The ChessCafe Puzzle Book 2: Test and Improve Your Positional Intuition

The

Chess Cafe Puzzle Book 2 Test and Improve Your Positional Intuition by

Karsten Muller Foreword by Susan Polgar

2008 Russell Enterprises, Inc. Milford, CT USA

The ChessCafe Puzzle Book 2 Test and Improve Your Positional Intuition © Copyright 2008 Karsten MUller All Rights Reserved. No part of this book may be used, reproduced, stored in a retrieval system or transmitted in any manner or form whatsoever or by any means, electronic, electrostatic, magnetic tape, photocopying, recording or otherwise, without the express written permission from the publisher except in the case of brief quotations embodied in critical articles or reviews. ISBN: 978-1-888690-43-9

Published by: Russell Enterprises, Inc. PO Box 5460 Milford, CT 06460 USA http://www.chesscafe.com [email protected] Cover design by Janel Lowrance

Printed in the United States of America

Table of Contents Foreword Signs & Symbols Introduction I . Motifs Good and Bad Bishops Domination Outpost Undermining Opening the Position Blockade Improving Piece Placement Prophylaxis A Second Front Counterplay Positional Exchange Sacrifice Simplification Weaknesses Weak Color Complex

4 4 5 6 6 12 17 23 26 29 31 37 41 45 48 52 58 66

2.Tests Test 0 1 Test 02 Test 03 Test 04 Test 05 Test 06 Test 07 Test 08 Test 09 Test 1 0 Test I I Test 1 2 Test 1 3 Test 1 4 Test 1 5 Test 1 6 Test 1 7 Test 1 8 Test 1 9 Test 20

72 72 77 81 85 89 93 97 101 1 05 1 09 1 13 1 17 121 1 25 1 29 1 33 1 37 141 1 45 1 49

Exercise and Test Solutions Score Chart Bibliography

1 53 274 275

Foreword This is a unique training program that aims to help intermediate and advanced players by offering a large number of examples carefully selected by the author, German grandmaster Karsten Muller. While there are many books and software programs available to assist chess players in improving their tactical ability, there are relatively few that focus on strategic and positional considerations. Working through these positions and exercises is a great way to improve your positional understanding. I recommend it! Susan Polgar New York, May 2008

Signs and Symbols 1 -0 0-1 �-� +

•

! !! ??

!? ?! ;!; ± +-

';: :;: -+ 00 00

-+

D. Cl

ol m ch wch corr

White wins (Black resigns) Black wins (White resigns) draw agreed check mate a strong move a brilliant or unobvious move a weak move, an error a grave error a move worth consideration a dubious move an equal position White stands slightly better White has a clear advantage White has a winning position B lack stands slightly better B lack has a clear advantage B lack has a winning position an unclear position with compensation with the initiative with an attack with the threat or idea of better is Olympiad match championship world championship correspondence game

4

Introduction Why is it so much easier to find books that focus on tactical exercises rather than positional tests? One reason is that it is easier to locate suitable examples of tactical combinations - at least for me. Moreover, the computer can be used to check the accuracy and uniqueness of the solution. With positional exercises, different computer programs may favor different moves and completely disagree about the evaluation of a given position. This is, of course, never the case when a clear-cut tactical solution exists. In a way, this problem is similar for humans, making it difficult to find examples with unique positional solutions. Therefore, in the tests offered in this book, when I think that different moves also deserve points, I have mentioned these as well . I suggest that you begin with the introductory chapters o f motifs, but you can, of course, start with the exercises as a warm up. I f you are able to solve them quite quickly, then you should tum to the tests. You cannot expect to solve the puzzles on positional grounds alone. Positional motifs do not exist in a vacuum and con­ crete calculation almost always plays a role. So use your intuition to judge how far you must calculate to get ful l scores. Sometimes it is sufficient to find the first move, at other times you must calculate several moves ahead to ensure that your idea really works. Themes l ike "counterplay" or "opening the position" tend to be more tactical of course, but do not make your decisions on these grounds alone. Always let your intuition be your guide in any given position. You should repeat the tests after some time to train your memory and to recognize the patterns more readily. I hope that after studying this book, you will look at positional matters afresh, e.g. evaluate each exchange of a piece carefully (this problem is extremely important, believe me), look at the plans and ideas of your opponent and add the positionally desirable move to your list of candidates before you start calculating variations. Many thanks to Hanon W. Russell for adding many explanations, Susan Polgar for her foreword, Mark C. Donlan, Helene Romakin, N ikolas Lubbe and Steve Goldberg. Special thanks to Jacob Aagaard for testing the exercises. I wish you plenty of fun with the puzzles and I hope that your overall perfor­ mance improves! Karsten Miiller Hamburg, May 2008

5

Motifs Good and Bad Bishops

The bishop can only move on half the squares of the chessboard and this has many positional impl ications. I f one bishop is exchanged, the other is also weakened, as the enemy pieces can find a safe haven on opposite color squares of the remaining bishop. So the bishop­ pair is an important weapon and you should not give your opponent a strong unopposed bishop. This is especially true when an attack with opposite-col­ ored bishops is possible (see Part B).

Ho/lis,Adrian Swayne (2606) Hovde,Frank (2534) Corr. 1 99 1 (8)

A) Bad Bishop

Trying to restrict and finally dominate minor pieces is an important part of chess strategy. Pawns are usually used to make the bishops "bite on granite." [n Hollis- Hovde, the d3-bishop bites on the f5-h7 pawn chain, while the e3bishop is restricted by the d6- and c5pawns. Conversely, Black's a6-bishop cannot be simi larly restricted. These pawn chains are the active strategy to restrict an enemy bishop. Of course, especially long pawn chains in the cen­ ter can restrict the bishop. One famous example is the c8-bishop in the French Defense after l .e4 e6 2.d4 dS 3.e5. In our first example, White's dark-squared bi shop i s permanently bad, as the doubled c-pawns and the blocked f4pawn form a cage. The light-squared bishop is only on a bad square, but it will get stuck protecting c4 if White does not play actively. So 16.j},xf5!? is White's best bet. B lack is better after 1 6:�a4 .:£\aS 17 . .Q.. f2 .:£\f6 1 8.l"!.fel .:£\g4.

16...gxf5 17.�d5+ �f7 1 8 . � x c6 .il.b7!? This is more in the spirit of an attack with opposite-colored bishops than 18 . . . .Q..x c4. 19.�a4 h5 20.�abl 20 . .:£\xhS? is asking for trouble: 20 . . . �h4 2 1 . .:£\g3 f!. h7 22.'f7 34.f5 E!.aa7 3 5 . A x d 4 +- F t ac n i k i n CBM 7 9 . 3 2 . § x h 5 + �g6 3 3 . §g 5 + �h7 34.Jl.c3 Jl.d1 35 . .§e3 1-0 The next example shows a nice combi­ nation based on an attack with oppo­ site-colored bishops: Taimanov,Mark (2530) Vitolimoh,Aivis (2415) Jurmala (9), 1 978

C) The Bishop-Pair

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Two bishops are usually very strong. Jonathan Rowson describes this in The Seven Deadly Chess Sins (page 1 30) as fol lows: "Although the pair of knights can be very effective, we don't see them as 'a pair' because there is nothing one knight can do that t h e other can ' t i n principle . . . There may b e someth ing good about 'the two knights' in a par­ ticular position, but this is purely acci­ dental, for there is no reason in prin­ ciple why a pair of them should be more than the sum of their parts. On the other hand, one bi shop makes up for the shortcomings of the other, and takes care of its own shortcomings in the pro­ cess. So what happens when you cap­ ture the opponent's bishop is not only that you remove one piece of value, but that you 'weaken' the other bishop too."

24. . . § xe4! 25 . .§ xe4 d5 26.§ xd4 26.cxd5? �xd5 2 7 . E!.bel ( 27. El.e8+? E!.xe8 2 8 . � x d 5 E!.e 2 + 2 9 . 'it> h l Ax b l -+ ) 27 . . .A x e 4 2 8 . E!.x e 4 �xb3 -+ . 26 ... c x d4 27 .§c1 Jl.e4

28.�d1 dxc4 29.§ xc4 Jl.a8!

A single bishop can operate on both wings simultaneously, so it is easy to understand that the bishop-pair are a tactical powerhouse (especially in open positions) and are a strong endgame weapon. Therefore, it is no wonder that many positional operations aim to ob­ tain the bishop-pair:

8

Motifs 32 .cxb5 tzlxe4 33.§. xc8 �xc8 34.�xf4 Ag5 35.�fl tzld2 36.�f2 tzlc4 37.�c2 axb5 � . 3l . . . b)(c4 32.� )(f6+ ...Q. )(f6

Naiditsch,Arkadij (2524) Lutz,Christopher (2643) GER-ch Altenkirchen (9), 08. 1 2.200 1

33 .thd6 �d3 34. � )( b8 Et )( b8 35.Jl)(d3 35.§. xc4 tzlb2 -+ is the tac­ tical justification. 35 ... c)(d3 B lack is winning because of the bishop-pair, combined with the l ight-squared weak­ nesses in White's camp, and the passed pawn on d3 . 36.Etc4 Etbc8 37.Jl.c5 Jlc6 38.�b3 ...Q. b 5 39.Etc3 Jlg5 40.a4

I n this typ ical Hedgehog structure, Black successfully undermines White's overextended center and ulti mate ly wins the bishop-pair. This is decisive in the resulting endgame: 28 e51 The weakening of d5 is not so important, since White can't use it. 29.f5 29.fxe5 tzl x e 5 3 0 .tzld5? ( 3 0 ." � e 2 �c7 �) ••.

30 . . .tzlxd5 3 1 . c xd5 §. x c l 3 2 . � >< c l (32.§.xcl .llg5 33.Ae3tzlxd3 34.�xd3 .llx e3 35. �><e3 .ll x d5 -+ ) 32 . . .tzlxd3 33.§. xd3 .ilg5 34.Jle3 §. xe4 35 ..1l.xg5 h xg5 =i= Ribli in CBM 87. 29 . . . �f4 30.�d5 30 .Ae3 tzlxd3 31.�xd3 t.

40...Jlc61 40 . . ..1l.xa4? 4 l .§.cxd3 allows W h i te s o m e h o p e . 4 1 . h4 Jl )( h4 4 2 . � a 5 Jl )( a4 4 3 . Et d )( d3 Jl.el 44.Eta3 Jlc2 45.Eth3 Eted8 46.Etal Etdl 47.Et)(dl Jl )(dl 48.Ete3 Jlh4 4 9 . � c4 ? 1 Jlf2 5 0 . Etc3 ...Q. e l l 5 1 . � d6 5 l . §. c l A x b4 5 2 . .1l. x b4 Ae2 -+ and Black wins, despite the opposite-colored bishops, because of the many l ight square weaknesses i n White's camp. 51 ... Jl)(c3 52.� )(c8 Jlc2 5 3 . � d6 Jld3 54.g3 Jlb2 55.Jle3? 5 5 . Bb6 was more tenacious, but B lack will ultimately prevail, e.g.

30 ... b51 31 ..1lbl?

55 . . . g6 5 6 . fxg6 fxg6 5 7 . 'it'g2 .ll. c 3 58.Ac5 h 5 59. 'ifi>f3 Ad2 -+ . 55 Jla3 0-1 Naiditsch resigned as . . . a5 follows. •••

The advantage of the bishops is larger than Black's plus after 31.tzl xf4! exf4

As a rule, the side with the bi shops wants to control the position and then

9

The ChessCafe Puzzle Book 2 open it on their own terms. Usually it takes time to win the bishop-pair, so the opponent gets some dynamic compen­ sation. This must be used to create weaknesses and outposts for the knights to use their dynamic potential before the bishops can control the position and restrict the knight's activity: Sturua,Zurab (2595) /zoria,Zviad (2372) Yerevan zt 1 .5 (4 ), I 0.06.2000

l .c4 eS 2 . .£l c3 .£lf6 3 . .£lf3 .£lc6 4.e3 .1l.b4 S.�c2 .1l.xc3!? B lack vol­ untarily cedes the bishop-pair. 6.�xc3 "tte7 7.d3 Here's one game that illus­ trates what can happen if Black does not follow up actively: 7.a3 0-0 8.b4

knights. 8 . .1l.e2 8.cxdS e8 3 7 . § a 2 !? Good prophylaxis. The fol lowing line shows why : 37 . . . .£la7 ( 37 . . . \t>e7 38 . .£lxc8+ § x e S + 3 9 . \t>b6 § b8 4 0 . \t>c7 +- ; 37 . . . \t>d8 3 8 . § d 2 + \t>e8 39 . .£l x c8 § x c8+ 4 0 . \t>b6 t:!c 3 4 l . a 4 t:!c4 4 2 . § b 2 +- ) 3 8 . \t>d6 .£lb5 + 39.\t>xe6 +- ; The rook endgame after 36 . . . .£lxb6?! 37.\t>xb6 is totally winning

because of White's activity, which is extremely important in rook endings in genera l : 3 7 . . . \t>d7 3 8 . § d 2 + \t> c 8 39.\t>a7 +- . 37.gd2 Now White's su­ perior acti v i t y d e c i d e s the i s s u e : 3 7. . . �f7 38.gd7+ �g6 39-�d6 4)b5+ 40 . � x e6 4) x a 3 4 t . �e7 4)c2 4 2 . 4) d 5 �f5 43 .e6 4)d4 44.�f7 4)f3 44 ... .£lxe6 45 ..£le7+ \t>e5 46.t:!d5 + +- ( P sakh i s ) . 45.4)e7+1 ? �e4 46.4)g6 4)g5+1 47.�e7 �f5 48.4)f4 h4 48 . . . \t>g4 49.§d8 § xd8

Now White mobilizes his pawns to re­ strict B l ack to the maximum. 20.a3 .Q.a5 21.b4 .Q.c7 22.c5 B lack's army makes a very poor impression. The w h i te pawns d o m i n ate the board . 22 ... ges 23. �d3 g6 24.ge2 4)f5 25 . .Q.c3 h5 26.b5 "Keene calls this 'Kasparov's strategy of strangulation' and points out that 26.b5 doesn't just attack the knight but establishes 'a gi­ ant, crawling mass of wh ite pawns, rather resembling a colossal army of soldier ants on the move.'" (Friedel in CBM 50) 26 ... 4)ce7 27.Jld2 �g7 28.a4 gas 29.a5 a6 30.b6

50.\t>xd8 .£lxe6+ 5 1 ..£lxe6 b6 52.\t>c7 a5 53.b5 +- (Psakhis). 49.gd5+ �g4

50.h3+ 4) xh3 51.4) xh3 1-0 The fol lowing game is an ideal example of u s i n g pawns to restrict t h e 13

The ChessC�fe Puzzle Book 2 Topalov, Veselin (2745) Leko,Peter (2722) Candidates final Dortmund (2), 1 9.07 .2002

30 ...Jl.b8?? Now B lack's bishop and a8-rook are out of the game. 30 . . . Jld8 was absolutely necessary, when the e7knight could go to c6 and the bishop to f6 . 3 l .Ac2 .£) c 6 3 2 . Jl.a4 E!e7 3 3 . Ac3 .£) e 5 ? 1 34 . d x e 5 � x a4 35 . .£)d4 .£) xd4 36.� xd4 As more pieces are exchanged, the weakness of the dominated pieces is felt to a greater degree. 36 ... �d7 36 . . . �xd4 37.�xd4

43.E!h6 E!f7 44.�e6 E!f8 45.�e4?1 45 .'\;i'fS!? '\;i'e7 (45 . . . �f7 46.�e6 �f8 47.�h4!5:5 ) 46.�d3 �b7+ 47.f3! 4:\b2 48.�c2 �g7 49.�hl �g8 (49 .. .f5!? is probably B lack's best bet 50.�bl 4:\a4 51.�xa4 �g8 52.g4 fxg4 53.f4! White

�d7 38.�b2 �d8 39.c6 bxc6 40.b7

must use B lack's g-pawn as a shield 53 . . . �b7+ 54.'it>gl �e4 55 .�b3 and White is still fighting.) 50.g4 f5 5 1 . '\;i'xf5

� a7 4 l .� xc6 +- ; 36 . . . �c6 37.�d2 �d7 38.�g5 and White's attack on the

kingside w i l l w i n the game easi ly. 37.Jl.d2 E!e8 38..1lg5 E!c8 39.Jl.f6+ 'it/h7 40.c61? The decisive break­ through. 40... bxc6 40 . . . � xc6 4 1 .�ec2

4:\c4 (5 l . . . � e8 5 2 . � c l 5:5 ) 52.� xh7+ �xh7 53.�f6;�; (Rogozenko in CBM

90) is one line that shows White's re­ sources. 45 . . . �d7 46. �f3 \t'g7 47.E!h5

� x c 2 4 2 . � x c 2 �e8 4 3 . � c 5 'it>h6 44. �c8 +- . 4 1 . �c5 \t'h6 42.E!b2

�b7 43.E!b41? 1-0 The Deep B lue team resigned as B lack's army is para­ l yzed, e . g . 4 3 . . . 'it> h 7 4 4 . g4 h x g4 4 5 . � xg4 �g8 46:�e3 '\;i'c8 47.�h3 �e8

48.�g5

�f8

49 . h 5

�h6

50.�xc6 +- .

J ust one dominated piece can spell trouble. In the next example, White has only one pawn for the knight, but he can stil l of­ fer extremely tough resistance.

47 ... .£jb2? The kn ight is not really much better on b2; improving the rook 14

Motifs 2 2 . 4Jd l 'it'g8! and B lack was OK in J . P i achetka- V. B agirov, Berl in 1 979. 1 7 . . . Jl,.h6 1 8 .f41 B lack 's rook is dominated. 18 b4 1 8 . . . .!"!b8!? may be worthwhile to avoid the advance . . . b4, w h i c h weakens the l ight squares. 19 ..§d6 .§b819 ... bxc3? 20 . .!"!xb6 cxb2 2 l .Axc4 Jlc6 22 . .!"!xb2 and White wins, despite B lack's extra rook. 20 . .£jd1 Jl.xg5 21.fxg5 .£ld5? The idea of sac­ rificing the knight on e7 does not feel right, as White's whole army gets very active, but it is already difficult to give Black good advice. 2 l . . .Ad5? loses outright: 2 2 . 4Je3 ..lle 6 23 . ..1lg2 ..lld7 24 . ..1lc6 +- . 22.Jl,.xc4 .£l x e7 23.fxe7 \tlxe7 24 .§f6

was necessary: 47 . . J''!.d 8! 48.'�e4 h6 and it is hard to believe that White can hold this. 48..§d5 �e6 49 .§d41 .§cS 49 . . . 4Jc4? 50.�g4+ +- . 50 .§e4 �c6 5Vifj'h2 \tlf8?1 Now it is definitely drawn. 51. . .h5 was the last chance to play for a win. 52.�f41 \tlf7 53.�f5 .§gS 54. �xh7+ .§g7 55. �h5+ \tlf8 56.�f5? Topalov even wants to win! But t h i s is a s k i n g for too m u c h : 56.�h8;!; was warranted. 56 ... .£Jc4 57 . .§e2 5 7 .!'!.e6 !'!.h7 + 5 8 . � x h 7 � x e6 -+ ( Rogoze n k o ) . 57 . . . .§g5 5 8 . �h7 .£le5 59. �h6+ \tlg8 60. � x g 5 + f x g 5 6 l . .§ x e5 �f6 62 . .§e2 �f3 63 . .§d2 \tlf7 64.a4 �b3 65 ..§d6 � x a4 66 .§b6 �a2 0-1 •

••.

