ercise 8 she does not see that 9...dxc3 is answered by 10 JLxf7+. In exercise 10 she overlooks that the king can retreat to g6, a similar mistake to that in the dia- gram above. Still, despite mistakes in all of the tac- tics she presents us with, she manages to solve exercise 8 and give the right first move in exercise 4, as well as give the second best answer to exercise 1, just like Yusupov and Ivo Timmermans, better than Jesper Hall. So there is obviously some genuine talent for chess, and pos- sibly mainly dynamics. But she will not be able to get the full benefit of this in her play before she works hard on, not just improving, but actually developing a tactical vision. Jesper Hall Now we already know that Jesper Hall with his Elo steady circling around 2500 for many years is a strong player. He has won games against such renowned play- ers as Krasenkow, Van Wely, Agrest and Sadler — all of them over 2600, and two of them even over 2700 at some point. So why did he only get three exercises right? The answer is to be found in the way the exercises are structured and in his thinking pattern. Here comes a somewhat controversial claim from my side: even though Jesper does seem to talk a lot about variations, he simply cannot calculate very well (J am tempted to say not at all, but this could be misun- derstood if taken literally). Two of the three exercises he solves, he solves in- standy. The third he backs up with varia- tions of litde value. In the pure calcula- tion exercises he does badly. Exercise 1, which is about candidate moves, he comes up with possibly the worst choice (though also the move played in the game) without really back- ing it up with strong variations. What is important to notice in his answer to this exercise is that he never moves beyond 19 ^g5? to additional candidates. He does calculate one line, but cannot make it work. Still he does not look for new moves.
In exercise 4 he makes it quite far, see- ing 5...fic5!!, which of course is an achievement. So though he does not solve the exercise, he does fairly well. The third calculation exercise, exercise 8, is a complete disaster for Jesper. His move 9...£kl5?! is probably among the worst possible candidates in the position. And this despite the fact that he sees the best move 9...£ig4!. So why does he not decide on this move, winning a pawn and giving a winning position? The an- swer is easy — the lines are too confusing to him. He does spend some time calcu- lating 9...dxc3, but does not see 12...Феб!, the real point of this move. Again, this not an easy idea to see. But with Jesper, who is a truly original and imaginative person, a true artist, I had actually expected him to find this counter-intuitive idea. Also, in exercise 10, where he is given as much time as he can ask for, he only investigates one idea. He does find the final position after 24 Hh4+ but then makes this strange evalua- tion, that White is winning and considers the exercise as solved. This is of course far from the truth. That Yusupov makes similar mistakes tells us something about the truly unconventional nature of this exercise. It is not that Jesper does not find the tactical ideas. He sees both the idea of trapping the white queen in exercise 8 and the stalemate trap in exercise 4. Also he instantly sees 24 Sh4+ in exercise 10. What is striking is that Jesper as a rule has problems moving away from these original ideas. The reason for this is not so difficult to find. I remember in the summer of 2000 Jesper and I were both attending a seminar with Mark Dvoret- sky in Copenhagen, where Mark re- peated this idea of logical and intuitive players. Jesper asked what you should do if you were an intuitive player.There is no other way than work,’ Mark replied. Jesper’s quite commonly uttered profan- ity I will keep out of this book, but it has something to do with visiting the bath- room. So Jesper considers himself as an intuitive player, and certainly he shows some clear indications of being so. His calculation is poor, he does not logically deduce the ideas, but rather opens his eyes and sees them on the board. That Jesper, as a Swedish player, never re- ceived regular training has made him the man he is today: a very talented and dan- gerous player with a strong intuition, who can beat even world class players, but basically cannot calculate. If Jesper trained seriously and effectively in calcu- lation for a longer period of time, I pre- dict that he would not just become a grandmaster, but he would also quickly become a rather strong grandmaster. Tom Skovgaard Daddy Skovgaard is standard club cham- pion material in his small suburban chess