•

•

•

In the next example, Polugaevsky's con­ cept put Black's whole setup under a cloud: Polugaevsky,Lev (2620) Torre,Eugenio (2550) Moscow, 1 98 1

White continues his strategy of restrict­ ing Black's pieces. 24 ... .§hf8 25 . .£Je3 Jl.e4 26 .§xa6 .§bdS 27 .§f6 .§d6 28 .§f4 .§d4 29.h5 Jl.d3 30 . .£ld5+ \tld6 3 l . .§ x d4 c x d4 32 .Q.b3?1 Polugaevsky went on to win, although he later showed that 3 2 .Axd3 was c a l l ed for: 3 2 . . . 'it' x d 5 3 3 . h 6 .!"!g8 •

•

•

•

( 3 3 . . . .!"!h8 34 .�f2 �d6 3 5 . �f3 �e7 36. �g4 f6 37 . �h 5 +- ) 3 4 . h 7 .!"!h8 35 .'it'd2 'it'd6 36.�c2 �e7 37.�b3 le3 .£lbd7 1 3.E!fdl 'ifJc7 14 . .£la4 was more to the point, as White must prevent a dark square b i n d . 1 2 . . . j}, x f3 1 3 . A x f3 Jl.c5 14.b3 4)bd7 1 5.Jl.b2 j},d4 16. .§ad1 "l:fc7

26 ... "l:!c5?! This gives White unneces­ sary counterplay. 26 . . . b6 27.f4 .£ld7 28.fxe5 .tlxe5 29 . .£lf4 .£lc5 + was more precise. 27.f4 exf4 28.gxf4? A tacti­ cal oversight. 28 . .£lxf4 makes it quite difficult for B lack. One possibility is 28 ... .£lg5 29.�d3 'ifJe7 30. 'ifJc3 a4 31.e5 .tld7 3 2 .h4 Oh7 3 3 . 0d3 f6 34.exf6 .tlh x f6 with an i n itiative for B lack.

28... 4) xe4! 29."1:fd3 29 . ..1lxe4? 'if1f2+ 30 . ..1lg2 'ifJxe2 -+ . 29 . . . 4)d6 30.�h1 g6 and B lack went on to win. In the first two examples, the outpost squares were already there. Now we will have to create them:

17.4)e2? This allows another favorable exchange. B lack's dream scenario of knight vs. light-squared bishop is get­ ting closer. 17.b4? is also wrong as Black can force the pawn to advance:

Tiviakov,Sergei (2625) Van den Doel,Erik (2583) NED-ch Leeuwarden ( 3 }, 22.06.2002

17 . . . a5 18.a3 axb4 19.axb4 iil'b6 20.b5 .£lc5 +; 17 . .Q.c l !? .£lc5 18 . .£le2 .£le6 1 9.�h2 E!ad8 20 . ..1lg2 ..llc 5 2l .f4 is one

po s s i b l e

l i n e that g i v e s

White begins with a very strong move that restricts B lack's I ight-squared bishop and creates outpost squares on

W h ite 18

Motifs e6 and g6, both of which can be reached from f4.

bxa4? This clearly goes too far. 30 . . . c4 3 l ..ilfl E!e8 3 2 .axb5 .ilxb5 3 3 . E! a l E! b8 (Postny) and B lack can still fight

tenaciously. 3 1 .Bc4 Wh ite converted his advantage: 3l. .. �f7 32.Jl,xe6+ � x e6 33 . .§.d8 Jl.d6 34. .§.g8 �f7 35 . .§.b8 �e6 36.�d3 �e5? This makes it very easy. 37 . .§.g8 gS 38 . .§.h8 Jl. b 5 + 3 9 . �c3 �e6 40. .§. xh6 Jle5+ 41.�c2 c4 42. .§.h8 1 -0 Creating an outpost square with the fol­ lowing positional pawn sacrifice i s quite typical in Benoni-l ike structures:

18.f5! However, White is not that much better here, as B lack's bishop-pair is qu ite strong, espec i a l ly the dark­ squared one. 18 ... Jl,d6 19.g3 .§.e8 20. .£)e2 Jl.d7 21 . .£)f4 cS

Tyomkin,Dimitri (2495) Cao Sang (2501 ) EUCup G 6 Budapest (3.5), 1 3 . 1 0. 1 999

2 2 .c4! T h i s prevents B l a c k ' s counterplay and continues the strategy of restricting B lack ' s l i ght-squared b i shop. 22 . . . a6 23.�c2!? A n i ce endgame move that prepares to activate the k i n g . 2 3 . . . Jl,c6 24 . .£)e6 .§.e7 25 ..§.d2 .§.ae8 26. .§.de2 .§. xe6?! This positional exchange sacrifice is very dubious. 26 . . . .1ld7 27.fl .£\h4 2 4 .i.txh4 � x h 4 , Informant 46/802; 1 9 . 0-0 f3 20.Jle3 �h4 2 l .'l;irf2 �e7 22.§.ac l .£\f4 oo. 19 ... jld7 20.0-0-0

Jle5 2 1 .�bl �f6 22.jle2 .£lg3 23.Jl.xg3?1 23.!!hel .ilxc3 24.�xc3 � x c 3 2 5 . b x c 3 .£\ x e 4 2 6 . .ild4 .ll. f5 27.'>t>b2 §. ac8 i s s l ightly better for

White. (Kasparov). 23 . . . fxg3 24.Jlf3 �ac8 25 .£le2 �g6 25 ...§. c5!? 26.§.cl §. fc8 27 . .ilg4 .ilxg4 28.hxg4 �g6 also gives Black very good compensation. 2 6 . � c l � x c l + 27 . � x c l �c8 28. �e3?1 �f6 29. �d2 �c5 30 . .£lcH

37.g4 Now White's whole army attacks in earnest. 37 ... .£l x c5 38.d xc5 f6 39 . .£l f3 f x e 5 40 . .£1 x e 5 .£1 x e 5 41.� xe5 �f7 42.�e3 �c8 42 . . . d4 4 3 . !! d 3 +- . 4 3 . �d4 Jld7 44.g5 White's attack plays itself. 44 ... hxg5 45.fxg5 �f8 46.h6 �g8 47.c6 � x c6 48. � x c6 Jl x c6 49 . � x e6 Jlb7 50.g6 �e7 51.�e5 1-0

•

Of course, bishops can also use out­ posts: Gheorghiu,Fiorin (2485) Kasparov,Garry (2760) Thessaloniki ol, 1 988

This allows Black's whole army to join the attack. 30.Rc I to reduce the attack­ ing potential was called for, e.g. 30 . . . b6 3 l . !! xc5 bxc5 32 . .£:\cl .ilxh3 33 . .£\d3 Ad7 34 . .£:\xeS �xeS and B lack is for choice. 30 ... Af4 3 l . �b4 3 l .�d3 Jlb5 3 2 . � a 3 �d4 33 . .£\b3 �d3+ 34 .'>t>a l !! c7 3 5 .�b4 �c2 36.�el �f2 -+ . 3l ... Jlb5 32 . .£lb3 Jl.d3+ 33-�al �c2 34.�bl 34.�d4 .ile5 3 5 . � x d3 §. x b 2 -+ ( K asparov ) .

15 e41? A typical pawn sacrifice to create a strong outpost on e5 . Kasparov bides h i s time before occupying it: 1 6 . .£l x h 5 .£l x h 5 1 7. f x e4 f41 •..

34 ... Ae5 35. .£lcl Axb2+ 36.�xb2 �xb2+ 0-1

21

The ChessCafe Puzzle Book 2 Exercises (E07) Berkes,Ferenc (26 1 7) ­ Erdos, Viktor (2480) 55th HUN-ch Kazincbarcika (8), 1 7. 05. 2005

(E09) Timofeev,Artyom (2622) Volokitin,Andrei (2679) 3 5th Saraj evo Bosnia (2), 20.05. 2005

How to finish B l ack's development? (One point) Solutions begin on page 1 55 .

Where will the white knight ultimately land? (One point)

(E08) Jackelen, Thomas (2392) Kesse/er,Heiko Bundesliga Germany (3.7), 24. 1 1 .200 1

(E I 0) Anand, Viswanathan (2786) Vallejo Pons,Francisco (2686) Linares ( 1 2), 08.03 .2005

w

B

W h at i s the proper way to deploy B lack's blockading forces? (One point)

How to win the fight for the important central files? (One point)

22

Motifs ( E l l ) Gurevich,Mikhail (2620) ­ Balashov, Yuri (2505) Deutschland, 1994

w

White to move! (Two points) Undermining

If the base of a pawn chain can be cap­ tured or forced to move, then it can weaken the whole chain : Keene,Raymond ­ Quinteros,Miguel Angel Orense, 1 975

White's pawn shield is in ruins. Now B lack uses the open l ines for a decisive attack: 24.�abl �h8 25.b4 �ag8 26.�fl b6 27.Jl.c3 .£)g4 28.Jl.xg7 � xg7 29.�c3 .£)f6 30.�gl �hg8 31.Jl.fl .£)g4 32.�b2 .£)f2+ 0-1 Outposts can also be undermined:

B lack wants to exploit the fact that White 's h-pawn is no longer on h 2 : 19. . .h5 20 . .£)e2? h was necessary to deter the destruction of White's pawn shield with 20.h4!. 20... h41 21.gxh4 �h6 22 . .£) fg3 � x h4 2 3 . \tl h l �f71?

Nikolic,Predrag (2640) Spraggett,Kevin (2560) Elista ol (8), 06. 1 0. 1 998

In the next example, B lack 's strong knight holds the position together, but 23

The ChessC�fe Puzzle Book 2 28.bxa6!? {Jxa6 29.{Jb4 {Jc5 30.{Jd5! 'il1a7 3 l .{Jxb6 �xb6 32.'il1xc5 'il1b2 is

also much better for White, but B lack h a s s o m e a n n o y i n g c o u n te r p l ay. 28 ... a x b 5 28 . . . a5 2 9 . {J x a 5 �a7 30. {Jc4 {Jxa4 3 l . .§ a l +- (Avrukh in CBM 66 extra). 29.a5JI 4)a4 29 ... 'il1b7 30.{Jb4 Jl.e4 3 l .a6 �a8 32.Axe4 {Jxe4 33.�xb6 ± . 30.a6 4)c5 31.a7 �h8

32."�e5 1-0 Black resigned because if he avoids the exchange of queens, White's queen will land on b8.

not for long: 28.a4!? The normal

Exercises

(E l 2) Iordachescu,Jiiorel (2609) ­ Hillarp Persson, Tiger (2533) 1 3th Sigeman & Co Copenhagen/ Malmo ( I ), 1 5 .04.2005

(E l 3) Markowski, Tomasz (2548) ­ Hickl,Joerg (2600) Bundesliga Germany (3.2), 24. 1 1 .200 1

w

w

It seems that White's initiative has come to a halt, but this is deceptive. How did he continue? (Two points)

How to act on the kings ide? (One point) Solutions begin on page 156.

24

Motifs ( E l 4) Shabalov,Alexander (2615) ­ Baburin,Aiexander (2600) Mermaid Beach (3 ) 28.0 1 . 1 998

( E 1 6) Nimzovitch,Aaron Capablanca,Jose Raul New York (3), 1 927

,

w

B

How to convert the advantage ofthe two bishops? (Two points)

B lack to move! (Two points)

(E 1 5) Gurevich,Mikhail (2634) ­ Espig,Lutz (2425) Bundesliga Germany ( 5 . 5 ), 1 4. 1 2.2002

w

How did Gurevich continue his under­ mining operation? (One point)

25

The ChessCafe Puzzle Book 2 Opening the Position

The most important way to exploit a dynamic advantage is to open the posi­ tion, either by exchanging pawns, open­ ing files or using pawn levers. Finding the right moment and means is often crucial, as opening the position is not an end in itself and you must ascertain that you profit from it rather than your opponent.

k i ng fro m fi n d i ng s h e l te r on the kingside.

Movsesian,Sergei (2624) Tibensky,Robert (2448) SVK-ch Kaskady (6), 02.07.2002

2 2 . �e4! �g8 23.d x c S .Q. x c S 24.�g4+ �f7 2 4 . . . 'it'h8 2 5 .�h6 f5 26.l::(g5 l::(t7 27.hl .ll f7 2 7 . �g4 �f6 2 8 A � f3 A h S (28 . . . f!. g8!?) 29.�g5 �xgS 30.gl � h S -+ ) 3 1 . . . .ilf6 -+ ) 25 . . . 4Jxd3 26.�xf5 �xfS 27.�e8 c6!? (27 . . . ..Q..e 5+?! 28.'\t>hl �xf2 29.�d1 4Jb2 30.�bl 4Jd3 3 1 . � d l =) 28.4Jf3 4Jxc5

and Black has more than enough com-

Exercises (E50) Anand, Viswanathan (2795) Sadler,Matthew (2660) Tilburg, 1 998

(E48) Hracek,Zbynek (26 1 2) ­ Kallio,Heikki (245 1 ) Istanbul ol ( 1 1 .2), 08 . 1 1 .2000

w

8

White to move! (Two points)

To sacrifice the exchange or not to sacrifice the exchange? (One point) Solutions begin on page 1 64. (E49) Karpov,Anatoly (2725) Gelfand,Boris (2690) Linares (6), 1 993

(E51) Korchnoi, Viktor (2635) Seirawan, Yasser (2605) Lugano op, 1 986

w

w

White to move ! (Two points)

White has an edge here, but how did Karpov force the issue? ( Five points) 51

The ChessCafe Puzzle Book 2 Simplification

U nd ersta n d i n g w h e n to e x c h a nge pieces (and which pieces to exchange) is very important. Do not underestimate this! Some guidelines are: I ) What remains on the board is more important than what is exchanged. 2) Do not exchange pieces if you have more space, but instead try to further restrict the enemy pieces. 3) Exchange pieces when ahead ma­ terial and exchange pawns when be­ hind in material. 4) Exchanging queens usually dra­ matically changes the nature of the position, as endgame themes begin to dominate, and these are quite dif­ ferent from the usual middlegames.

teet c7 are not satisfactory e ither: 2 l . . . .§ c8? 2 2 .Jlh3 4Jg4 2 3 . 4Jh4 g6 24.E!c3 +- , the threat f2-f3 cannot be satisfactori ly parried . ; One sample line after 2 l . . .c6 runs 2 2 . 4Je5 c5 23 . .§ b2 cxd4 24.exd4 .§d6 25.E!cbl 4Jg4 26.f4 .§ ee6 27.Jlf3 f5 28 . .§cl .§e7 29.E!hc2 .§ de6 30 . .§ c7 4Jf6 3 l .'it'g2 ± . 22.Jl,fl

Jl,a8 23.a4

Let's start with an example of rule #4: Vallejo Pons,Francisco (2648) Tkachiev, Vladislav (2625) Biel GM (2), 23 .07.2002

23 ... f6? The weakening of the l ight squares on the kingside is fatal . Just marking time with 23 . . . Jlb7 was called for, e.g. 24.Jlb5 'it'f8 25 .Axe8 .§ dxe8 26 . .§ xc7 .§ xc7 27 . .§ xc7 E!e7 (Gershon) 28 . .§cl ± . 24.4)h41 B lack is lost and so decided to sacrifice the exchange, but his knight will find no strong outpost. 24 4)d6 25.4)g6 Eled7 26.Jl,h3 �f7 27.Jl,xd7 Etxd7 28.4)f4 4)c4 29.e41 This strong undermining de­ cides, as it forces 29 . . . c6 after which B lack's bishop needs too much time to participate in the game. 30.4) x h5 b5 3 l .e5 fxe5 3 2 . d x e5 d4 33.4)f4 �e7? Al lowing a strong blockading knight on d3 makes it easy for White. 33 . . . 4Jxe5 j ust had to be tried, but a few precise moves by White will show that B l ack's counterplay is i nsufficient: 34. .§c5 .§e7 35.E!dl +- . 34.4)d3 Eld5 ..•

20. �a31 Black's strong queen defends c7 and influences both flanks, while White's queen plays no influential role. But White's active rooks will count for much in the endgame. 20 ... � x a3? 20 ... c6 was called for. 21.bxa3 4)e8 Relatively best. The other ways to pro52

Motifs 35.f4 Jl.b7 36.Cif/f2 J}.c8 37.axb5 ex b5 38.Etxc41? bxc4 39.Et xc4 Jl.f5 39 . . . .Q.a6 40.E!c5 +- . 40.Cif/e2 Eld7 4 1 . Cif/ d 2 Cif/e6 4 2 . Etc6+ Cif/ d 5 43.Etc5+ cifle4 44.e6 1-0

ki ngside, w h i l e White's play o n the queenside is unstoppable. 23 ... h4 24.Cif/e2 hxg3 25.hxg3 Etg6 26.Eta3 Eth6 27.Cif/f3 Elhl 28.E{xa7 1-0 Now, two examples of rule #2:

One aim of an exchange is to create an advantageous imbalance like a good bishop vs. bad knight or vice versa:

Dautov,Rustem (2631) ­ Romanishin,O/eg (2559) Julian Borowski-A 3rd Essen (7),

09.05.200 1

Mikha/chishin,Adrian Chernin,A/exander Cienfuegos, 1 98 1

White should avoid simplifications be­ cause of his space advantage: 14.Jl.h31 A typical move to preserve the bishop­ pair. 1 4 . . . Jl.h7?1 1 5 . .£, d 2 .£,e4?1 B lack wants to exchange pieces at any price, but White's center becomes too strong. 1 5 . . . d5!? was called for, to get a foothold on the light squares: 1 6.cxd5 exd5 1 7.AbU (Dautov in CBM 83). t6. .£, xe4 Jl. xe4 17.f3 J1.h7 18.e4 It is clear that White's bishop-pair and strong center give him an undisputable advantage . 18 . . . a4 1 9.�b2 �e7 20.b4 a3?1 2 1.�b3 Elfd8 22.E{adl .£,f6? 22 . . . c5 2 3 . E! d3 ± . 23.b5 +­ White first won the a3-pawn and then later the game.

The key to the position is Black's bad bishop on e7 and White's initiative on the l ight square s : 16.Jlxf61 ± This weakens B lack's kingside pawn struc­ ture and purifies the favorable imbal­ ance, which is often good. This is also a good example for rule # I : what re­ mains on the board is more important than what is exchanged. White's dark­ squared bishop might look strong, but B l ack's f6-knight is also useful. So White correctly decided to exchange on f6. 16...gxf6 17.Eldl Elb8 18.Etd3 Etb4?1 This plays into White's hands, as his knight wants to go to c4 anyway. Yet it is difficult to suggest anything better for B lack. 19 . .£,d2 Elg8 20.g3 Et x c4 2 1 . .£, x c4 Etg4 2 2 .f4 h 5 23.Cif/d2 Wh ite improves h i s worst placed piece. The king will defend the

The famous R us s i an trainer Mark Dvoretsky has collected many examples of the concept ofthe superfluous knight. Here is a recent one:

53

The ChessC�fe Puzzle Book 2 Go/od, Vitali (2538) Tomescu, Vlad (24 1 2) 4th Estensi op, Lido (5), 1 1 .06.2003

Often the attacker does not want to ex­ change pieces, because he needs them to participate in the attack :

-

Miiller,Karsten - Dautov,Ru.'item German Bundesliga, 2006

15.�f2! White correctly avoids the exchange of knights, as B lack's d7 knight has problems fi nding a good square. 15 ... c6 16.b3 cxd5 17.exd5 This prepares the strong blockading e4s q u are for t h e k n i g h t s . 1 7 . . . g6

W h i te wants to keep both roo k s : 26.§fel!? Ag6 Black wants to de­ crease White's firepower, but every ex­ change comes at a price: the loss of time. 27.Axg6 � xg6 28.�d4 �e7 29.§a1 �f5 30.�a2

1 7 . . . e8 39 . .§ h7 .§ xc7 40 . .§ xh6+- .

29.§.b1 29.f3? tzlxg2 30.'it>xg2 .§ xf3 -+ ; 29 . .§ c 1 .ilxg2 + ; 29 . .§e4!? is probably

3S. §. x f7

'it'hS

3 9 . 'it' c 2

§.d7

39 . . . .Q.d 6 4 0 . .§ f6 +- . 40.'it'b3 a5

4 1 .f3 §.d4 4 l . . . .§ c 7 4 2 . 'it> a 4 � a7 43.'it>h5 a4 44.Jle6 +- . 42.§. xe7 a4+ 43.'ifi'xa4 §.xc4 44.'ifi'b5 §.c2 45.b3 'it'gS 46.§.e5 §.xa2 47.§. xc5 §.aS 4S. 'ifjl x b4 §.fS 49. §.f5 §.bS+ 50.'it'c3 §.cS+ 51 .'it'b2 §.bS 52.f4 1-0 A l l five points, if you calculated until 38.Rxf7 and saw that White wins. ( E 0 2 ) B i s h op- P a i r, We a k n e s s e s : 23 ... �cSI + 24.4)db5 24.�b3 fxe4

the most tenacious, but Black should still be better. 29 ... .Q. xc3 30.�xc3 Jlxg2 31 ..Q.g3 .Q.e4 32.§.xb6 §.xc4 3 3 . �a3 4)f3+ 34.'it'f1 4)d2+ 35.'it'g1 §.ccS 36.§.b4 h5 37.h4 E!f3 3S. �b2 §.c2 39.§.bS+ 'it'h7 40.�b5 §.c l + 4 1 .'it'h2 E!f5 0-1 Two points for 23 ... �c8! and two more if you saw 25 . . . . exd3!!. (EOJ) Bishop-Pair: 19 .Q.h61 20.fxe6 fxe6 21.§.xf6 §.cfS 22.§. xfS .Q.xfSI Black has to exchange one pair of rooks to neutralize White's activity. But one rook should remain, so that Black can create threats in the long run. 23.§.f2 .Q.h6 24 . .Q.c4 Jle3 25.§.e2 .Q.g1 26.g3 This reduces White's winning potential. One sample l ine after 26.h3? runs 26 . . . Jle8 27 . .:£\d l Jlh'i 28 . .§d2 •••

25 . .§dd 1 ( 2 5 . tzlxe4? ..ll x e4 26 . .§ xe4

.ilh2 29.c3 .ll f4 30 . .§ f2 .llg3 3 1 ..§ d2

tixc4-+) 25 . . . {)h4 26.4:'lxe4 d'i 27.cxd5

A e l 3 2 . .§ c 2 .ll x d l 3 3 . � c 1 .llh 5

.il x d 5 2 8 . �g 3 .§ a 2 2 9 . b 5 � aS + .

34 . .§ xe1 .§ xg2 -+ . 26 ... hxg3 27.hxg3

24...fxe4 25.4)d6 exd31! 25 . . ..llxd6?

§.xg3 + The rest is quite instructive. 2S.a3 .Q.es 29.'it'a2 .Q.h5 30.§.e1 .Q.d4 3 1 . §.h1 E!g5 32.'it'b3 Ae5 33 . .Q.d3 Ag6 34.§.h4 §.g3 35.a4 Af6 36.§.h1 §.g4 37.§.e1 .Q.e5

26 . .§ xd6 �xc4 ( 26 . . . e3 27.fxe3 �xc4 28 . .§ x d 7 '1= ) 27 . .§ x d7 =i= . 26.4) x cS §.a x eS 27.�d2 2 7 ." � b 3 {) f4 + . 27 ... .Q.xb4 2S.�xd3 4)h4

1 53

The ChessCafe Puzzle Book 2 34.h5 d3+ 35.� xd3 E{d4 35 . . . 1'1 xg4 3 6 . � x d 6 + � x d 6 3 7 . 1'1 x d 6 + 't;c7 38.1'1d5 1'1 xg5 39.1'1dxe5 +- . 36.�f5

Eld2+ 37.Etexd2 cxd2+ 38.'it' xd2 'it'c7 39 . .1l.f3 Ab4+ 40.'it'e2 e4 41.Axe4 1-0 Two points for 28.c4!!. (EOS) Domination: 18.g5J ± Dominat­ ing Black's kingside. 18... Ag7 19.c3 'it'b8 20.�c2 E{g8 2 1 .'it'b1 Ah8 22.c4 �a5 23.a3 E!g7 24.'it'a2 �c5 2 5 .b4 � x d3 2 6 . b x a 5 � x f2 27.cxd5 cxd5 28.E{c1 e6 1-0

38.�d1 E!f4 39.�c3 Elf3 40.�b1 Jl.g3 41.E{g1 Jl,xe4 42.�d2 Jl,d5+ 43. 'it'a3 E{f2 44.�e4 Jl,h2 45.Etg6 Axe4 46.j}, xe4 d5 47.Ad3 Ae5 4S.Etgs 'it'd7 49.b4 Af6 50.E!g1 Elh2 51 .'it'b3 'it'd6 52.Eld1 'it'e7 53.c4 Elb2+ 54.'it'a3 dxc4 55.Axc4 E{c2 56.Ab3 Jl,b2+ 57.'it'a2 Elf2 58.Jl.,c4 a5 59.bxa5 Jl,c3+ 60.'it'b3 j}_ x a 5 6 t .Ab5 b6 62. 'it'c4 'it'f6 63.'it'd4 E!f4+ 64. 'it'e3 'it'e5 65.Elh1 Ete4+ 6 6 . 'it'd 3 E!g4 67 .E{h5+ 'it'd6 6 8 . E{ h 8 'it'e5 6 9 . El h 5 + 'it'f4 7 0 . E! h 3 Elg8 7 1 . El h4+ 'it'e5 7 2 . E{ h 5 + 'it'd6 73.E!h4 Elg3+ 74. 'it'e4 Ad2 75.Ad3 Ag5 76.E{h5 'it'c5 0-1 Two points for 1 9 . . . Ah6! and the third i f you calculated until 22 . . .Axf8!.

(E06) Domination: 18.f3J Restricting the aS-bishop and the f6-knight. 18...e6 19.Af2 E!eS?J o 1 9 . . . Ab7 20.4Jb4 ;�; 20.�b4 Provokes holes on Black's q u e e n s i de 20 a5 2 1 . � a 6 E{c8 2 2 . � x d6 � x d6 23. E! x d6 � d 5 •••

(E04) Attack with Opposite-Colored B i sh o p s , B l oc k a d e , Prop h y l ax i s : 28.c411 +- 28:�xh7? �c3!! 29.1'1xe5+

24.E{d1?J 24.1'1el JleS 2 5 .1'1d7 Ac6 2 6 . 1'1 a7 4Jc3 2 7 . f4 Jlf6 28 . .Q.x b6 ± .

3 2 . "i;t' a 5 +

'g8 30.�h4 �c5 is not completely clear, despite White's dangerous attack. 29 ... Eld6 30.EleS Elad8 31 .Elae1 'lt!c7 32 .£)e4 Eld1 32 . . . .£lxh7 33 . .£lg5 'it>g8 3 4 . � x h 7 + 'itff8 3 5 . f5 .§ d l 3 6 . \'±i' h 8 + 'tle7 37 . .§ x e 6 + fxe6 3 8 . � x g7 + +- . 33 . .£l x f6 E! x e 1 + 33 . . .�xe5 34 ..ilf5 # ; .).) . . . gxf6 34.Jlg6+ �g7 3 5 . � h 7 + 'tlf8 36 . .§ x e6 +- . 34 . E! x e 1 g x f6 3 S .JlfS+ �g8 36.'1f1h7+ �f8 37.Jl x e6 'lt! x f4 38.'1t!h8+ �e7 39.Jl xf7+ � x f7 40.'It!h7+ �f8 41 .'1f1e7+ 1-0 •

(E60) Simpli fication: 16.Jlh31 Sakaev directly goes for an attack with oppo­ s i te-col ored b i s h o p s . 1 6 . . . E!c7 17.Jlxd7 E{ xd7 18. .£)h4 f6 19. .£lfS jla8 20. .£)e3 .£lb7 21.f4 'lt!b8 22.fS aS 23.Elf2 .£)d8 24. 'lt!c2 �f7 2S.g4 �e7 2 6 . h4 h6 2 7 . E! af1 .£l f7 28.Jlc1 Elh8 29 .£) d 1 Eldd8 30 .£)c3 Elh7 31.Elf3 Eldh8 32.�f2 Evacuating the king from the danger z o n e . 32 . . . '1t!d8 3 3 . � e 1 Jlb7 34.'1t!g2 �d7 3S.Elg3 �c7 36.jld2 �b8 37.'1t!f3 �a7 38.E{fg1 'lt!f8 39.�d1 'lt!e7 40.�c2 'lt!f8 41.�b3 'lt!e7 42.Jle3 'lt!f8 43.gS

(E61) Simplification: 23...'1f1e81 B lack easily stops White's attack, whi le his own play on the queenside will decide the day. 23 . . . Gxh6? 2 4 . Gxe6 �e8 2 5 . G x f8 �xf8 26 . .§e2 i s better for B lack, but much more compl icated. 24.'1f1 xe8 E! f x e8 2 S .Af4 A x b 2 26.E!b1 Axa3 27. .£)xe6 Ad6 28.g4 .£l d4 2 9 . A x d6 .£l f3 + 30.�g2 .£) xe1+ 31.El xe1 E!a6 32.f4 El xd6 33.f5 a3 34.Ela1 EtaS 3S.�f3 a2 36. .£)c7 Ela3+ 37.�f4 Elb6 0-1

•

•

(E62) Weaknesses: 23.�h 11 White's attack is irresistible: 23 ...AhS 24.E!f2 a S 2 S . E!g 1 �h8 2 6 . E! x g7 1 - 0 2 6. . . 'it>xg7 2 7. .§g2+ Jlg6 28.fxg6 �xb4 29.gxh7+ 'it>h8 (29 . . .'tlh6 30.�e3+ �f4 3 l .�xf4 + �h5 32 .�g5 # ; 29 . . . 'tlf7 30.�xf6+ \t>e8 3 1 .�e6 # ) 30:-Gih f6+ .§ xf6 3 l ..f.txf6 # .

After improv ing h i s position to the maximum, Sakaev fi nally opens the kingside. 43 ... h xgS 44.h xgS Elh2 4S.g6 White's pawn restrict B lack's

(E63) Weaknesses: 1 2. .£)h4! ± .£)b6 1 3 . .£l f5 Ele8 1 3 . . . �d7 1 4 . e 4 d4 1 5 .Gxe7+ �xe7 1 6.Gb5 Ge8 17.b4 ± . 14. .£lb5 'lt!d7 1 4 . . . 4:Jh5 1 5 .Jld6 .llf8 16.e4 .£lf6 1 7.Axf8 .§ xf8 18 . .£lbd6 ± . 1 S . .£lbd6 Ax d6 16 . .£) x d6 E!e6?! 1 6 . . . .§ ed8 17 . .§ c l ..\lc6 1 8. e4 dxe4

1 68

Solutions 33 . .1l.e7? 33.g5 't'jxb3 34 .ite7 El.e8 3 5 . Jlf6 w a s cal l ed for. 33 . . . E!e8 34 . .1l.f6 .1l. x f6 3 5 . � x f6 � x b3?1 Kick! won later. But 35 . . . Jlxg4 + was much stronger. One point for 24 . . . .£\a7!.

19.1"! xc5 ± . 17 ..1l.h3 .llc6 18.�cl c4 1 9 . .1l.e5 E!f8 20.�f4 .£) h 5 21 ..1l. xe6 fxe6 22.�d4 .£)f6 23.b3 .il.a8 24.f3 �c6 25.E!ac1 .£)fd7 2 6 . b x c4 d x c4 27.A x g7 E! x f3 28.e x f3 � xf3 29 . .£)e4 .£)d5 1-0 Two points for 1 2.4::lh 4!. (E64) Weaknesses: 25.a4! ± Fixing a weakness. 25.1"!d5 also gets one point. 25 ...h5 25 . . .Jlb2 26.1"! c2 Aa3 27.1"!d5 Jlb4 2 8 . A g 5 ! l"! e l + 2 9 . �g 2 l"! b l 30.1"!c7 ± (Postny i n CBM 95). 26.E!d5 .1l.f8 26 . . . 1"! a6 27.1"! cc5 ± . 27 . .1l.b6 .1l.h6 28.E!c7! E!xc7 29 ..1l. xc7 E!c8 30 .1l. x a 5 E! c l + 3 1 .�g2 E!c2 32 . .1l.b6 .il.g7 33. E!d8+ 1-0 One point for 25.a4. •

(E65) Improving Piece Placement, Weak­ nesses: 24 ... .£)a71 Black's worst placed piece is brought into play with great effect. From b5 it will have access to a3, c3 and d4 and protect d6. In short, it will be transformed into a mighty oc­ topus. 25 ..£)c1 .£)b5 26. .£)ce2 E!bd8 27.h4?1 .£)e5?1 27 . . . d5! 28.exd5 4Jb6 29 . .llx c5 4::l x d5 30:i�cl .£\bc3 3 1 .4::lx c3 4::l x c3 3 2 . 1"! xd8 El. xd8 3 3 . � e l El. d 5 34.Ae3 Ab5 -+ (H ick! in CBM 60). 28.�f4 d5 28 . . . �e7!?. 29.A x c 5 dxe4 30.E!xd8 E!xd8 31.fxe4 .1l.d7 32. .1l.xb4 � xc2

(E66) Weaknesses: 24. .£)e41 +- .£)b6 24 . . . l2:lxc4? 25.El.d7+ �g8 26.h6 +- ; 24 . . . �e7!? 2 5 . h6 f5 2 6 . 1"! d6! .£lb6 27.gxf5 exf5 28.hxg7 4::la xc4 29.Af6+ 'it>f7 30 . .£\g5+ 'i!tg8 3 1 .El.dl El.c8 32.El.hl El.c6 33 . .£\xh7 l2:ld5 34.Jla l +- ; 24 . . . h6 25.g5 hxg5 26.f!.d7+ 'it>g8 27.h6 gxh6 28.l2:lxf6+ �f8 29.lte5 +- . 25.g5 f5 25 . . . l2:laxc4 26.gxf6 gxf6 27.4::l xf6 h6 28.4Jg4 +- ( Yus upov i n CB M 4 3 ) . 26 . .£) x c 5 .£) a x c4 27 . .£)d7 E!c8 27 ... 1"! b7 28.4::l xb6 .£\xb6 29.El.bl +- as the pin is deadly. 28 . .£) x b6 .£) x b6 2 9 . E!d6 E! c 2 + 30. �f3 E! a 2 3 1 . .1l. x g7 .£) c4 3 2 . E! d7+ �e8 33 .E!a7 .£)d6 34.g6 h x g6 35.h6 .£)e4 36.�g2 E!xf2+ 37.�g1 E!d2 38.h7 E!d1 + 39.�g2 E!d2+ 40.�fl 1-0 One point for 24 . .£\e4 and one for the assessment that White is winning. (E67) Weaknesses: 18. .£)d2! In the game, White played 18 . .llx c5? bxc5!

"A good example of how important the pawn structure is for the evaluation of a position: With the a-pawn on a2 (and the knight on c3 to prevent . . . a7-a5-a4) 1 69

The ChessCafe Puzzle Book 2 ( E69) Weaknesses: 17 . .£)fd21 This brings a fresh unit to the blockading force. 17.Jlh7+ 'it'h8 18.Ae4 gets one poi nt. 17 Aa6 17 . . . �c7?! 1 8 . 4::le 4 E!fb8 1 9 . 4::l e c5 4::l x c5 20. 4::l x c5 Jlc8 2 1 .Jlh7+ 'it'h8 22.Jle4 ± . 18.Axa6?1 18.4::lc4!? Jlxc4 19.\ttxc4 E!fc8 20.4::lx a5! .ilxa')! {20 ... cS? 21 .4::lc6!! ± ) 21 .b4 Jlxb4 22.E! xb4 and White has a very pleasant advantage (M ikhalevski in CBM 1 06). 18 .§ x a6 19 .£) e4 �b5 20 . .§a2 .§b8 2 1 . .£) bc 5 A x c 5 22 . .£) x c5 .£) xc5 23.� xc5 �xc5 24 .§ xc5 a4 25.�fl .§b4 26.�e2 .§ab6 27. .§c2 �f8 28.�d2 �e7 29.�c1 �d6 30 ..§a3 f5 31 . .§ac3 g5 32 . .§c5 .§a6 33 . .§ 5c3 h5 34.h3 .§b5 35 . .§c4 Yz-Yz Two points for 17.{Jfd2 .