chess club. He is not a great chess talent and would not claim to be so. Rather he is a talented jazz pianist and also compe- tent in his profession, beyond being in his fourth decade of chess. With a chess- playing brother and son it is easy to spot a social angle to his chess activities, but Tom also simply likes chess in itself. In the test he shows a number of weaknesses. First of all nothing comes for free to him, except a few basic tacti- cal ideas. His intuition is ripe for the bin, just to exaggerate a little bit. In exercise 7 we see how he struggles to find the right spot for the bishop (h3) before executing it in a wrong way. I am certain that if he had had more time, he would have found the best move order as well. That he has no intuition I base on some of the moves he considers, such as 24 Set? in exercise 2. This move is truly horrible and does not correlate with his first considerations in this exercise. And certainly the calcula- tion is not impressive either. Still, despite this, Tom gets three exer- cises right and finds some of exercise 4, as well as a perfecdy good idea in exer- cise 1. His performance is not affected by the high number of completely awful ideas and variations he produces through the exercises or his lack of chess intui- tion. Actually he equals Jesper Hall in performance, and is one of the few to solve exercise 10 (together with Peter Heine Nielsen and Frify arguably the two strongest participants in the test). Before he finds 24 Hf7!l he comes up with such ideas as 24 JLe3 ФЬ5 25 g3 which, however, is immediately dis- missed. This is actually a strong indicator of Tom’s thinking style. With no help from divine inspiration or intuition, he simply tries a lot of ideas that come into his head; a truly logical player, though not a very strong one. His lack of knowledge of some tactical themes (9...dxc3 10 JLxf7+ in exercise 8) is obvious, as well as the sometimes low level in his calcula- tion. But just like Frify who calculated 2 million moves per second in the match against Kramnik, Tom has a good feeling for throwing all his garbage ideas in the bin, and focusing on the ideas that actu- ally makes sense. So Tom is indeed a logical player. Not a very strong one, but also not a very weak one.
Peter Skovgaard Peter is the only junior player among the eight tested humans (whether Frit% is a junior or not is a discussion 1 will not engage in.,.) and should probably be pre- dicted to finish in the middle of the field. It could be argued that he only solves one exercise, but I think that would be unfair as he does very well on many ex- ercises, especially no.2, where he did bet- ter than Frit^ by a long way, and only faced problems towards the end when he was running short of time. There are some clear symptoms that Peter is a teenager: most notably his very long variations. Older players somehow think differently, more abstractly, even when they are calculating. Peter is run- ning wild down every possible variation without structure nor sense of purpose, in search of something, anything (see exercise 6 especially). I think that this is because of his age. In my work with jun- iors over the years I have learned that they do think very concretely indeed. Even my own games from my junior days are remembered only as a long collection of tactics and variations, while these days, standing on the verge of my thirties, I calculate more slowly and care- fully, and use tools such as goals, con- ceptual thinking and psychology much more intimately. Peter did show some clear weak- nesses, as in exercise 1 when, after his suggested 19 £ig5? see following diagram he completely missed 19...exd6, which is the only playable move. The same goes for exercise 8 where he missed another only move: 10 ^3f3 after 9...£ig4. Still, this is actually the exercise he solves. Of course he also overlooks other tactics, but these two shows a clear deficiency, which 1 would link to being young. There are other signs of youthful im- pulse in his play. In exercise 9 he cannot find more than a draw after 8'/z min., but still decides to execute his move. Impa- tience? Maybe, or maybe just lacking experience. Also in exercise 5, where he is trying desperately to make the piece sacrifice with 21...£3xe4 22 Wxc2 Дхс2 23 JLd3 Sxf2? work, he shows sign of youth, first of all he never considers the ex- change sacrifice. Perhaps because he does not understand exchange sacrifices? Certainly an option; but more impor- tantly, he really puts pressure on himself to make the piece sacrifice work, and in the end decides that it does. 1 felt a little like watching a Hollywood conspiracy film when 1 was listening to Peter, as it seemed that he had already formed his conclusion and only needed to prove it somehow. This was generally a characteristic for his calculations. They seemed to be structured in a way to prove his assumptions about a position more than for investigation.
for investigation. Now I shall stop pointing finger at Pe- ter, but I do so only because I feel that these features in his game are very youth- ful. Another thing that often shows with young people is talent. And talent Peter has got plenty of. I was so hoping that Peter would make it all the way in exer- cise 2, when he came up with 24 JLc4!!. But even though he failed to do so, he did show good promise there. Generally Peter said a lot of really good things, but the exercises were probably just a little too difficult for him, and he never got close to some of the solutions. It should be remembered that though Peter is rated ca. 2000 in FIDE Elo, he is somewhat lower in national rating, which is usually the more accurate indicator. But he achieved one correctly solved and a lot of half-solved positions. Peter Heine Nielsen ‘It is exercises,’ Peter explained, ‘and they do not suit my personality, so I guess it is quite normal that I do badly. Especially since I am most likely having a bad day (laughs).’ With his 2600+ rating Peter was the strongest participant in this experiment, and as such could probably have been expected to solve more exercises than anybody else, excluded. Actually this was not the case and he himself gave a very good explanation: ‘I am an intui- tive player,’ he said after the seance.’That means that I look at the position and more or less come with my best guess.’ This should of course not be understood to mean that he does not calculate at all, but only that his method of finding his moves are based more on a good feeling for chess than actual problem solving. There was one move in a game of Pe- ter’s, after he had participated in the test, that really impressed me. P.H.Nielsen-McShane Copenhagen 2003 Grunfeld Drfence 1 d4 2 c4 g6 3 £ic3 d5 4 cxd5 &xd5 5 e4 2ixc3 6 bxc3 c5 7 Ac4 Ag7 8 ?3e2 <5ic6 9 ДаЗ cxd4 10 cxd4 Wa5 + 11 £d2 Wd8 12 d5 £e5 13 ДсЗ 0-0 14 ДЬЗ Wb6 15 f4 Cid7 16 Дхд7 Фхд7 17 Hc1 Ed8 18Пс4!1 This reorganisation of the pieces took
Peter 50 minutes to find. The young Englishman had just played an im- provement on Peter’s home analysis (the two of them had an ongoing theoretical discussion in the Griinfeld over the summer of 2003 in different tourna- ments, a battle won by Peter 2’/i-1/?). The idea behind the move is to put the rook in front of the queen in order to pene- trate to the seventh rank. 18...e5 19 Wa1 19...f6? This fatal weakening of the light squares costs Black the game. 19...<&g8 was a better move. 20 Wc3 exf4 21 &xf4 £>e5 22 Hc7+ &h8 23 Hf1 ^d7 24 2)e6 Hdc8 25 Zxf6 Пхс7 26Sf8+! McShane had overlooked this when he played 19...f6 and failed to see it al- most all the way to the end. 26...Sxf8 27 Wxe5+ 1-0 Black is mated and therefore resigned. 18 Hc4!! is a very beautiful move which cannot really be calculated as such, but needs to be found by a combination of logic and intuition in the mix that fits the individual player. Peter, being a very intuitive player, calculates a lot of lines, but generally trusts his emotional im- pression. Therefore moves like these can be expected to be found by him. Peter did, in my opinion, do reasona- bly well in the test. He solved 5 of the 10 exercises, only beaten by Yusupov with 6 and Frit% with 8. In exercise 4, Peter solved two out of the three steps the exercise was convemed with. After 1 Exg7+ Фхд7 2 Ah6+ &xh6 3 Wxf6+ JLg6 4 g4 Wa5 Peter decided on the very mysterious 5 d5?. This can be met with 5...Wc5+ and Black has no problems. The interest- ing factor is that Peter simply ran out of time after discovering 5 h4 Дс5. Had he
had more time he would probably have found 6 Wh8! winning. Instead he came up with the idea 5 d5 Wxd5 6 h4, when Frite? comes up with the following nice drawing line for Black: 6...Sc5 7 g5+ Wxg5+ 8 hxg5+ Exg5+ 9*h2 Hg2+! And we have what the Russians call’etemal rook’. White cannot escape the checks on the g-file, so he will have to play 10 Фхд2 stalemate. In exercise 9, Peter analysed 81...b2 and 81...Sd2 and actually came up with some nice ideas in both lines. After we had turned of the microphone I asked him for additional ideas, to which he replied’Oh yeah, 81...Sh5 of course. Prophylaxis.’ Peter is well known for his opening preparation and great knowledge of the opening, but in this test it seems that his good memory actually worked against him. Exercise 5 and 7 were both solved easily because he knew the solutions al- ready, but in exercise 2 prior knowledge of the position did not help him at all, and in exercise 8 it seems that it worked against him. This is one of the two as- pects of his play he should think about. The second he phrased himself after the test: ‘candidate moves’. He was probably mainly thinking about exercise 9 there, but I think he is right. That it was a bad day for the Danish no.l is clear to me. We had to push the solving of exercise 10 for a later occasion (where he did it himself and wrote down his thoughts) and he was one of only two humans to solve it. Ivo Timmermans The Dutch Doctor gave an inspired per- formance in the test. Only in exercise 2 did his attempt fail, and as such it fully failed. His performance in exercises 1, 6 & 10 is typical for his mistakes in this test. In all three of them he did well, ex- cept he did not find the right candidate move. Though he does not seem to me to be an intuitive player, he generally has a problem with tactics. In character I would put him alongside Tom Skov- gaard, only on a higher level. Ivo really needs to solve problems logically. This is the explanation why his thinking often makes such nice reading. Contrary to a lot of the other participants, his logic is clean, clear and easy to follow. Where all