White would be better. But now the b3pawn is a serious weakness. The "good knight against bad bishop" intention does not apply here." (L.B. Hansen in CB M 7 0 ) 1 9 . E! h d l g6 2 0 . E! d 3 fS 2 1 .4::ld 2 E!b6 22.f3 Jlg5 23.E!dl E!fb8 Now it is obvious that Black is on top. ln the game, he went on to win by cen­ tralizing his king and creating a second weakness on the kings ide. ; 1 8.Jld2 gets one point. 18 g6 18 . . .f5 19.exf5 E!xf5 2 0 . f3 ;!; . 1 9 . b4 .£l d 3 1 9 . . . 4::l xa4? 20.E!al {Jb2 21 .E! xa7 Jld8 22.E!d7 ± . 20. .§ed1 f5 21.f3 f4 22.Af2 .§fc8 23 . .§b3 .£) x f2 24.�xf2 � 0-1 Two points for 18.{Jd2!.

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(E68) Weaknesses: 30.b41 +-

(E70) Weaknesses: 3 5. . .e41 36.�g4 3 6 . d x e4 � e 5 + 3 7 . 'it'h l \tt x b 2 ! -+ ( Ftac n i k i n CBM 8 6 ) . 36 ... � x g4 37.h x g4 .£) e 5 38. �g3 3 8 . d x e4 {Jf3+ -+ . 38 exd3 39.b3 g6 40.e4 h5 41.gxh5 4 l .g5 h4+ -+ . 41 ... gxh5 42.�f2 h4 0-1 One point for 35 ... e4!. •..

(E7 1 ) Weak Color Complex: 19....Q.f61 This exchanges the key defender of the dark s q u a r e s . 20 .Q. x f6 .£) x f6 2 1 . � b 2 .£l d 5 2 2 . .£) b 1 .£) e4 2 3 . .£ld4 .£)dc3 24.e3 .£) x b 1 25 . .£lb5 �b6 26. .§ xb1 h6 27. .§1x:1 .§ xc1 28 .§xc1 .§d8 29.�e5 .£)d2 30 . .£)d4 A x g2 3 1 . � x g 2 �b7+ 32.�h3 .§d5 33 . .§c7 �a6 34.�f4 �fl+ 35.�g4 h5+ 36.�h4 g5+ 37.� xg5+ .§ xg5 38.� xg5 � x f2 0-1 •

Three points for this immediate hook. 30:�c3+ gets two points. 30 . . . 'it'g8 3l .h4 M5 32.bxc5 .ilxe4 33.E!xe4 dxc5 3 4 . a 5 h5 ± . 30 . . . Af5 30 . . . c x b 4 31 .\tth 2+ 'it'g8 32.\tt xb4 4::lh 5 33.a5 +- ; 30 . . . 'it'g8 31 .bxc5 dxc5 32.\tth 2 Jlxa4 3 3 . {J x c 5 +- . 3 1 .bxc5 A x e4 3 2 . � x e4 d x c 5 33.g3 � x e4 ? 1 3 3 . . . 4::J h 5 34 .�xg6+ 'it'xg6 35 .Jld3+ ""g7 36.E!e6 {Jf6 37.a5 +- ( Postny in CBM 1 06). 34. .§ xe4 .£)g6 35 . .§ xg4 h5 36 . .§g5 .§f5 37 .§ xg6+ �xg6 38.Ad3 �g5 39.f4+ �g4 4o.�g2 §.5f7 41 ..§h1 1-0 •

•

(E72) Weak Color Complex: 25 . .£)a41 Without the b6-bishop, B lack cannot bear the pressure on the dark squares. 2 5 . . . f5 2 5 . . . Jla S 2 6 . � x d 4 A x e l 27.E!xel f5 28.4::lc 5 E!e8 29.Jld5+ cxd5

1 70

Solutions 30 . .§ e7 +- ( R i b l i i n CBM I 09 ) . 26 . 4) x b6 f x e4 27 . t\' x d4 a x b6 28.E{ x e4 t\'c5 2 9 . t\'d3 t\'f5 30.E{ae1 E{a4 3 1 .f3 h5 3 2 .t\'b3 E{axe4 33.fxe4 t\'c5+ 34.ciflg2 g5 3 5 . Ae3 t\' x d6 3 6 . J,l x g 5 t\' c 5 3 7.J,lf6 d 5 38.e5 t\'d4 39. t\'c2 1-0 ( E 7 3 ) Weak C o lor C o m p l e x : 18. t\'f21 +- B l ack cannot bear the pre s s ure any l o n ger. 18 ... E{c6 1 9 . e x d 5 E{c4 20. E{fe 1 Ad7 21 .J,lb6 t\'f8 22.E{ xe8 J,lxe8 23.d6 Axb5 24.axb5 4)d7 25.Axa5 t\'a8 26 .Ac7 A x c3 2 7 . b x c 3 E{ x c3 28. t\'d4 t\' a 3 29.ciflh2 4)c2 30.J,l x c 2 Et x c2 3 l . Et e 1 t\'a8 3 2 . E{e7 4) f8 3 3 . t\'d5 t\'a2 34.t\' xa2 E{xa2 35.d7 1-0 (E74) Weak Color Complex: 1.t\'e31

1 ... E{bc8 l . . . .§c6 2 . .§ e7 �f8 3 . .§ xd7 .§ f6 4 . .§ e 7 +- ; 1 . . . 4Jf6 2 . �e5 .§ c6 3 . 4Jg4 'it'g8 4 . .§ x f6 .§ x f6 ( 4 . . . h 5 ? S.4Jh6+ 'h7 6 . .§ f7+ \t> x h 6 7:?ffg 7+ \t>gS 8 . .§ f5+ 'it'xfS 9.�e5 + ) 5.4:'\xf6+ \t>f7 6.4:'\xh7 'g8 (6. . . .§c8 7.4:'\gS+ 'f2 §al 31.b3 §xa2 32.\t>e3 a4 33.bxa4 § x a4 34.§xc5 §a3+ 35. \t>d2 b3? .

•..

35 . . . §.a 1 gives Black drawing chances. 36.§c3 b2 37.§c8+ \t>f7 38.§b8 §al 39.§ x b2 §gl 40.c4! § xg2+ 41 .\t>c3 §g5 42.\t>b4 §f5 43.c5 \t>e7 44.§d2 §f4+ 45.\t>b5 §xf3 46.c6 §b3+ 47.\t>a6 h 5 48.c7 §a3+ 49.\t>b7 §b3+ 50.\t>c8 g5 5 1 . §d7+ \t>e6 5 2 .\t>d8 §c3 53. §d4 \t>e5 54. §b4 §d3+ 5 5 .\t>e7 §c3 56 .\t>d7 §d3+ 57.\t>c6 §c3+ 58.\t>b7 \t>f5 5 9 .c8�+ § x eS 60. \t> x c8 g4 61.§b5+ 1-0

attack. 18.a4 Black 's point is clear af­ ter 18.'lii xf5 exf5 1 9. a4 ( 1 9.4:Jc6 'ttJf8 2 0 . §. f3 4:Je8 + ) 1 9 . . . 4:Je6 2 0 . §. f3 f6 2 1 . 4:Jg6 'ttJ f7 + a n d B l ack w i n s . 1 8 .£le81 There i s no need to improve White's pawn structure with 1 8. .. 'lii xd3? 1 9.cxd3. 19.�d2 .ldd6 20.g4 �h7 21.§a3? White blunders the exchange, but even after the better 2 l .f5 4:Je4 22."fig2 §. xc3 23.fxe6 fxe6 24.a5 hxa5 25.§. xa5 4:Jf6 26.§. f2 �e4 + , Black is winning. 21. .. f6 22 . .£ld3 .ldc4-+ and Black converted his advantage. Two points for 17 . . . �f5!. •..

(Tl .02) Opening the Position: 14.c51 ± IfWhite first tries to support an advance on the queens ide and in the center with 1 4.§.fd l ?!, it gives Black the opportu­ nity to contest the queenside expansion: 14 . . . c5 1 5 .hxc5 hxc5 1 6. §. a h l 4:Jg5 1 7.4:Jxg5 �xg5 18.d5 itcH 1 9.ltc3 f5 w i th good c o u n terpl ay, A . L e n z ­ K. Lahno, Rethymnon 2003 . ; Exchang­ ing first is not the best move either: 1 4 . dxe5?! dxe5 1 5 .c5 hxc5 1 6.hxa5 4:Jd6!= and Black equalizes. 14... bxc5 If Black tries to sidestep the fork on c6 with 14 . . . .ild5, White plays it anyway: 1 5 . c 6 .£Jdf6 ( 1 5 . . . 4:Jh8 1 6 . h 5 + - ) 1 6.dxe5 dxe5 1 7.b5 ± ( Ribli in CBM 99). 15.bxc5 dxc5 16.dxe5

Test 01 (T l .O I ) Simpli fication: 17 �f51 No! Black finds a way to neutral ize the cen­ tral ized steed. He could have gone wrong with 17 . . . g6? after which 18.g4, followed by f5, gives White a strong .•.

The exchanges have resulted in both sides having doubled pawns, but that is

1 72

Solutions where the s i m i larity ends. B l ack's doubled c-pawns are isolated and weak and will become targets for the white pieces. On the other hand, Wh ite's doubled e-pawns help control the cen­ ter. The e5-pawn in particular restricts B l a c k ' s c o u n terpl ay. t 6 . . . g8 14.4Jxd5 exd5 1 5 :\11f5 Black's light squares appear to have a "Welcome" sign posted on them for White's benefit. 1 5 . . . Jlb4+ 16.'it>e2 "g7 2 9 . .§g1 .§g6 30.'it>d1 Black must lose material. So 1 -0.; 7 . . . 4Jc6? is also incorrect. 8.g4 Ae4 9.f3 Jlg6 1 0.h4 ± . Black equalizes after 8.g4 Ag6 9 .£J xg6 9.h4?! 4Jxe5 1 0 . d x e 5 h5 'i' . 9 h x g6 1 0 . Ag2 .£Jc6 = .

27 . . . .§ f8 2 8 . g 5 .§ a 5 29 . .§ e 1 .§ b8 30.Ad3 .§g8 3 1 .'it>d2 ± . 28.Etf6 Eta5 28 . . . 'lt>d8 29 ..1lxe6 fxe6 30 . .§ xe6 .Q.d7 3 l . .§ d6 .§ a 7 3 2 . e6 +- . 29. Et x e6+ Cit'd8 30.Etd6+ Cit'e7 3l.Ete6+ Cit'd8 32.Etf6 Et xe5 33.Axf7 Cit'e7 34.g5 Etxg5 35.Ete6+ Cit'f8 36.Axe8 1-0 Two points for 24.e5!. (T2.02) Opening the Position : l.h41 White's h-pawn is the crowbar looking to pry open Black's position. 2 1 ."h2 �f4+ -+ .

30 ... �g5 31.�h2?1 �h4+ 32.�gl �g5 33.�h2?1 §.e8?1 33 . . . e4 34.fxe4 � h 4 + 3 5 .\t>g l d4 ! ! -+ . 34.Jl.,b l ? l c:. 34 . l':! e d l + . 3 4 �h4+ 3 5-�gl �g3 36.�hl �h4+ 37- �gl �g5 38.�h2 d4 39.�f2 �h5+ 40.�gl �g5 4 1 . � h 2 Jl x f3 4 2 . �g3 .•.

4 2 . g x f3? � h 5 + 4 3 .\t>g l ( 4 3 .\t>g3? �h3 # ) 43 . . . .£lh3+ -+ ; 42.�xf3? �h4+ 4 3 . \t>g l � x e l + -+ . 42 . . . � x g3+

4 3 . � x g3 Jl.,c6 44.-'l.e4 Jl x e4 4 5 . §. x e4 4) h 5 + 46. �f2 4) f6 47.§.el �h7 48.§.c2?1 48.\t>e2 was more tenacious. 48 e4 49.§.c7 d3 50.§.fl e3+ 5 1 .�el e2 52. §.gl 4)d5 53.§.d7 4)b4 54.�f2 §.f8+ 55 .�el 4)c2+ 56.�d2 §.fl 0-1 One point for 2 8. . . .£le6 and one for the assessment that Black is clearly better. •..

(T2.10) Opening the Position: l l .d511 White charges forward in the center. B lack has a number of alternatives, but all fall short. 11 ... 4) xd5?1 This is what the H ungarian grandmaster p layed. There are three other moves to be con­ sidered. The first is l l . . .i.txc3?, after which White does not immediately take the bishop, but plays 1 2.dxe6. B lack then has four possibilities.

12 . . . i.txf3 Probably the best. Also: a) 12 . . . Ab4 trying to hold on to the bishop loses to 1 3 .exf7+ \t>e7 ( or 1 3 . . . \t>fB 1 4 . .£lg5 �c8 1 5 . .£le6+ \t>xf7 ( 1 5 . . . \t>e7 1 6.�e2 'it> x f7 1 7 .�e5 +- ) 1 6 . .£lc7+ \t>f8 1 7 . .ild2 .ild6 1 8 . 1':! a e l +- and w i n s . ) 14 . .£lg5 �b6 1 5 .�e2+ 'it'd8 1 6 . .£le6+ \t>c8 1 7 . .1le3 +- ; b) 1 2 . . . i.ta5

again trying to keep the cleric loses to 1 3 .exf7+ \t>f8 0 3 . . . \t>e7 1 4 . .£lg5 +- ) 1 4 . .£lg5 �e7 ( 1 4 . . . �c8 1 5 ..ilf4 .ilb4 16.�d2 .ile7 1 7.1':!ael .£lc6 18 . .£le6+ \t>xf7 1 9 . .£lxg7+ \t>g6 20 . .1lh6 �g4 2 l .�c2+ \t>xh6 2 2 . .£lf5+ +- ) 1 5 . .ile3 .ilb4 1 6.1':!ael +- ; c) And if 12 . . . fxe6, then 1 3.�xc3 .1ld5 1 4 . .£lg5 ± ; 13.exf7+ (after 1 2 . . . .1lxf3) 1 3 . . . \t>f8 ( 1 3 . . .\t>e7 1 4 . �x c 3 .ild5 1 5 . 1':! d l 'it' x f7 16 . .1lg5 +- ) 1 4 .bxc3 .lld 5 l S .l':!dl ± ;

The second possibi l ity for B l ack i s l l . . .exd5, after which there fol lows 1 2 .1':! e l + .lle7 1 3 .i.tg5 0-0 ( 1 3 . . . d4? 1 4 . .1l x f6 ( 1 4 . § x e 7 + ! ? ) 1 4 . . . g x f6 1 5 . .£l x d 4 �xd4 1 6 . .£l d 5 .£lc6 17.§adl +- ) 1 4.§adl t with advantage to White . ; Finally l l . . ..llxd5!? 1 2 . .£lxd5 exd5 ( 1 2 . . . .£lxd5 1 3 . .1lg5 t ) 1 3.i.tg5 0-0 1 4 . 1':! ad l t also gives White the ad­ vantage. 1 2.4) xd5 Jl., xd5 1 2 . . . exd5!?

l eads to great com p l i c ations after 13 . .1lg5 f6 (Not 1 3 . . .�d7? 1 4.1':!fe l + 'it>f8 ( 1 4 . . . .1l x e l 1 5 . 1':! x e l + 'it'f8 1 6.�c5+ \t>g8 1 7 . 1':! e7 h6 1 8 . 1':! xd7

1 83

The ChessCafe Puzzle Book 2 � x d 7 1 9 . �c7 +- ) 1 5 . � e 5 �c8 1 6 . � x c 8 + .llx c8 1 7 . l=! e c l �d7 1 8.Jlxd5 +- and Wh ite is winning.) 14.l=!fe l + (Also worth consideration is 1 4 .Ad2!?) 1 4 . . . Jlxel 1 5 . l=! x e l + 'l!tf7 16.�e5+! (Not I 6:ii1f5? .§e8! ( 1 6 . . .'1!tf8? 1 7.�d4 Ac8 18.l=!e6 .§ a7 1 9.Axf6 .§ f7 2 0 . A x g 7 + 'l!t g 8 2 l . � e 5 .!l x e 6 2 2 . � x e6 +- ) 1 7 . l=! xe8 'l!t x e 8 ( O r 1 7. . :�xe8 1 8.Axd5+ Jlxd5 1 9.thd5+ 'it'f8 20. �xa8 ( Perhaps 2 0 . A e 3 ! ? ) 2 0. . . fxg5 2 1 .h3 ;!; and White has a slight edge.) 18.�e6+ �e7 1 9.�g8+= and White has a slight advantage.) 16 . . .'1!tg8 ( N o t 1 6 . . . '1!tf8? 1 7 . �c 5 + 'l!tg8 1 8 . .§dl +- ) 17 . .§dl 'l!tf8 (or 17 . . . �d7 1 8.�c6 +- ) 18 . .ilxd5 .ilxd5 1 9.tk5+ �e7 0 9 . . . '1!tg8 20 . .§ xd5 �e8 2 1 . .§ d6 � x e 5 2 2 . � x e 5 fx e 5 2 3 . l=! d8 + +- ) 20.�xd5 fxg5 ( 20 . . . �xe5 2 l .�xe5 fx e 5 22 . .§ d8 + 'l!tf7 2 3 . l=! x h8 +- ) 2 1 .�xa8 �xe5 2 2 . �b7 �e8 23.l=!cl �c6 24 . �xc6 �xc6 2 5 . l=! x c6 ± and

Wh ite h a s a w i n n i n g e n d g a m e . 13.Jlg51 Jlxb3 Wh ite has a strong initiative after 1 3 . . . f6 1 4 .Axd5 exd5 1 5 .Jle3 �d7 (also Wh ite has the edge after 15 . . . 0-0 16.�b3 �c6 1 7 . .§ fd l t . ) 1 6 ..§ a c l 0-0 1 7 :{ij< g8 3 0 . l3. g l + �h8 30 . . . 'i!i'f7 3 1 .l"!.g7+ 'i!i'e8 32.'i!txh3 l"!.f7 33.l"!.g8+

1 85

0

The ChessCafe Puzzle Book 2 �e7 34 .'it'h4 ± . 3 l . � x h3 � b4 3 2 . � h4 � d 3 3 3 . � x h 5 §f7 34.'ifi'g5 � f 2 ? 1 3 5 . E!f1 � d 3 36.§h 1 + E! h 7 37. § x h7+ � x h7 38.�f8+ 1-0 Two points for 23.g4, and two more if you calculated until 26.'iti>h2. Two points for 23.4Jb5 Ad7 24.a4. Test 03

(T3.0 1 ) Opening the Position: 42.f511 e5 Or 42 . . . exf5 43.4Jf4 4Ja6 44.4Je6 Ac7 45.4Je7 +- ( Dautov in CBM 8 1 ); 42 . . . gxf5 43.4Jf4 +- is also winning for White. 43.dxe5 fxe5 44.4) xe5 .Q.f6 O r 4 4 . . . g x f5 4 5 .4Ja7 a n d w i n s . 4 5 . 4) g4+ �g7 46.fxg6 'ifi' x g6 47.h5+ 'it'g7 48.h6+ �g6 49.4) xf6 �xf6 50.4)e7 d4 51.�g3 1-0 The white king is "in the square" and there­ fore B l ack resigns. Two points for 42.f5!!. (T3.02) Weaknesses: 18.a51 Forcing the advance of the black b-pawn. All of a sudden, the Achilles' heel of Black's position is evident: the bishop on b7. Its mobility has been severely restricted by its own pawns on the white squares. 18...b5 19.4)a2 Also worth consider­ ation i s 1 9 . 4Ja4!? 4Jd7 ( 1 9 . . . bxa4? 20:�xb7 § fb8 2 l .i!rc6 ± ( Donev in CBM 72); 19 . . . e 5 ? 2 0 . d x e 5 i!rxeS 2 1 .4Jc5 Ac8 2 2 . '�b4 ± ; 19 . . . § fc8? 2 0 . 4Jb6 § x c l + 2 l . § x c l § e8 2 2 .iirc3 ± ) 2 0 . 4J c 5 LLl x c S 2 l . § x c 5 §ac8 ;!; . 19 . . . §fc8 20.'llt b4 'llt x b4 20 . . . i!rd7 2 l .§ xc8+ § xc8 22.§cl §c7 2 3 . § c 5 ;!; . 2 1 . 4) x b4 We have an endgame that looks almost equal, but in fact it is not, mainly because of Black's "bad" bishop. Although White's bishop is not exactly dominating the board, it is better than its black coun-

terpart. These kinds of endings, with one side having a clearly worse minor piece, are not that uncommon and the s t u d e n t s h o u l d note h o w w e l l Khalifman handles it. The winning plan for White is as fol lows: The first phase is to exchange the heavy pieces - the rooks will come off. Then, making sure as many black pawns as possible remain on white squares, thereby continuing to limit the scope of the bishop, White will exc hange h i s b i shop for the b l ac k knight. Final ly, alternating the threat of winning material with an invasion of the b lack position with the king, B l ack eventually is in zugzwang. Watch how "Alexander the First" carefully imple­ ments this plan.