players with lower Elo than him start on new variations constantly without con- cluding on the former lines, you can find Ivo in a situation like the following: ‘1 Hh4+ gxh4 2 JLc3+ ФЬ5, there is nothing you can put in between. 3 Sg7. If 3 Sg7 does not work I might look for other moves. The threat is JLc2+. So what would you do to stop it? One idea is maybe 3...Wf3, a desperado, which looks quite interesting. Hmm. 3...Wf3. 4 gxf3 is probably forced. Is there anything else? 4 gxf3, and then the next move is 5 f4 and JLe2+ comes again. But then on 5 f4 you play 5...JLg4 (after 4...d5 — J.Aa.) keeping the bishop on the g4-dl diago- nal. I will look at something else. 3...Wf3, that is a bit of an odd move. Maybe even 3...Wxg2+. Let me see. 3 Sg7 in this po- sition. Let me see if 3...Wxg2+ is a prob- lem. No, let me first solve the problems with 3...Wf3.’ And so on... Also, his positional exercises give the impression of having been solved more than found or seen. The contrary example to this is Jesper Hall, who seems to be unable to solve 2+2, if not assisted by his enormous chess talent, his intuition. In exercise 7 Ivo starts off with the following comments: ‘I think I know the solution. The trick is that White has the bishop pair and pressure on the queenside, for instance on a7 which is hanging and which Black will have to do something about. And the only open file is the c-file, which he would like to control. Now you control almost all squares of it, up to c7, and the idea is that we do not want to allow Black to play ...Excl, so you will have to either develop the bishop from fl or take on c8.’ Even though he says he thinks he knows the solution already from the be- ginning, he still works logically with a clear assessment of the position. This is well in line with my personal knowledge of Ivo’s character. He is a very disci- plined and intelligent man, who has the aptitude to acquire countless abilities, though not clearly talented above aver- age in them. This guy is a decent piano player, guitarist, Doctor (obviously), with an MBA from the highly prestigious Henley School in London. He is a good amateur chess player. He has run a mara- thon in close to 3 hours, he has done two Ironman triathlons. He speaks the following languages decendy: Dutch,
English, Swedish, French and German. Soon he will probably be speaking Span- ish as well. He just needs to get around to it... So his solutions here are the result of training. And this is the way they should be read. Not talent (not that he does not have any, it is just less obvious than with some of the other participants), but work. Artur Yusupov Neither Artur, nor his trainer of many years and later collaborator Mark Dvoretsky, thinks that Artur has’any special talent’. When they say this, they compare him with players like Peter Heine Nielsen, who also does not have any particular talent. Obviously they are comparing him with Karpov, Kasparov, Kramnik, Anand and similar talented peo- ple. It reminds one of the old story of Spassky talking about Korchnoi, pub- lished on the internet by Spraggett. Spassky apparendy said that Korchnoi had the best knowledge of the opening; he knew the endgame better than any- body else; he had more energy than any- one, and fought ferociously; he calcu- lated immaculately and his strategic in- sight was extreme. There was only one thing he was lacking in order to become world champion — talent for chess! At the other end of the spectrum we have Botvinnik’s old statement about Reshevsky: ‘He had the greatest talent in my generation. But it did not matter. I worked so much harder!’ Or Kamsky’s statement that chess is 2% talent and 98% work. The same goes for Artur (who’does not have a very strong intuition’ — Mark Dvoretsky), who worked hard together with Dvoretsky from around the age of 15 and over the next decade elevated himself to an impressive third place in the world. Artur did not approach the test very seriously. When he played his immacu- late solution in exercise 2, he said he had not been convinced that it was correct, but had just found it so tempting that he had to play it. Free from any kind of pressure to do well, he actually did pretty good. Exercise 1 is technically not solved, but he did see the option of 19 JLh6!, but decided to focus on 19 dxe7 Wxe7 20 JLg5, which is the second best option, when the time ran out. That he solves exercise 4 is very im- pressive, no matter who you are. This clearly shows that he has been training disciplined calculation at one time, even if he no longer considers himself a pro- fessional player, and no longer trains regularly at chess. In exercise 8 and 10 we see him at his weakest. The muddy waters clearly do not suit him, and I cannot help but think of some of his games with Kasparov, where deeply complicated positions were too difficult to him. When there are too many options, he actually seems too nar- row in choice. This is the only clear weakness it was possibly to find in Artur’s decision making in the tests. Exercise 3 was too difficult for every- one. Though brit% finds the right move, it never really understood why it was right. All the humans wanted to attack c6, even though none of them could make it work in practice. So all in all, Artur delivered the strongest human performance. Not sur-