21 ... �f8 22.�fl h6 23.�e1 �e7 24.�d2 �d6 25.f3 E!xc1 26.E!xc1 E!c8 27.E!xc8 j}_ xc8 Phase one: mis­ sion accom p l i shed. 28 . .Q.e2 Jl.b7 29.4)d3 4)d7 30.f4 Jl.c6 31 . .Q.h5 f6 32.�c3 �e7 33.�b4 �d6 Oth­ erwise the white king breaks into the black position via c5. 34 ..Q.e8 4)b8 35 . .Q.g6 Not 35.Axc6 4Jxc6+ and it i s B l ack who i s w i n n i n g ! 3 5 . . . Jl.d7 36.�c3 4)c6 37.b4 Not only protect­ ing the a5-pawn, but fixing the black q ueenside pawns on wh ite squares. 37 . . . 4)e7 38 . .Q.h5 4)f5 39.�d2 .Q.c8 40.4)c5 4)e7 4 1 ..Q.f3 4)c6

1 86

Solutions 87.4)d3 Ae6 88.4)c5 Ac8 89.h5 1-0 Two points for 18.aS!.

42.�c3 f5 Another black pawn to a white square. 43.Ah5 �e7 44.4)d3 Ad7 45 . .£l c 5 Acs 46. Af3 g 6 47.g4 �d6 48.h4 fxg4 49.A xg4 h5? The h-pawn joins its brethren on white squares. 49 . . . 4Je7 was called for, after which White still has to work to exchange h i s bi shop for the b l ack knight. 50.Af3 4)e7 5 1 .e4 d x e4 52.A x e4 4)d5+ 5 3 . A x d 5 e x d 5 Phase t w o : m i ssion accom pl i shed. 54.�d3 �e7 55.�e3 �f6 56.�f3 Ag4+ 57.�f2 Ac8 58.�e3 �f5 59 . �f3 �f6 60 . .£l d 3 Ag4+ 61.�g3 Af5 62.4)c5 Ac8 63 .£lb3 Ag4 64.�f2 Af5 65 . .£ld2 Acs 66.4)fl Ae6 67. .£le3 �f7 68.�g3 �g7

(T3.03) Outpost: 13...g511 14.f5 1 4 .fxg5 hxg5 1 5 . ..1lxg5 4JeS 1 6.�g3 0 6.�xf6 ..ll x f6 17 ..1l xf6 '{;lb6 18 .. llxh8 �xd4+ 1 9.�hl �cS -+ ) 16 . . . 4Jfxg4 17 . ..1lxe7 't; x e7 1 8 . h 3 �b6 -+ . 14 . . . 4) e5 15.�h3 1 S.�g2 't;d7 1 6.h3 ( 1 6 . ..1le2 h5) 16 . . . hS gives Black a strong initia­

tive in both cases. 15 ... �d7!

•

69.f5!1 gxf5 70.�f4 �f6 The tem­ porary sacrifice of the pawn has resulted in two possible entry squares for the white king: e5 and g5 . Black cannot keep White from both and also hold both the d5- and f5-pawns. 71 .4)c2 Ad7 72.4)e1 Ac8 73 . .£ld3 Ae6 74.�f3 �e7 75.�g3 �f6 76.4)c5 Ac8 77.�f4 Phase three: mission ac­ complished. It is time to bring the full point home. 77 ... �g6 78.�e5 f4 7 9 . � x f4 �f6 80. �g3 �g7 s t . �f3 �g6 82 . .£l d3 Ag4+ 83 .�e3 Ae6 8 4 . 4) f4+ �f5 85 . 4) x h 5 �g4 86. 4)f4 Jl.f7

The king secures the center itse l f! 16.Ae2 h5 17.fxe6+ fxe6 18.gxh5 g4 19.�g2 E! xc31 This typical ex­ change sacrifice destroys White's hopes completely. 20.bxc3 Axe4 21 .�f2 4) xh5 22.J}.f4 g31 23.hxg3 4) xf4 24. � x f4 E! h l + 2 5 . �f2 E!h2+ 2 6 . �e3 Ag5 27. � x e4 A x f4 28.gxf4 E!h3 29.4) xe6 �xe6 0-1 Three points for 1 3 . . . gS!!. (T3.04) A Second Front: 24.a4!! Here it is - the second front. 24.l'H h7? This dissipates White's advantage. 24 . . . Ag7 2 5 . §. x d 8 + 't; x d 8 2 6 . §. xg7 "ifl x g7 27:#Jxe6 4Jf5 28 ...QAS gxf') 29.�xf5 h4 30.�d2 't;e7 3 l .�e4 �g')+ 32 .'t;c2 't;e6 33 .�c6+ �f7 = ; 24.§. 8117 ..ll g7 25.§. 1 h6 is also quite strong and gets three points, e.g. 25 . . . §. f8 26.f4 �g8 27.§.h2 �f7 28.'t;d l . 24... 4)f5 Black

is also in trouble after other moves:

1 87

The ChessCafe Puzzle Book 2 24 . . . a6 25.1'! l h7 ..llg7 26.l'! xd8+ 'it'xd8 27 .1'! xg7 'li:txg7 2 8 . 'li:t x e 6 4::\ e cS 29.aS +- ; 24 . . . bxa4 2S .d5 +- ; 24 ... b4 25.a5 4::\bdS 26. l'! l h7 ..llg7 27.l'! xd8+ 'it'xd8 28.l'! xg7 'li:txg7 29.'li:txe6 4:\c7 3 0 . 'li:td6+ 'it'c8 3 1 .a6 +- ; 24 . . . 4:lxa4 25.d5 4::\c S 26.d6 4::\fS 27.l'! l h7 .llg7 28 . .1lc6+ +- ; 24 . . . c3 2 S . l'! l h7 .llg7 2 6 . l'! x d 8 + 'it' x d 8 2 7 . b x c 3 < a8+ �e7 24. 'lta7+ 24. 'l;t"xh8? fl g2?? -t;irdS • ; 26.'it>e2? fl x f3 e 4 + 27. 'it>><e4 (27.'it>g3 e3 f3 -t;irf4+ 30.'it>g2 -t;irg4+ 3l .'it>fl -t;irc4+ 32.'it>e l 'l;t"e4+=; 27.'it>g4?? i;j-e6+ 28.'it>g3 'l;t"xh3 • ) 27 . . . i;j-dS+ 28.'it>e3 f3 i;j-dS+=. 24 �f8 2 5 . 'lt a8+ 2 S . 'it>fl < c 7 13 e 5 36 .Q.e4 13de8 37 . 13 1 x c6 �g8 3 8 . 13d6 A,e6 39.13 >h l 'it>h8 6.Jlf5 �g7 7.Jld2 il.d6 8 . � g l �h4 9 . f4 ± ; l . . . d xe4? 2.�c4+ �f7 3.LLle5 +- ; l . . .fxe4 2.Jle6+ � f7 3 . LLld2 af6 4 . LL\c4 'it>g7 (4 . . . d4 5 . .1la5 �e8 6.LL\e5 ± ) 5 . .Jle5 �f8 6.f3 ± .

(T4.08) Bad Bishop: 17 f6! limits the problems. In the game, B lack played .••

2.A xf6 � x f6 3.exd5 � b6 4.d6 g5? 4 . . . �fe8 5.�d2 �cd8 6.�acl .ll xf3 7.gxf3 � e6 8.t1t'f4 ± . 5 .�e7 -'l. x f3 6.gxf3 §cd8 7.§ac1 �h6 8.jlxf5 §de8 9.� xa7 §xf5 10.�xb6 §ef8 1 1 .�c7 §xf3 12.d7 �h5 l3.d8� �g4+ 14.�h1 1-0 Two points for l .e4! ! .

(T4.07) Simpli fication: 24.-'ta71 Karpov does not want any exchanges because of his space advantage. Instead, he plans to double on the open file in the bishop's shadow. 24 . . . � e8 2 5 . -'t c 2 � c7 26. §ea 1 �e7 2 7 . A, b 1 jle8 28.�e2 �d8 29.�h2 A,g7 30.f4 Open ing a second front, the typical technique to exploit such an advantage. 30 f6 3 t .f5 g5?! 3 2.Ac2 Af7 33-�g3 �b7 34.-'td1 .••

17 . . . �c8? 18 ...1lxe7 'it>xe7 19.LLld5+ 'it>f8 2 0 . � h 3 � h 6 2 l . � d t1te8 2 2 . � xc8 �xc8 23.�g5 f6 24.�d2 �c5 25.b4 'l;'tc6 26.�gl � h8 27.�g3 t:Yb5 28.�c3 'it>g8 29.�c7 'it>h7 30.'it>b2 �f8 3 l .c4 �e8 3 2 . � x b7 "i'Ja8 3 3 . � c7 �h8 34 . �c 2 �b8 35 . �a 4 � c8 3 6 . �d7 � xc7 3 7 . � xc7 �e8 3 8 . � x d 6 LL\f2 39.LLlc3 �a8 40.�d5 �a7 4 l .c5 LLlh3 4 2.�d8+ 'it>h7 43.LL\d5 1 -0; 17 .. Jtxg5? 18.thg5 LL\f2 1 9.LLld5 'it>d7 20.�e7+ �c8 2 1 .f6 g6 22:\;1xf7 'it>b8 23.�xg6 LL\xhl 24.�gl ± ; 17 . . . LL\f6? 18.�h3 �c4 1 9.Axf6 Axf6 20.LL\d5 ± . 18.jle3 §c8

19.§h3 0-0 20.�d5 Ad8 ;t Four points for 17 .. .f6!. (T4.09) I mproving Piece Placement: 1 8 . � b 1 ! 1 8 . � f l ? Ad7 1 9 . f4 gxf4 20.� xf4 LLlg7 2 l .�afl f5 . 18... §b8 I f B l ack tries t h e d i rect 1 8 . . . g 4 , then 1 9 .hxg4 LLlf6 20.f3 Jlxg4 2 1 ..£\d2 (But n o t 2 l . fxg4? LL\xg4 2 2 . � d 2 f5 -+ ) 2 1 . . .Ah5 22.LL\c4 �g3 23.�f2 �xf2+ 2 4 . 'it>x f2 � ad8 2 5 . a 5 ± ; Or 1 8 . . . h6 1 9 . LLld 2 � x b 2 2 0 . a 5 f5 ( 20 . . . �d4 2 l .�xd4 cxd4 22.LL\f3 ± ) 2 1 .LLlc4 �d4 22 .�xd4 cxd4 23.�adl ± ; 1 8 . . . �xb2 1 9 . � x g 5 + �g7 2 0 . � xg7+ LL\ x g7 2 l .LL\d2 ± . 19.�d2 f6 20.b41? �e7 20 . . . cxb4? 2 l . �a7 +- . 21.bxc5 dxc5

Karpov wants to exchange Black's main defender, the light-squared bishop, to exploit the weak color complex on B lack's kingside. 34 . . . h6 35.Ah5 �e8 36.�d1 �d8 37.§a3 �f8 38. § 1 a 2 �g8 39. � g4 �f8

22.a5 Ad7 23.�b3 From previous variations, we already know that c4 is an excellent square for the knight, but Khal ifman looks a little deeper and re­ alizes that the invasion of the knight on c5 will be decisive. 23 ... §c8 24.§ac1 c4 2 5 . A x c4 �d6 26.Ad3 Ab5 2 7 . � c 5 jl x d3 28. � x d3 �e5

1 94

Solutions 29.�d7 With its final move of the game, the white knight seals B lack's fate. 29 ... �f4 30.E! xc8 E! xcS 31.g3 1-0 Three points for 18.�b l ! . (T4. 1 0) Positional Exchange Sacrifice: 22.E!c51 Plugging c5 with a rook, at­ tacking the black queen and removing a defender of the black squares at the same time. 22 J}.xc5 23.Etxc5 �d6 •..

23 . . . � a 2 ! ? 2 4 . '�e4 'it>f7 ( 24 . . . 'it>h7? 2S.�h4 +- ) 25 .�g5+ 'it>e7 (25 .. .fxg5 26.�f3 + +- ) 2 6 . i;J x g6 w i th a very

strong attack. 24. �d31 �f7

(T4. 1 1 ) Opening the Position: 23.d51 Things aren 't always what they appear to be! 23.l"l.al gets one point, if you were not planning to continue with d4d5 soon and the fu ll three points for 23 . . .fS 24.d5. 23 ... .£l xd5 Taking with the e-pawn gives White a very useful square on d4: 23 . . . exd5 24.4Jd4! l"l.g5 ( 2 4 . . . ..ll c 8? 2 5 .'{�· x e 7 ! +- ; 24 . . . 4Je6 25 . ..ll x b 5 ! c x b 5 2 6 . �c x b 5 i;J e 5 27. i;Ja3 +- ) 25 .4:lcxb5 cxb5 26.c6 Jla6 27 . i;Ja 3 +- ( F i n k e l i n CB M 7 4 ) . 2 4. .£l x d5 E! xd5 24 . . . exd5 2 5 . l"l. e l l"l. e8 2 6 . 4Jd 4 l"l. gg8 2 7 . l"l. a l +- .

2 5 . E! x d 5 e x d 5 2 6 . Et e 1 AdS 27.Ah3 f5 27 . . ...Q.c8 28.i;Jh6!? l"l.g6 29.i;JxhS +- . 28.J}.xf5 E!gS 29.�h6! Jle7 30.�e5 Jlg5 31.�xh5 Jl,d2 3 2 . � d7+ � a 7 3 3 . E! a 1 + Jla6 34.� xf7 1 -0 Three points for 23.d5!!. (T4. 1 2) Weak Color Complex/Domina­ tion : 41.�f41 was called for and gets two points. In the game, White played 4 l .l"l.f6?. 24 . . . 'it>h7? 25.l"l.hS +- ; 24 . . . f5 25A:le5 ± "This is the bit which the attacker can do intuitively. If black is forced to play . .fS here, then the compensation does not need to be finely calculated - it will work on positional grounds alone ." ( We l l s in CBM 7 6 ) . 25.�e5+1 O f course, a l l games must ultimately be resolved tactically. Wells fi nishes the job nicely. 25 ...fxe5 26.�f3+ �gS 27.�f6 E!e7 27 . . . �e7 28.�xg6+ 'it>h8 29.JlgS +- (Wells). 28.�xg6+ Wells misses 28.l"l.c3, which leads to a forced mate. 28 �h8 29 .�f6+ �h7 30.J}.f81? E! x fS 3 l . � x f8 AeS 3 2 . E!c3 e x d4 3 3 . E! h 3 + �g6 34.Eth6+ 1-0 Two points for 22.l"l.cS and the last one, if you saw that it leads to a winning attack. .