prisingly, as his absence from the world’s top 100 is similar to that of Ulf Anders- son. Both hardly ever lose any games, but they are so peaceful in nature now that they hardly ever win any either. Fritz 8, test version 15 That Frit% would do well in this test was obvious from the beginning. Besides being so strong by now that it has drawn matches with both Kasparov and Kram- nik, it was also a useful helper to the au- thor in the collection of the original ex- ercises. Exercise 1 was originally found by Frit%. Exercise 2 was checked with Frit^. Exercise 4 was checked with Fritp Exercise 8 was originally found by In Exercise 10 I found 26...Wf3! my- self, ruining the original puzzle from Re- infeld’s 1001 Brilliant Ways to Checkmate. Then Frits', with some assistance, found all the additional solutions. Actually, after 24 h4,1 do not believe any human would be able to find the details. So Frits'. has come a long way for sure. It still has problems with long-term positional planning, as can be seen in exercise 3 and exercise 5. But in exercise 3 it finds the right move by a coinci- dence, as the a-pawn is in danger. These kind of coincidences often work in Fritzs favour, so we should not discredit its solving of this exercise for that rea- son, as this is a general feature of its de- cision making: Luck. Some conclusions - Calculation As said, there are some questions it is obvious to ask when performing such a test. The most common of these is: Do stronger players calculate more than weaker players? Actually it is not so much a commonly-asked question, as it is a sim- ple assumption among weaker players, while stronger players simply do not care. I have always intuitively agreed with David Norwood, who claimed that stronger players do not calculate more, but they calculate the right things. It turns out that I am both right and wrong. If we compare Sidsel Hoeg and Sten Vesterli with Peter Heine Nielsen, then it is obvious that Peter does calculate more than these weaker players. Actually Sidsel and Sten cannot really calculate at all, as they lack tactical vision (one important step in the development of a chess player), so their thoughts do not include that many variations. But this is not so interesting; we should compare Sten and Sidsel with Tom and Peter Skovgaard, because this is where the former should aspire to go with their chess. It seems to me that the basic aspect of seeing more possibilties and recognising tactical pat- terns are central to the difference be- tween the two groups of players. But if you compare Peter Heine Niel- sen or Jesper Hall with Tom and Peter Skovgaard as well as Ivo Timmermans, then you will not necessarily find that more moves were investigated by the stronger players. Actually I find it more interesting to compare grandmasters against non- grandmasters (so that Jesper Hall is sat next to Peter, Tom and Ivo). The grandmasters Nielsen and Yusupov did not repeat their variations from the be-
ginning all the time. There can be many reasons for this, but it is obvious to me that these quickly repeated lines do not improve the tactical vision nor the calcu- lation, but rather disturb it. So either they repeat the lines from habit, which takes up their time and attention, or they re- peat the lines because their tactical vision is so weak that they cannot sustain the positions for very long in their mind’s eye. If that is the case it is something that can be trained rather easily. Jonathan Tisdall proposed a method called stepping stones in his acclaimed book Improve jour Chess now!. The idea is basically that after something like (in exercise 4) 1 Sxg7+ &xg7 2 ^.h6+ ФхЬб 3 Wffo- £g6 4 g4 Wa5 5 h4, you are at the end of a forced line. Now you have this position in your mind’s eye, as a new starting point for calculation. Then we start looking for candidate moves. I truly believe in this method. Maybe not as a rigid way to cal- culate, but in the general idea that it is necessary to be able to work with the positions in the mind’s eye, and not move them around on the board all the time (even if you only imagine that you do so) when you calculate. 1 am pretty sure that control over this technique, which seems to be more or less natural to strong grandmasters, would help these four players in the middle group improve their game. Another difference in calculation is that the strong players (this time we will include Jesper Hall) do not calculate a lot of garbage. Their tactical vision is much stronger than the group of average play- ers. The four strongest humans realise in exercise 8, that after 9...dxc3 White has a standard tactic with 10 JLxf7+. Tom and Peter Skovgaard both miss this, even though we can see from their own games that they are definitely of the type we would call tactical players. In exercise 4, only the three titled players find the cunning defence 5...Sc5!. The middle group did not even under- stand the idea when I showed them the move on the board. Or at least it took some time. This kind of imagination fits well with Avni’s division of tactical chess development into three phases: 1. Everything, may be right; every- thing is possible. There are no principles, no guiding laws.