. • •

T h i s runs i n t o a n i c e re futation : 4 l . . . � x e 5 ! 4 2 . l"l. x e 5 l"l. x e5 4 3 . �d2 l"l. a l + 44 .'it>h2 l"l. xd5 4 5 . l"l. xg6+ fxg6 46.cxd5 Jle5+ and B lack converted his advantage i nstructively: 47.g3 l"l.a3 48.i;Jg5 'it>f7 49.�g4 l"l. xg3 50.i;Jd7+ 'it>f8 S l . 'it> h l g 5 5 2 . i;Jf5 + 1:le7 53.i;Je6+? (53.�c8 was much better,

1 95

The ChessCafe Puzzle Book 2 when White might even be able to save h i ms e l f. ) 53 . . . 'lti'd8 5 4 ." �g8+ 'lti'c7 55:iit•h7+ 'iti'b6 S6:�bl + 'lti'a5 57:�el + 'lti'b5 S8.�b l + 'lti'c4 5 9 . � a 2 + 'lti'd3 60:iit·bi + 'lti'd4 6l .�dl + 'lti'e4 62.�h5 'lti'xd5 63.�f7+ 'lti'c6 64.�e8+ 'lti'b6 65.�b8+ 'lti'a5 66.�a7+ 'lti'b4 67.�b7+ �c3 68.'lti'h2 c4 69.�bl 'lti'd2 70.�a2+ �e3 7 l . � a 7 + 'lti'd3 7 2 . �a 6 .il.f4 73:i!t·bs ..lle 5 74.�bl + 'lti'd4 75 .�b6+ �e4 76.�c6+ 'lti'e3 77. �b6 + 'lti'e2 78."i!t'c6 c3 79.�c4+ 'lti'd2 80.'lti'hl c2 8 l . � d S + 'lti'c3 0- 1 . 41. . . t\' x c4 4 2 . � h 5 + ctlfS 4 3 . t\' x g6 Jl x e 5 44.t\'h6+ ctle7 4 5 . .§ x e 5 + d x e 5 46.t\'f6+ ctld7 47. .§dl + +- . (T4.13) Weak Color Complex: 1 0...b5! B lack strikes back on the queenside, disrupting the pawn phalanx. l l .c5?! l l .cxb5 leads to equality after l l . . .ilb7 1 2 . e 3 � a 8 1 3 . � d l � a 3 1 4 . .11. d 3 �xb4+ 1 5 .�d2 �xd2+ 1 6.'lti'xd2 'lti'e7 1 7 . !! c l § aS 1 8 .Ab2 § a 2 1 9 . !! c 2 ..lle 4=. l l J}.b7 1 2.e3 t\'aS B lack puts immediate pressure on the knight and bishop. 13.t\'b2? Better is 1 3.�d l , although after 1 3 . . . �a3 1 4.�bl 0-0 "i' , i t i s B lack for choice. 1 3 J}. x f3 14.gxf3 'it xf3 15 .§g1 0-0 ••.

• . .

•

as his cavalry shows itself superior to the white bishop-pair. 16.J}.xb5 .§aS 17.Jlfl �e4 Threatening 18 . . . !! xa l + a n d 1 9 . . . � x f2 + . 1 S . .§g2 � df6 19.cxd6 cxd6 20.b5 �d5 2 1 .b6 �b4 0-1 White could not parry the various threats. Two points for lO . . . bS!. (T4.14) Counterplay: 20...c5! 21.dxc5 Jl x c 5 2 2 . � f3 .§cS 2 3 . 'ltb3? 23.�d3 .il.xe3 (23 ... .£lxe3?! is met by 24.!!fel d4 25 . .£la4; 23 . . . d4!?) 24.fxe3 !! xe3 25.�xd5 !! exc3 26.�xb7 �d6. 23 ... .§ xe3 24.fxe3 Jl xe3+ 25 .§f2 Jl x f2+ 26.ctl xf2 'ltb6+ 27.ctle1 'lte3+ 0-1 White resigned because of 28 ..£le2 !!cl + 29.!!xcl �xb3 -+ . One point for 20 . . . cS!, with the assessment that B lack is slightly better or has the initiative or gets strong counterplay. •

(T4. 1 5) I mproving Piece Placement: 16.�d3! Andersson's fine positional s e n s e d i rects h i s att e n t i o n to the queenside, gradually repositioning his pieces and putting the screws to the b l ack q ueen side. 1 6 . �c2? does not work: 16 ... cS "Liberating" the queen­ side! 1 7 ..£lg4 g6 18.dxcS �c6 1 9 ..£lxf6+ ilxf6 2 0 . e 4 ilxb2 2 l . � x b 2 � x e S 22. �f6 �b6 and White does not have much to show for his efforts. 16 ... g6 Not 1 6 . . . c5? 1 7.dxc5 AxeS 1 8.ilxf6 g x f6 1 9 .�g4 + 'lti' h 8 2 0 . �h 4 !! g 8 2 1 . � xf6 + § g7 2 2 . .£leS +- , as 22 . . ..11.xg2? is refuted by 23 . .£lxf7+ 'lti'g8 24 . .£lh6+ 'lti'h8 25.!!d7 .Q.f8 26 . .£lfS +- . 17. .§c1 �d7 1S.b4 Completing the total control over c5. 1S ... a5 19.a3 .§deS 20. .§fd1 t\'dS 21.J}.c2 t\'fS 2 2 . � c 5 ± � x c5 2 3 . d x c 5 .§dS 24.Jlb3 .§ x d 1 + 25 .§ x d 1 .§dS 26..§d3 a4 27..1lc2 The exchange of a few pieces has not made things easier for Black. His basic problem is that his •

White's pressure down the g-file looks menacing. Yet Black demonstrates that he has evaluated the position correctly,

1 96

Solutions bishops have such m iserable scope. True, there does not seem to be an im­ mediate target for White, but Andersson slowly repositions his pieces, looking to put B l ack i nto fatal zugzwang. 27 . . . Jlc8 28.f4 E! )(d3 29 .11. )(d3 Jld7 30. .1l.e4 'itd8 3 1 .'ltd2 .il.e8 32. 'itc3 f6 33. �f2 �f7 34.g4 .il.f8 3 5 . Jlf3 .il.e7 3 6 . h 4 W h i te h a s brought h i s king closer t o the center, expanded on the kingside and is ready to use his �+ Jl battery on the long di­ agonal if and when the opportunity pre­ sents itself. 36 .1l.f8 37.�e2 Jle7 38.'ltc1 'ltd7 39.'ltc2 'ltd8 40.h5 �g8 4 1 . h x g6 h x g6 4 2 . Jle4 f5 43. .11.g2 Jlf6 44.g5 Jl.x b2 45. 'ltx b2 •

•..

to break through on the queenside. 56 . . . .1l.c8 57.Ac2 j},d7 58.j},bl j},c8 59.j},a2 Jld7 60.e xf5 exf5 61 .Ag8 1-0 A splendidly conceived and executed plan by Andersson. Two points for 1 6.4Jd3!. (T4. 1 6) Wea k C o l or C o m p l e x : 14.�b4! j},d7 1 4 . . .Jlb7 1 5 .Jla6 Jlxa6 1 6.�xa6 �b6 1 7 . .§ fd l Jlf8 1 8.�a4 �bS 1 9 . � )( b 5 n b S 2 0 . 4Jd 5 ± . 15.'ltxd6 j},f8 16.'ltd3 a5 17.�d5 The ghost has returned to d5. 17 ... Ae6 17 . . . cxd5? 1 8.�)(d5 Jle6 1 9.Jlb5+ '!;e7 20:�1b7+ Jld7 2 1 ..§fdl +- . 18.E!b7 E!c8 19.E!dl 1-0 The deadly threat 4Jc7+ caused B lack 's resignation. Two points for 1 4.4Jb4!. Test 05

Even with the dark-squared bishops otT the board, the dark squares are ex­ tremely weak and there i s not much Black can do to cure this condition. 45 . . .'ltd7 46.'lte5 Centralizing the queen. 46 �f7 47.Af3 'ltd8 48.e4 'itd7 49. '�tal �g8 50. 'itf6 'itf7 5 1 . 'it x f7+ � x f7 5 2 . �e3 �e7 53.�d4 Jl.d7 54.�e5 1t is fitting that the final assault in the endgame is car­ ried out on the dark squares. 54 Ae8 55 .1l.e2 .il.d7 56.Jld3 White begins to bring the bishop to a square from which it will be able to threaten to at­ tack the g6-pawn. The only way B lack can defend against this is to allow White

(TS.Ol ) Prophylaxis: 18.a3! j},b7!? It would have been better to continue with the same plan, although after 18 . . . a5!? 19 ...1lf2 4Jf6 20.b4!? axb4 2l .a)(b4 .§)(al 2 2 . .§xal 4Je4 23.Jl)(e4 fxe4 24 . .§ a7! A)(c3 2 S .�xc3 .tl)(dS 26 . .§ )(d7 .tlxc3 27.4Je7+ '!;h8 28 . .§c7! +- , White is on top. (V. Mi khalevski). 19.b4?1 1 9.4Ja5! Aa6 2 0 . b4 w a s more pre c i s e . 1 9. . . �f6?1

••.

..•

•

B lack misses his chance: 1 9 . . ...1lxc3! 2 0 . � x c 3 4Jf6 = ( V. M i k ha l e v s k i ) .

1 97

The ChessC�fe Puzzle Book 2 20.�a51 �a6 21 .E!ab11 2 l .bxc5!?. 21 E!ae8 I f 2l ... c4!?, then 22.a4 bxa4 23.b5 4Jc5 24 .Axc5 dxcS 2 5 .4Jx b7 �xb7 2 6 . d 6 4Je4 2 7 . 4J x e 4 fx e4 28.�c2 ± . 22.� xb7 �xb7 23.bxc5 � x c5 24 . E! x b 5 � a 6 2 5 . .1l, x c5 dxc5 26.d6 26.fhc5!? could have also been considered. 26 � xa3 27.E!b7 �h8 2 8 . � h 1 E!dS 2 9 . E! d 1 c4 3 0 . � b 5 �c5 3 l . � a 5 1 a 6 ? 1 O r 3 1 . . . E! d7 3 2 . E! c7 ± . 3 2 . � x a 6 c3 33.E!c7 c2?1 34.E!fl l Covering the i m portant f2 -squ a re . 34 . . . �e3 35.E! xc2 �e4 36.�a71 White later converted his advantage. Three points for 18.a3, with the idea to follow up with b4, a typical way to increase the pressure on the queenside. ..•

2 3 . .llx e4 fx e4 2 4 . � e l ± . 1 9 . . . c6 20.�e6 c x d5 2 1 .c x d 5 2 1 . 4J x g7 'xg7 22.cxcl5 ± . 21 .1l,h8 22. �d3 a6 23.h3 �f6 24.a4?1 1-0 Felgaer s h o u l d have p l ayed 24 . A a 3 �bS 25.E!bdl ± . One point for 1 5 . .llg5! and the second for 17 . .llc l ! . ..•

..•

(T5.02) B r e a k i n g t h e B l oc k a d e : 3 3..1l,e71 To maneuver the bishop t o a better position: either d6 to break the lines of communication in Black's camp or f8 to infiltrate on h6. The tempting 33.�a6? is met by 33 . . . E!c7 34.Ad8?? Ac4 -+ trapping the queen ! (Erenburg in CBM 1 03 ); 33 .�d2, with the idea .lle 7, gets four points as wel l, otherwise only two points.; 33.e6 E! xe6 34 . .lle 5, with the plan to infiltrate with the queen, is also quite strong and gets three points. 33 ...f4 33 . . . .llc4 34.�d2 §d3 35.�g5 §xd4 36..lld6 E!c8 37:ifle7+ 'h6 38.e6 E!e4 39.f3 E! xe6 40.Af4+ +- . 34.�d2 f3 There is no good way to prevent W h i te from i n va d i ng on the dark squares. 35 ..1l,f8 �g8 36. �h6 E!c7 37.�xg6+ 1-0 (T5.03) Weaknesses: 15 . .1l.g51 .1l, xd5 16.exd5 h6 17 . .1l,cl l A very good decision. White 's bi shops w i l l g i ve B l ack headac h e s . 17 . . . E!f7 18.f4 �g4 19.E!b1 Better i s 1 9 . h3 lL:Jf6 20.lL:le6 lL:le4 21 .!2lxg7 �xg7 22.g4 �h7

(T5.04) Positional Exchange Sacrifice: 19 E! xe31 20.fxe3 �e7 20 . . . �e8!? 2 l .'f2!? E! xc3!? 22.E!xc3 .llx a4 23.E!c8! "i:lxc8 24."i:lxa4 4Jxd5 25 .Ag4 �d8 + ( We l l s i n CBM 66 extra ) . 2 1 . � a 2 E! xc 1 22.� xc1 .1l, x a41 2 3 . � x a4 �xe3+ 24.�h1 •..

24 . . . �e4? 24 . . . Axcl4! 2 5 . b5 Jl.a7 26.bxa6 !2le4 27.axb7 4Jc3 28. "i:Jh3 4::\ x cl l 2 9 ." 0" x cl l "t:Jb6 + . 2 5 . � f5? 25 .�e8+! 4Jf8 26.4Je6 fxe6 27.dxe6 4Jf2+ 28.'h2 �xe6 29."iflxe6+ !2lxe6 3 0 . § e l ( We l l s ) is better for White. 25 ... �f2+ 26.�h2 �e5+ 27.�g3 � e4 28. �b3 .1l.f2 29.E!d3 h 5 1 3 0. .1l, x h5 � ><e3 .1l,xe3 37.�g3 g6 38.�f3 .1l,d4 39.�e2 �g7 40.�e1 �f6 41.�d3 Af2 42.�f3 �f5 43.�e2 .1l,a7 0-1 Two points for 19 . . . E! xe3!. (TS.OS) Outpost, I m pro v i n g P i ece Placement: 27... �g31 28.b4 28.E!ac3

1 98

Solutions 4J e 2 ! is t h e tact i c a l j u st i fi c a t i o n 29. 4Jxc6+ ( 2 9 . f'! xc6 4:lxcl 3 0 . E! xc7 � x c7 3 l . � x a7 + �c8=) 2 9 . . . �a8 30.!'!3c2 4:lxcl 3 1 .4Jxa7 E! xc2 32.4Jb5+ �b7 33.4Jxd6+ �xd6 34.iii x c2 �e6 35.'�xcl �f5+=. 28 4)e4 29.ci!}al ••.

h6 3 0 . � c 2 g5 3 l . f x g 5 h x g 5 3 2 .§ b 3 .§ e 6 3 3 . � h 2 �f2 33 ... �b7!?. 34.�xf2 4) xf2 35.Elbc3 ci!}b7 and B lack had no problems as 36.b5 can be met by 36. . . c5. Ivanchuk even managed to win later. Two points for 27 . . . 4Jg3!.

E! d8 2 6 . � a 4 + �e7 27 . .\la3+ �e6 28.�g4+ f5 29.�c4+ �d7 30.�xf7+ �c6 3 1 .�e6+ ± . 19 .§ xa6 20. .1l,xa6 .§g8+ 2 0 . . . .\l x b 4 ? 2 l . Jlc4 E! f8 ( 2 l . . .�c7 2 2 . E! d l 0-0 23 .Jlh6 �h8 24 . �hl 4Jb6 2 5 . E! g l +- ) 2 2 .Jlh6 ± . ..•

2l.ci!}hl .§g4 A very creative defense!

(TS.06) Weak Color Complex, B ishop­

2 l . . .�c7? 22.E!dl 4Jb6 23 . .\lb5+ �e7 24 .�f3 �e6 25 .�h3+ f5 26 . .1ld3 ± . 22 .1l,e3 This j ust stops E! d4 . Other o p t i o n s i n c l u d e 2 2 . Jlb 5 E! x b4 (22 ... �c7?! 23.E!dl E!d4 24.E! xd4 exd4 25 ..\lf4 �c8 26.f3 .ll x b4 27.�xd4 Jle7 28.�g2 ± ) 23.E!dl E! xb5 24 .�xb5 ;t ; 22.E!dl E!d4 23.E! xd4 exd4 24.Jlb5 ;t .

Pair: 18. �d5!!

22

This centralization is a strong reinforce­ ment of White's pressure on the light squares. 18.Jlxa8 �xa8 1 9.�g4 gets one point.; 1 8.Jlc6 also gets one point. 18 . . . .§a7 1 8 . . . E! b8? 1 9 . E! d l E! g8+

The bishop must be taken, otherwise the attack crashes t h rough . 23 . . . �c7?

•

20.�h l �c7 2 1 .Jlc6 E!d8 22.E!xc3 +- . 19. .§xa6 After 19 . .1le3!? .\lxb4 20.E!b3 E! xb7 2 1 .�xb7, B lack can fortify his

bishop on b4, but White's attack con­ tinues by just taking it: 2l . . . a5 22.E! xb4 axb4 23.E!al 0-0 (23 . . . E!g8+ 24.�hl b3 25.cxb3 4Jb8 26.h3 c2 27.�h2 ± ) 24.E!dl ;t ; 1 9.E! xc3!? was very strong as we l l : 1 9 . . . .\l x b4 2 0 . E! c8 � x c8 (20 . . . -llx e l 2 1 .E! xd8+ �xd8 22 ..\lc6 ± ) 2 l . Axc8 .\l x e l 2 2 . .\l x d 7 + E! x d7 23.�a8+ E!d8 24.�xa6 E!dl 25.�a8+

•

•••

.§ x b4 23 .1l.b5 E{ xb51 •

24 ..\lc6 E!b8 25.E!dl E!d8 26.�b5 �e7 27 . .\l x d 7 f! x d 7 2 8 . !'! x d 7 + � x d 7 2 9 ..\lc5+ +- ; 23 . . . .\ld6? 2 4 . E! a l E! xb5 25.�xb5 ± . 24.� xb5 �aS+ 25.ci!}gl �e4 26.h3 26.E!al !? with the idea to

exchange queens was interesting, e.g. 26 . . . Jld6 ( 2 6 . . . �g4 + 2 7 . �£1 �f3 28.�a6 .lld 6 29.�a8+ ;t ) 27.�a4 ;t . 26... �g6+? 26. . . �xc2 was more tena­

cious, but White should win neverthe­ less: 27.�c6 .llb4 28.E!al ± . 27.ci!}h2 Jld6 27 . . . � x c 2 2 8 . �c6 Ab4 (28 ... Ah6 29.Ac5 �d8 30.E!al .ll£4+ 3 1 .�h l +- ) 29.E!al �e7 30.E!a7 �d3 3 l . �a4 �d6 3 2 . E! x d 7 + � x d7

1 99

The ChessC�fe Puzzle Book 2 33. 'i:Yxb4+ ± . 28. .§d1 flle7 29. �d5 1-0 Two points for 18. 'i:Yd5!!. (TS.07) Improv ing Piece Placement, Counterplay: 23 J}.c8 was called for. In the game, B lack played 23 . . . § feB?.

26... .§ce7 27. .§hd1 .§e2 28. .§3d2 .§2e4 Black has good compensation. One point for 23 . . . .llc8 and two more for 24.g4 f6!.

..•

(TS.OS) Weaknesses: 14 g51 To free the important central sq uare e5 for B lack 's d7-knight and to open lines against White's exposed king. 15.fxg5 1 5 . § a d l g x f4 1 6 . A x f4 {) e 5 'i' . 1 5 ... hxg5 16.Axg5 4:\e5 17.�f4 4:\ h 7 1 7 . . . {)fd7 !? 1 8 . Jl x e7 'it> x e7 1 9.{)d4 §cg8 20.Ae2 �c5 2 1 .§adl §h3 with very good compensation for the pawn . 18.J}.h6? 1 8.Jlxe7 "?f¥xe7 1 9 .Jlg2 {)f8 t. 18 .§g8 19 . .§ad1 .§g6 20.h3? 20.Ae2 {Jf6 2 1 .g5 {)g8 + . 20 .§f6-+ 21.�e3 4:\c4 22.�cl 4:\ x b2 23.J}.d2 4:\ xd1 24.�xd1 d5 25.e5 � xe5 26.4:\e2 Ad6 0-1 Two points for 1 4 . . . g5!. .•.

•..

..•

Now Black's bishop plays no real role. 2 4 . § c l .llc 6 2 5 . § g3 �a4 2 6 . '�£2! Black's king is feeling really uncomfort­ able now. 26 . . . §e8 27.£5 g5 28.§h3 £6 ( 28 . . . 'it>h7? 29 . '�g3 £6 3 0 . {)g4 +- ; 28 . . :�b5+ does not help: 29.'it>a l f6 30.c4! dxc4 3 1 .{)g4 §ee7 32.§ xh6 c3 33.§g6+ 'it>f8 34.§ xf6+ 'it>e8 35.§h6 and White is clearly better as 35 . . . §e2 can be met by 36.§e6+) 29.{Jg4 i£tb5+ 30.'it>a l ?? a capital error. ( 30 . '�b2 should win sooner or later, but the tech­ nical difficulties should not be under­ esti mated : 30 . . . § e 2 ! ( 3 0 . . . 'it>g7? 3 l . § x h 6 'i:Y d 3 + 3 2 . 'i:Y c 2 'i:Y b 5 + ( 3 2 . . . 'i:Y x c 2 + 33.§ xc2 §el+ 34.'it>b2 +- ) 33.'it>al §e2 34.§g6+ 'it>f8 35.'i:Yh3 +- ) 3 1 .'i:Yxb5 .ilxb5 32.{'\xf6+ 'it>g7 33.{)xd5 §d7 (33 . . . § £7 34 .£6+ 'it>h7 3 5 . § c 2 § e6) 34 . {) e 3 Ad3+ 35 .'it>al Ae4 36.g4 b5 and Black's ac­ tive defense is somewhat intact in both cases. ) 30 . . . §e2 0 - 1 . 24.g4 24.§g3? 'iti'h7 and the bishop will become very strong. 24 ... f61 The knight must be driven away from its mighty outpost. 25.4:\ xg6 .§e8 26.4:\h4 26.§g3 §e4.

(TS.09) Bishop-Pair: 3() Ad41 31.4:\f3 3 1 .§b8+ 'it>g7 32.§e8 {)e4 -+ ; 3 1 .'it>fl .llxf2 32. 'it>xf2 {)e4+ 33. 'it>g2 .llh 3+ -+ . 3 l . . . J}. x f2+ 3 2 . fl} x f2 4:\ d 3 + -+ 32 . . . ae4+ wins even quicker: 33.'it>g2 .llh 3+ -+ One point for 30 . . . .lld 4! and one for the assessment that B lack is completely winning. •••

(TS. l 0) Weaknesses: 20 ...e51 Direct pressure against e4 and c2 w i l l do. 20 ... d5 2 1 .exd5 ( 2 1 .e5 {)e4) 2 1 ... {)xd5 22.c4 is also better for Black and gets one point as well. 21.4:\e2?1 2 1 .{'\f3 d5 22.{)d2 d4 23.Ag5 Ah5 24.·;�H3 .llxfl 25.{'\xfl §e6 + . 21 Ab5 22.c4 Now instead of 22 ... �xc4?1 22 . . . Jlxc4 was even stronger: 23."{;i'c2 "{;i'c6 24.§bcl § ec8 25.{\gl Ab5 -+ . Two points for 20 . . . e5 2 1 .{\f3 d5 or 2 1 .{\e2 ..Q.b5 . •.•

(TS. l l ) Weaknesses: 14... .§fc81 was called for. In the game, B lack played

200

Solutions 14 . . . Axe5? Now White's knight will have a wonderful future.

22.c5 �c7 23 . ..1lxh7 :§ xb7 24.c6 ab6 25.'(;irxa6 �xc6 26.l2\c4 :§ h8 27.l2\xh6 :§ x h6 2 8 . � a 8 + ..lld8 2 9 . :§ d l +­ ( S a l o v ) ; 2 l . . . A x g 2? 2 2 . e x f6 ..llc6 2 3 . fx g7 +- . 22.c5 �c7 2 3 . jl x e5 dxe5 24.jl xb7 .§. xb7 25.c6 .£lb6 2 6 . � x a 6 � x c6 27 . .£J c4! .§.b8 28. .£1 x b6 0-0 29 .£lc4 �e4 30 .§.e3 �d5 31 .£j x e5 .§.fc8 32.�d3 1-0 Two points for 1 5.:§e3!. •

•

•

1 5 .dxe5 c6 1 6.l2\d6 ± f4 ( 1 6 . . . l2\f6? 1 7.l2\xf5 l2\g4 1 8. f! fdl �f7 1 9.�xg4 �xf5 20.�xf5 f! xf5 2 l .f4 +- ) 1 7.g4!? fxg3 1 8.hxg3 l2\f6 19.:§adl l2\d5 20.e4 Ob6 2 1 . � h 3 �e7 2 2 . :§ d 3 '.t'h8 2 3 . l'Hd l g5? ( 2 3 . . . :§ a h8 2 4 . f4 ± ) 24.:§ l d 2 g4 25.a4 :§ah8 26.a5 l2\a8 27.l2\c4 E!f7 28.�dl �g5 29.:§d8+ :§f8 30.f! xh8 :§ xb8 3 1 .:§d7 h5 32.l2\d6 'it'g8 33.l2\xh7 E! f8 34.l2\d8 �xeS 35.l2\xc6 �xe4 36.�d2 1 -0. 15 . .§.ac1 1 5.�e2 g6 � . 15 ... a6 16 . .£lc3 � ( Dautov in CBM 94) Two points for 1 4 . . . .!"!.fc8!. (T5. 1 2 ) Weaknesses: 15 . .§.e3! This original rook lift adds plenty of pres­ s u re to B l a c k ' s weak q u e e n s i d e . 15 ... .£jd7 1 5 . . . .\le7? runs into the typi­ cal : 16.:§h3 �c7 1 7.:§ xb8+ �xh8 18.e5 .llxg2 19.exf6 +- (Ftacnik in CBM 63). 16 . .§.b3 �a7 17 . .§.ba3 1 7 .:§ x b8+ l2\xh8 1 8.h4 ± was also quite strong. 17 jlb7 1 7 . . . l2\c5 1 8.l2lh3!? l2\xb3 ( 1 8 ... axe4 1 9.l2\d4 .llb7 20.Ae3 +- ) 1 9.:§ xh3 :§ xb3 20.�xh3 .lle7 2 1 .�a2 ± ( Ftac n i k i n CBM 63 ) . 18.b4 �b6 1 8 . . .Ae7 1 9.l2lh3 09.'(;ira4!?) 1 9 . . . '(;¥h6 20.Ae3 �c7 2 l .h5 ± . 19.�a4 Ae7 20.jlb2 jlf6?! This makes it easy, but White's advantage was quite comfort­ able already. 21.e5! j}_ xe5 2 1 . . .dxe5 ..•

(T5.13) Weak Color Complex: 24. .§.c6! 2 4 . e x f7+? �xf7 2 5 . E! c6 E! e7 gives Black good play.; 24.l2\d6?? just does not work: 24 . . . �xd6 25.e7 :§e8 26.:§c8 .§. xeS 2 7 . � x a 7 E! e8 -+ . 24 . . . f x e6 25 . .£lc5 The light squares in Black's camp are fatally weak. His major pieces have big problems making an impact, while White's forces reign supreme. 25 . . . �f7 25 . . . :§ f6 2 6 . a x e 6 �d7 27.:§ccl 'it'h7 28.E!cdl �f7 29 . .!"!.d6 ± . 2 6 . 4) x e 6 .§.e8 2 7 . �b3 �h8 27 ... .!"!.ee7? 28.:§c8+ 'it'h7 29.E!e3 +- . 28.g3 28.E!e3!?. 28 ... �f5 29 . .§.e2 .§.ae7 30. .§. x a6 Af6 31 ..§.e3 �h7 32. .§.f3 �e5 33 . .£Jf4 �b2 34. �d3J .§.e4 34 . . . E!g7 35 .0h5 +- . 35.�g2 �d4 36. � x b5 .§.8e7 1-0 Two points for 24.:§c6! fxe6 25 .l2\c5. (T5. 14) A Second Front: 29.b4! He seals the queenside so as to have a free hand on the k i ngside. Opening the queenside by 29.b3 is unclear because of 29 . . . :§ ed8 30.bxc4 dxc4 3 l .E! xh5 :§ xd4 32 .Ae3 :§ d 1 ! and gets only two points.; 29.l2\ce2 gets one point. 29 ...a4 29 . . . cx h3?! 3 0 . :§ xb3 :§ b7 3 l . :§ fb l :§ eb8 3 2 . ac e 2 � a 6 3 3 . l2ld3 l2\d7 34.l2\ef4 ± ; 29 . . . axb4?! 30.:§ xb4 :§ b7 3l .:§fbl ± ( Ribli in CBM 93). 30.g3 H Ubner plays the game very instruc­ t i ve ly. Study t h e rest carefu l l y : 3 0. . . Af7 31 .Ae3 .£le6 32.4) xe6

20 1

The ChessCafe Puzzle Book 2 .Q. xe6 33 . .Q.f4 '\tlh7 34.�e3 .Q.f7 35.§b2 .Q.e6 36.§g2 §f8 37.'\tlf2

The white king heads for the queens ide where it will serve a very useful func­ tion blockading the c4-pawn. It also al­ lows White to open the kingside with­ out worrying about the king being in d a nger. 37 . . . }3 ff7 38.'\tle2 h5 39.'\tld2 '\tlg8 40.}3cl '\tlf8 41.4)e2 �e8 42 . .Q.g5 j'tf8 43.4)f4 13g7 44 . .Q. h 6 §g8 45 . .Q. x f8 '\tl x f8 46.4)d3 White has no intention of ex­ changing his good knight for the bad black bishop. 46 ... 13h7 47.�g5 �e8 4 8 . 4) f4 'ltrf7 49. �f61 � x f6 50.exf6 .Q.d7 51.4)h3 13f7 52.4)g5 }3 x f6 5 3 . 4) h7+ '\tlg7 54 . 4) x f6 '\tl x f6 55.13e1 f!c8 56.13e5 .Q.e6 57.'\tle3 }3c6 58.}3f2 '\tlg7 59.§fl §d6 60.�e2 }3c6 6 1 .'\tld2 }3d6 62.�c3 }3b6 63.g41 Really "open­ ing" a second front. 63 ...fxg4 64.fxg4 hxg4 65.§g5 .Q.c8?1 66.}3xd5 Jl.f5 67.13e5 �h6 68.d5 '\tlh5 69.13h1 §f6 70. }3e8 g3 7 1 . 13e3 '\tlg4 72.}3g1 1-0 Four points for 29.b4!. (T5.1 5) Bishop-Pair: 18.'\tlc21 White's h 1 -rook should enter the attack, but first Marin forced the c3-bishop to make a dec i s i on . 1 8 . §. fl gets o n e p o i n t . 18 .h6 1 8 . . . �d4 19.t!bl e4 20.§.b7+ �g6 2 l .f4 h6 22 . .1l.e7 +- ( M arin in ..

Secrets ofA ttacking Chess).; 18 . . . .Q..b4 19.f4! (Marin) ( 1 9.t!bl is also strong.) 19 . . . h6 20.fxe5 hxg5 2 l . §. fl + �g6 22 . .1lxe6 +- . 19.'\tl xc3 hxg5 20.§e1 a5 21.}3 xe5 §a7 22.§dxe6 }3 xe6 2 3 . 13 x e 6 '\tlf8 24. §g6 4)d7 25.§ xg5 13c7 26.13f5+ 4)f6 27.§e5 f!c6 28.h4 4) d7 2 9 . 13f5+ 13f6 30.}3xf6+ gxf6 31 . .Q.e6 4)b6 32.f4 '\tle7 33.f5 '\tlf8 34.g4 '\tlg7 35.g5 1 -0 One point for 1 8.'i!rc2 and the sec­ ond for 18 . . . Jlb4 19.f4! or 19.§. b l . (T5. 1 6) Positional Exchange Sacrifice: 16.b31 A fine offer of the exchange. Not only is B lack's strong dark-squared bishop swapped, but the awkward po­ sition of the rook on b4 gives White the poss ibil ity of winning back the ex­ change with an overwhelming posi­ 16 . . . .Q. x a 1 advantage . tional 17.�xa1 �xd5 I f B lack tries to get h i s b i s hop i nto the game fi rst by 1 7 ... Jlb7?, White picks up the errant rook: 18.a3 § g4 1 9 . .Q..e2 t!g5 20.e4 4::ld7 2 l .f4 +- . 18.a3 f!g4 Black's task is not made easier by voluntari ly giv­ ing back the exchange at once. So, if 18 . . . §. x b 3 , W h i te i s o n top after 19.4::\ x b3 ( 1 9.Ae2?! §.d3 20 . .ilf3 'i1!d8 2 1 ..1lxa8 § xd2) 1 9 . . . �xb3 20.�e2 Jlb7 2 1 .0 -0 4::ld7 ( 2 1 ... a6? 22.t!dl 4::lc6 2 3 . t! d7 �c8 24 . t! c7 'i1ie6 2 5 . § xc6 � x c6 2 6 . .ilf3 +- ) 2 2 . t! b l 'i1ie6 23.�xb5 ± This variation illustrates a common positional theme: two bishops in an open position are very often more than enough compensation for the ex­ change. 19..Q.e2 4)c6 20 ..Q.f3 �e6 2 1 .j't x g4 � x g4 2 2.0-0 .Q.b7 An evaluation of the position shows that the material balance is equal, and a super­ ficial look might even lead to the con­ clusion that the bi shops of opposite color will eventually give B lack draw-

202

Solutions ing chances. However, the removal of the dark-squared bishop has left B lack very weak on the dark squares (and an inability for B lack to neutralize the ef­ fect of White's dark-squared bishop). The result is enough of an advantage for Petrosian to bring home the fu l l point in a n instructive manner.

23.f3 �e6 24.�e4 Eld8 2S.� xeS �xe3+ 26..Q.f2 �e7 27.§e1 �c7 28.h4 hS The black monarch's "drafty residence" is obvious. 29.�e4 �e7 30.�f6+ �f8 31.b4 .Q.c8 32.� xhS The final stage, with a tactical resolu­ t i o n . 32 . . . g x h S 3 3 . � h8+ � g8 34 . .Q.cS+ §d6 3 S . �eS 1 - 0 One point for 16.b3!. Test 06

(T6.01 ) A Second Front, Bad B ishop: 10 ... gSI 1 1 . � x f6+ Not 1 1 .4Jxg5? 4Jxd5! -+ . ll ... �xf6 12 .Q.g3 .Q.g4 The point. An endgame will shortly be reached that Black has correctly evalu­ ated as being in his favor. But it will not be on the kingside, where all the activity currently is taking place, but on the queenside where Black will dem­ onstrate h i s positional superi ority. 1 3 .h3 .Q. x f3 1 4. � x f3 � x f3 1 S.gxf3 f6+ Neither bishop is exactly real izing its potential scope yet, but the •

black bishop, as opposed to its coun­ terpart, will at least be able to support B lack's activity on the queenside, while the white bishop will be a mere specta­ tor. This is the position Capablanca un­ doubtedly saw when he played his tenth move.

16.�g2 aS?! 17.a4 �f7 18.Elh1?! White has better chances to hold out after o 1 8 . .!"! fb l 'it>e6 1 9 . 'iftfl .!"! fb8 2 0 . 'it>e 2 . 1 8 �e6 1 9 . h 4 Elfb8 20.hxgS hxgS 21.b3 c6 22.E{a2 bS 23.E!ha1 c41 The decisive break­ through. B lack is effectively playing with an extra piece on the queenside. 24.axb5 If 24 .dxc4, then 24 . . . bxc4 2 5 . bxc4 .!"! b4 26.'it>fl .!"! ab8 27 .'ifte2 .!"! xc4 28.'it'd3 .!"!d4+ 29.'it>e2 g4 -+ and Black wins. 24...cxb3 2S.cxb3 EtxbS 26.Eta4 Et x b3 27.d4 ElbS 28.E{c4 Elb4 29.§ xc6 §xd4 0-1 Two points, if you calculated until 1 2 . . . ..1lg4, after which it is clear that White's bishop will not see the light of the day again. •..

(T6.02) S i m p l i fi c at i o n : 6 . d x c S I 6 ..ilxf6?! ..llxf6 7.cxd5 (7.4Jxd5?! ..llg7 8.e3 4Jc6 and the typical Griinfeld pres­ sure against d4 gives Black good com­ p e n s ati o n . ) 7 . . :i;�b6 5i5 . 6 . . . �aS 7.cxdS �e4 I f 7 . . . 4Jxd5, White ob­ tains a big advantage by playing good, simple moves: 8.'ii1 x d5 ..llx c3+ 9 . ..1ld2

203

The ChessCafe Puzzle Book 2 The o n l y move to keep t h e edge.

e.g. 2 S . §. xg7 §. x eS 26.§. xf7+ 'it'xf7

9 ... ..1lxd2+ 10:i11 x d2 �xeS l l .§.cl t¥fS 1 2 . 4::l d 4 �d7 1 3 .�h6 After having

27:i:Ig6+ 'i!tf8 28.§.xe5 AdS 29.i;1xh6+ 'i!te8 ( 2 9 . . . 'l!tf7? 3f2 .£)f8 25.§b3 .£,d7 26.g4 b5? If Black tries to "hunker down" with 26 . . .'i!td8, then Capablanca would shift strategy, opening a second front with 27.h4 aS 28.f8 3 2 .£) x h7+ 'it>g8 33 . .£) f6+ 'it>f8 34. §e4 1 - 0 Two points for 20.e4 . ••.

one point. 22 ... §f6 If 22 . . . {Jxg3, then 23.§.xg3 tzJc7 24.t2fd3 ± ; 22 . . . '{;i<xe6 is not much help after 23 . ..1lxh6 ..ll x h6 24.§.xh6 4Jeg7 2 5 . i'21f3 ± . 23.Axf5? Better was 23.\:'1d3 t2fxe6 24 . .llxh6 dS 2S .Af4 ± . 23 ...gxf5 24 . .£,h5 §g6? 24 . . . §. xe6 was critical. 25.t}c2 .£,c7 2 6 . t} x f5 t} x e6 27.t}d3 .£, d 5 28.§g3 .£,e7 29.Aa3 §d8 30.h3 .£,f5? 31.§g4? White misses the di­ rect win with 3 1 . §. xg6 t2fxg6 32.4Jxg7 'tt' xg7 3 3 . §. x e S +- . 3 l . . . § x g4 32.hxg4 .£)d4?? Perhaps in time pres­ sure, Black drops a piece. He could put up a better defense by 32 . . . f7 3 3 . 4J x h6 + 'it>eH 3 4 . -tl fS +- ;

207

The ChessCafe Puzzle Book 2 27 . . . f!hd8 28.f:ld4 'l;lrd6 29.f:lxe6+ 'it'g8 30.f!d2 +- . 28.�d4 �d6 29.� xe6+ g7 33.ilh2+ e'5 34.f!d5 'it>f8 3 5 . '{;J x h 5 e x f4 3 6 . f! x f4 f! e 2 + 37.�h3 �d7+ 38.f!df5 f! xb2 39.'{;Jh8+ 'it>e7 40.'{;Jf6+ �f8 4 I .'{;Jxb2 f!e5 42.g4 f!e3+ 43.�h2 1 -0 . 29.hxg6 h x g6 30. .Q.d5 30.ilxg6? �c6+ 3 1 . �h2 exf4 3 2 . � h 5 f! e S 33 . .ilg4 f8 45.xe3 f4+ 30.'it>f3 l"!g8 -+ . 29.4)f3 Elg2 30.4)e1 Elg1 31 .E{e2 3 1 .fxg3 l"! xg3 32.l"!e2 f4 -+ .