2. Everything that falls inside the frames is possible; the rest is wrong. 3. Everything that falls inside the frames is possible; the boundaries be- tween the frames and their surroundings are not rigid. So what is outside the frames can also be possible. What we are dealing with here is a case of the middle group to some extent belonging to phase two. This also ex- plains the sometimes rather long varia- tions they present us with. When the possibilities are very few, then you quickly calculate very long variations. The only problem is that they often turn out to be false. The right medicine for the players in the middle group is probably to solve harder combinations and to work with such books as Nunn’s Endgame Challenge (Gambit 2002). For the weaker players, solving simpler combination books would probably be very good. So no, strong players do not calculate more than average players. But yes, both strong and average players calculate more than beginners and weaker players. Pattern recognition Pattern recognition, prior knowledge and so on... Most very strong players are strong because they have studied chess intensively. They have a good knowledge of the openings, often with new ideas of their own. They know the endgame pretty well, even though they most often cannot match an encyclopaedia. And then they appear to be calculating the right moves again and again. Especially tactically, patterns come instantly to well- educated players. They instandy see the rook sacrifice in exercise 4, the bishop sacrifice on f7 in exercise 8 and similar ideas. Only the two grandmasters saw the possibility of 19 JLh6! in exercise 1. At the same time as a player develops tactical vision and knowledge of standard combinational themes, he also develops a feeling for the pieces’ coordination and for where they belong. This can be seen in exercise 7, where the simple fact that the bishop belongs on h3 was closed land to the three weakest participants, while the four strongest found it more or less instandy. Tom Skovgaard, the mid- dle guy this time, worked it out, but did not get his coordination between the pieces to really work. Another advantage stronger players have over weaker player is the feeling for material and compensation. When I was under 2000 Elo I never sacrificed mate- rial for positional compensation or just for an attack, while these days I have little respect for material. As Yer- molinsky and others have said. Material is just another positional factor. Computers It is obvious from the test that Frits; and similar programs are no longer toys, but strong chess-playing programs that will eventually be stronger than humans. The possibilities for improving the search depth seem to be limidess, while humans learn slowly as a species. Still, the time when the computer dominates the hu- man is probably far into the future. For the search depth to increase so much that it compensates for the computer’s lack of understanding of certain long- term factors in chess, the processor and RAM need to be increased immensely.
This is why the programs that have played matches recendy have all been multi-processor programs. The difference between humans and cofnputers is more and more becoming the understanding of compensation (see exercise 5) and not the basic positional aspect of chess, though computers still do badly in closed positions where long- term planning has to be produced. Here are two examples of other com- puter malices. Kramnik-Deep Fritz Man v Machine, Bahrain (game 2) 2002 Queen’s Gambit Accepted 1 d4 d5 2 c4 dxc4 3 ^f3 2if6 4 e3 еб 5 j*.xc4 c5 6 0-0 a6 7 dxc5 Wxd1 8 Exd1 i.xc5 9 *f1 b5 10 Дв2 l_b7 11 £>bd2£ibd7 12^>b3 12...Af8? Fntij has a good feeling for where the pieces belong, so it naturally assumes that White will put his bishop on the most natural square, b2. In order to do so White will have to play 13 ^3bd2. So Black can play 12...JLe7 and 12...JLf8 equally well. Only, Kramnik is wiser than this, and when Fn/^ chooses the horrible text move, Kramnik exploits his chance. 13 a4 b4 14 2>fd2 &d5 15 f3 ikd6 16 g3 e5 17 e4 &e6 18 2>c4 Дс7 19 £еЗ a5 20 £>c5 &xc5 21 £xc5 2>d7 22 2>d6+ &f8 23 £f2 l_xd6 24 Zxd6 *e7 25 Zad1 Ehc8 26 ДЬ5 ?ic5 27 £c6 &c4+ 28 *e1 &d3+ 29 Zlxd3 £xd3 30 £c5 Дс4 31 Sd4+ Ф16 32 Sxc4 Exc6 33 Де7+ Фхе7 34 Sxc6 *d7 35 Sc5 f6 36 &d2 &d6 37 Hd5+ £>c6 38 &d3 дб 39 &c4 g5 40 h3 h6 41 h4 gxh4 42 gxh4 Ha7 43 h5 Sa8 44 Hc5+ *b6 45 Sb5+ Феб 46 Hd5 Фс7 47 *b5 ЬЗ 48 Hd3 Да 7 49 Hxb3 Sb7+ 50 Фс4 Да 7 51 ДЬ5 Да8 52 &d5 Даб 53 Sc5+ &d7 54 ЬЗ Zd6+ 55 &c4 Sd4+ 56 ФсЗ 3d1 57 Sd5+ 1-0 More or less the same thing happened one year later. Kasparov -Fritz X3D New York (game 3) 2003 Slav Defence 1 2)f3 2)f6 2 c4 e6 3 £ic3 d5 4 d4 c6 5 еЗ a6 6 c5 2ibd7 7 b4 a5 8 b5 e5 9 Wa4 Wc7 10 £a3 e4 11 2>d2 kel 12 b6 Wd8 13 h3 0-0 14 2ib3
14...£d6?? Frii^ is of course worse, but unable to find a long-term plan... it tries a trap? Hardly. But the move is still an indica- tion that there are positions where com- puters are not doing very well, (dosed positions are one of these. 15 ДЫ &e7 What did Frit% achieve. Nothing, of course. 16 £)xa5 2)b8 17 ib4 Wd7 18 Sb2 We6 19 Wd1 (hfd7 20 a3 Wh6 21 £>b3 JLh4 22 Wd2 2if6 23 *d1 Феб 24 Фс1 Zd8 25 Sc2 ?lbd7 26 ФЬ2 4tf8 27 a4 &g6 28 a5 2ie7 29 a6 bxa6 30 £>a5 Zdb8 31 g3 Фд5 32 Фд2 Wg6 33 Фа1 &h8 34 £>a2 £d7 35 ФсЗ £>e8 36 vlb4 Фд8 37 HM Фс8 38 Za2 i.h6 39 £f1 We6 40 «di 41 Wa4 ФЬ7 42 2lxb7 Hxb7 43 2>xa6 Wd7 44 Wc2 ФИ8 45 Sb3 1-0 What can we learn from computers? I think we have already learned a lot about chess tactics and about defence. Kas- parov is right when he says that he per- sonally was the last world champion of classical chess. And no, it has nothing to do with advanced chess (how could any- one ever put this belief into his mouth and then argue against it?), but about opening preparation and general under- standing of the game. Recently top-GM Barcev lost a game in 34 moves, where all of it and a few moves more were pre- pared in advance by his 19-year-old op- ponent and his computer. We have seen such games in the past, where Po- lugaevsky would prepare some stunt from home, but now it seems like every- body is doing it. Chess has changed and we understand it better because of the computers. But that does not mean that we can learn anything from the way computers think. Whenever someone tells me chess is only calculation and uses computers as argument 1 laugh my (censored) off. The day we can calculate 2 million moves per second this argument will be correct. But hardly before then. Still, with a few moves per second the best humans are doing well against the computers. And the reason is that we think differently from them. Obviously tactics are mainly concrete and should not be understood differently. But chess is not only calcula- tion and intuition. It is also logic, under- standing of where the pieces belong, and long-term strategy. Here humans still have a great advantage over computers. If we want really fair matches between humans and computers, we actually need to play FischerRandom. Because in a normal game, either the computer gets out of all the long-term decisions by immaculate opening preparation (using its openings book) and thereby avoids its main problem, long-term strategy, simply by having all the pieces developed for it by humans in advance. And without an opening database the human has prior theoretical knowledge that would leave him with an unfair advantage. But whatever way future matches are organised, beware of one thing: The computers are coming! Before 1 sign off I would use the last chance to thank all the participants in this little project, as well as the reader for spending some time in their company. I hope the result has been rewarding and entertaining.