3 l . .. �d6 3 2 . E{ c 1 Elh8 3 3 . 4) f3 E{xc1 34.A xcl Elh3 0- 1 One point for 25 . . . h4!.

3H . . . AdH 39 . .lle 6+ l"! xe6 ( 39 . . . 'it'h8? 4 0 . 1"! x h 6 + g x h 6 4 1 . tl! d 4 + i.tf6 4 2.'loi'x f6 # ; 39 . . . 'it>f8 4 0 . l"! fl + Af6 4 l .l"! xf6+ gxf6 42.g7+ +- ) 40.dxe6 .ilf6 4 l .c3 a xb3 42.tl!c4! tl!a5!? (42 . . . l"! b8 43.l"!h2 +- ) 43.e7+! 'it'h8 44.l"!e1 Ae5 45 .tl!c6 1 -0. 38.E{f2 38.gxh7+?! 'it'h8 39.tl!d2 .llf6 40.tl!cl tlth4 gives Black

a strong attack. 38 Af6 39.E{xf61 a x b3 40 . � x b3 E{eb8 4 I .Ab51 gxf6 � (Ftacnik in CBM 99) Two points for 37 . . . 1.l.d8!. ••.

(T8.04) Opening the Position: 12.a5 bxa5 }3.4)b3 E{b8 14.4) xa5 With­ out the important b6-pawn , B l ack's shield looks much less impressive. 14 j}_a8 1 5.�d2 �c7 1 5 . . . l"!e8 .•.

16 . .lla7 l"!c8 1 7 . .llf2 l"!h8 1 8.'it>h 1 acs 1 9.l"!fh1 l"! b4?! 20.{ld 1 tl!bH 2 l .Ae1 l"!a4 22.l"! xa4 {\xa4 23.b4 {lb6 24.{\c3 {lbd7 25. tlta2 ± N . Short-O.Cvitan, EU­ c h T Leon 2 0 0 I . 1 6 . E{fc 1 4) c 5 ? 1

(T8.03) Attack with Opposite-Colored Bishops: 37 Ad81 The bishop had to immediately take a greater part in the attack. I n the game, B l ack pl ayed .••

37 . . . h6?

1 6 . . . l"! fc8 1 7 . {\d U . 17.b41 4)cd7 17 . . . l"! xb4 18.{lb5 axb5 19.tl!xb4 bxc4 20.{\xc4 ± l . l bragimov-E.Ermenkov, Chania 1 993. 18.b51? 1 8.{ld5! exd5 1 9.cxd5 tl!d8 20.{lc6 tlte8 2 l .l"! xa6!?± ( S toh l in CBM I 03 ) . 18 . . . 4)c5 19.bxa6! 4) xa6? 1 9 . . . tl!b6 was called 38.Ah3! Now White's bishop is the first

in the attack w i th d e c i s i v e e ffect.

for. 20.4)b5 �d7 2 1 . 4) b3 Ab7 22.E{d1 §.fd8 23.Aa7 EtaS 24.�b6 j}_ x e4? E{db8 2 5 . 4) x d 6 ? 1

213

The ChessCafe Puzzle Book 2 o 25 . . . ..1lxd6 26.�xd6 "i£rxd6 27.§. xd6 4Je8! ( Stoh l ) 2 8 . §. d 2 ± . 26.4) x e4

4 9 . �c4 Aa7 50.�b5 'lte8+ 51 .Ac6 'ltd8 52.�c4 �e7

'l!txd2 27.4)exd2 f! x b6 28.c5 1-0 Two points for 1 2.a5. (T8.05) Outpost: 29.4)c2J Kramni k plans to transfer h i s knight t o the best square: b4, where it controls many im­ portant l ight squares. 29.§. d3? Jlh6 30.§.xd6 ..Q.xe3 3 l .fxe3 §.xd6 32 .�xd6 §.eB and Black has good compensation, e.g. 33 .�d5 �c7 34.§.fl <Jilg7 35 .c4 bxc4 36.bxc4 §.e7. 29 . . . §.c5 29 . . . §. bc8 30.§.d3 f5!? (30 . . . �c7? 3 1 .4Jh4 §. xc3 32.4Jxa6 +- ) 3 l .exf5 e4 32.§.d5! §. xc3 33 .4Je3 ± . 30.4)b4 §.bc8 3l .f!d3 Cit'h7 3 1 . . . "i£r x e 4 3 2 . 4J x a6 §. 5c6 33.4Jb4 §.c5 34.a6 ± . 32.4)d5 j},h6

3 3 . 'i!t d 1 §. fS 34 . 4) f6+ �g7 35.'l!tf3 b4? 35 . . . "i£re7! 36.4Jd5 �e6 37.4Jb4 ± . 36.cxb4 -lt x b4 37.4)d7 f5 38.4) x f8 � x f8 39. f! x d6 1-0 One point for 29.4Jc2!. (T8.06) Domination : 21.a4J Restricts Black's possibilities by taking away the important a4-square. 2 1 . 4Jf4?! .ll a4 gives Black's pieces more breathing spac e . 2 1 . . . 4) c8 2 2 . 4) f4 4) d 6 23.4)e2 §.eb8 24.§.fb 1 §. x b 1 + 2 5 . f! x b 1 4) b7 2 6 . 'lt d 2 'lte7 26 . . . a5?! 27 .4Jc3 4Jd6?! 28.e4! dxe4 29.d5 ± (Golod in CBM 96). 27.'i!tb4

4)d6 28.4)c3 f!e8 29.§.e1 'ltdS 30.Ah4 30. "i£rc5! ± was even better. 30...4)b7 31.Ag3 .£ih5 32.j},f2 a5 33.'�a3 4)f6 34.Ag3 4)h5 35.Jtf2 4)f6 36.Ag3 � Two points for 2 l .a4!. (T8.07) Attack with Opposite-Colored Bishops: 43.�fl Black is bound hand and foot, so White can activate the last pas s i v e u n i t : h i s k i n g . 43 . . . Aa7 44.�e2 Ab6 45.�d3 Aa7 46.�c4 'l!tc7+ 47.�b3 'lte7 48.g4 j},b6

After activating his king, White can now exchange queens. 53. �d7 'lte6+ 54 . 'lt x e6 f x e6 5 5 . f! x f8 � x f8 56.�b5 �e7 57.�a6 j},xf2 58.c4 �ds 59 .�b7 Ae1 60.b5 Af2 6 1 .b6 Ad4 62.Aa4 d5 63.cxd5 e x d5 64.e x d5 e4 6 5 .�c6 �c8 66.d6 e3 67.Ab5 Af6 6S.Jta6+ �b8 69.�d7 1-0 Two points for the plan to transfer White's king to the queenside. ( T 8 . 0 8 ) U n d e rm i n i n g : 22 . . . g4J 23.fxg4 23.f4 4Jf3 24.e5 (24 . .1lxf3? gxf3 + 2 5 . <Jil x f3 4Jxe4 -+ ) 24 . . . 4Je8 25 .<Jilf2 §.adS + . 23 ... hxg4 24.4)d2

�g7 2 5 .Af2 §.hSJ? 2 6 . Jtg l ? J 2 6. .llxd4 is critical, but B lack has very good compensation after 26 . . . cxd4 27.4Ja2 §.xh2 28.\t'fl ..Q.c5 29.h4 .lle7 3 0 . <Jil g l §. h 5 . 26 . . . §. h 5 2 7 . 4) f l

f! x d 1 28.§. xd1 b 5 29.axb5 axb5 30.4)d2 b4 31.4)cb1 4)fd7 32.�f2 f5 3 3 . §. e 1 4) f6 34.�e3 �f7 35.f!f1 Af8 36.§.d1 fxe4 37.4)c4 0-1 One point for 22 . . . g4! . (T8.09) Weak Points: 37.4)c6J It is d6 that is more vul nerable than e6, so White can bring pressure to bear with this curious-looking move. In the game,

214

Solutions White played 37.4"Jb5? Good thought, bad execution. 37 . . . 1::'l d7 38.1::'l f4+ 4"Jf6 39.1::'l d l ( White could still mismanage this position by al lowing the center pawns to go in motion with tempo, e.g., 39. 1::'l e3? e 5 4 0 . § ff3 e4 4 1 . 1::'l f4 g5 4 2 . h x g 5 hxg5 4 3 . 1::'l f5 'ifrg6 + ) 39 . . . 1::'l ed8 40.§fd4 Too little, too late.

B lack now relieves the pressure on d6 and is left w i th a tenable endgame. 40 . . . d5 4 1 .cxd5 4:'lxd5 4 2 .'ifrf3 'itre7 43.1::'l c l a6 44.4"Jc3 l::'l f8+ 45.�g2 4:'lxc3 46.1::'l xd7+ 'if?xd7 47.§ xc3 l::'l f5 48.'ifrfl h5 49.'itre2 a5 5 0 . 1::'l f3 'itrd6 5 1 . 1::'l c3 �-�. 37... .§d7 37 ... 1::'l c7 38.1::'l xe6! +- . 38. .§dl �g7 38 . . . 1::'l c8? 39.4"Je5+ +- .

39 . .§ed4 d5 40. c x d 5 e x d 5 4 1 . .§ x d 5 .§ x d 5 4 2 .§ x d 5 ± (Nuesken) All three points, i f you saw that 37.4"Jc6! wins a pawn. •

(T8.1 0) Opening the Position: 12.4)d5!1

.§ xd7 19. ttd5 Young Magnus applies pressure like a veteran. He made the difficult decision to give up the bishop­ pair, but that al lows him to tum the screws on B l ack's weak d6. 19 ... b5 20 .§c6 tt as 2 t . .§ fc l .§fd8 22.Ab6 .§es 23.ttf5 .§b7 24.Ad4 Af8 25 .§c8 .§b8 26 .§8c7 .§e7 27 . .§ x e7 A x e7 28 . .§c7 .§e8 29.ttd7 ttd8 30.ttc6 Af8 31 . .§a7 ttc8 32.ttd5 tte6 33.ttxe6 .§ xe6 34.f3 d5 35 . .§a8 .§c6 36.exd5 .§c7 37.Ac3 1-0 Two points for 1 2.4"Jd5!!. •

•

•

(T8. 1 1 ) Improving Piece Placement: 17.ttd51 w ith the idea to double on the e-file. "Centralization is the single most efficient attacking method in chess." ( Lautier in NIC Magazine 04/2005) 17...h6 I f Black snaps offthe b-pawn, W h i te i n vades w i th deadly e ffect: 1 7 . . ...1lxb2? 18.1::'l e7 l::'l f8 19.1::'l xd7 .ll x a1 20.1::'l xf7 l::'l xf7 2 1 .'ti1'xa8+ l::'l f8 22.'ti1'd5+ 'it'h8 23.d7 Jlf6 24.4"Je5 +- and wins.

1 8 . .§e4 .§adS 1 9 .§ael .§ x e4 20 . .§xe4 4)f8? •

1 2.f4, with the idea f4-f5, gets one point: 1 2 . . . 0-0 ( 1 2 . . . 4"Jc5 1 3.f5 e5 1 4 .4"Jb3 ;!; ) 1 3 . f5 e 5 1 4 . 4"J d 5 'ti1'd8 1 5 . 4"J b3 ;!; . 1 2 . . . exd5 13.cxd5 ttb8 1 3 . . . 'ti1'd8 1 4.4"Jc6 .llxc6 1 5.dxc6 4"Jc5 0 5 . . . 4"Je5? 16.c7 'ti1'd7 1 7.f4 4"Jeg4 18.Jlxb6 0-0 1 9 . e 5 +- ) 1 6. c7 'ti1'xc7 1 7 . e 5 dxe5 1 8.Axa8 0-0 1 9 . .1lg2 ± ; 13 . . . 4"Jc5 1 4.b4 0-0 1 5 .bxc5 bxc5 1 6.4:'lf5 ± . 14.4)c6

A x c6 1 5 .d x c6 .§a7 1 6 . c x d7+ .£l x d7 1 7.Ah3 ± 0-0 1 8 . j}, x d7

The stage is now set for the decisive breakthrough. 20 . . .'ti1'c8 was called for. 2 1 . j}, x h6! g x h6 2 2 . .§g4+ Ag7 23 .£l e 5 4) e6 24.4) x f7 tte2 25.4) xh6+?1 It was not necessary to get this tricky. The simple 25.1::'l e4 'ti1'xe4 •

26.'ti1'xe4 'itrxf7 27.'ti1'b7+ 'itrf6 28.'ti1'e7+

215

The ChessCafe Puzzle Book 2 'i!te5 29.f4+ 'iftd5 30.f5 ± wins easi ly.

25 ... h7 26 . .§e4 .§ xd6 27.�f5+ h8 28.4)f7+ g8 29.h4 �d1 + 29 . . . �xe4!?. 30.h2 .§d7? The bet­ ter 30 . . . 4:lf8 loses to 3 1 .4:lxd6 �xd6+ 3 2 . g 3 Jl x h 2 33 . .§ f4 ± . 3 1 . 4) h 6+ .Q. x h6 32.� xe6+ h7 33.�f5+ 1-0 Three points for �d5 .

camp, and it is not obvious how White is going to break through. 20...0-0-0 Rather than "leading with his chin" by castling kingside, Black chooses the queenside, which is rather "drafty." 2 1 . .§cf2 .Q.b5 2 2 . h 1 .§ he8 23 ..Q.f3 �d7 24. .§d2

(T8. 1 2) Improv ing Piece Placement: 14....Q.d81 The more "normal-looking" 14 . . . Af8? fails to 1 5 .fxe6 fxe6 1 6.Ah3 4:lc5 1 7 . h4 4:l c x e 4 1 8 . 4:l x e 4 4:l x e 4 19.4:lxe6 ± ; Also, rush ing forward with 1 4 . . . e 5 ? is met by 1 5 . 4:ld 5 '0-d8 16.4:lc2 ;!; ; The immediate 1 4 ... 4:lf8 gets

two points. 1 5 .fxe6 fxe6 16 . .Q.h3 The point of moving the bishop to d8. The knight defends e6 from f8, from which it cannot be moved or exchanged. 16 4)f8 17. .Q.f2 4)6d7=i= 18.b4?1 White, who appears to have more space, rushes forward. 18 ... .Q.f6 19.4)ce2 .§ac8 20. �b3 h8 Black has slowly but surely improved his position and now has a slight edge. 21 .�e3 4)e5 22.4)f4 �f7 23. �e2 .Q.g5 24 ..Q.e3 .Q.xe4 The beginning of a series of ex­ changes increasing Black's advantage. 25.4)fxe6 4) x e6 26 . .Q. xe6 .§ x e6 27 . .Q. x g 5 N o w B l ack p l ayed 27 ... .Q.a8?1 and later w o n . But 27 ... Ad3 is even better: 28.�f2 �xf2+ •.•

29.'it'xf2 4:lg4+ 30.'it'gl .§xel + 3 l . .§ xel h6 -+ . Four points for 14 . . . Jld8.

(T8 . 1 3) A Second Front: 14 . .§c11 Threatening h2-h4 with deadly effect. 14 ... c4 15.b4 .Q.b6 16.4) xb6 4) xb6 17.�d4 17.a4 a5 1 8.h5 Jlh7 1 9 :�1d4 4:ld7 is also good for White.; 17.Jld4!? ± is even better. 17 ... 4) a41? 18 . .§c2 .Q.d7 19 .Q.d1 g6 20.g4 White seizes more space on the kingside, but there are no apparent weaknesses in Black's •

With castling on opposite wings, White has to be careful about opening up the position on the kingside. White's next few moves are des igned to prevent B l a c k 's c o u n terplay. 24 �c7 25 ..Q.g2 .Q.c6 26. .§f3 .§h8 27..§h3 h5 28.gxh5 gxh5 29 . .Q.f2 .§dg8 30 . .Q.f3 .§h6 31 . .§c2 Not 3 l . .§ xh5? .••

.§ x h 5 32 . .>1x h 5 4:lxc3!= ( 3 3 �xc3?? d4+) . 31 ... f6 Black is trying to gain

entry points into White's position. The problem is that looks are deceiving Black not only has no good way to in­ vade, but the weakness of his queens ide will soon tell, particularly along the dark s q u a re s . 3 2 . e x f6 �h7 33 . .§e2 �b1+ Or 33 . . . �d3 3 4 . � x d3 cxd3 3 5 . .§ xe6 Ad7 36 . .§ x a6 +- . 34 . .§e1 �f5 35 ..§g3 .§xg3 36.hxg3 .§ xf6 l f 36 . . . h4, then 37.g4 '{;ixf6 38.g5 �xd4 39.Axd4 +- . 37.g2 h4 38 . .§e51 Setting the stage for switching activity to the second front: the queenside . Fritz's suggestion 38.Ag4 is interesting, but it also brings certain risks. After 38 . . . �xg4 39.�xf6 d4+ 40.'it'gl AdS,

216

Solutions it is difficult for White to find a win. 38 ... �d3 39.�h5 �f8 39 . . . �xd4 40 ..ilxd4 is an easily won endgame for White. 40.�e5 Preparing for the final i n v a s i o n a l o n g t h e dark s q u a res . 40 �e8 41.�xh4 4) xc3 42.�d6 Cit' b7 Or 4 2 . . . .ilh7 4 3 . l"! h8 l"! x h8 ••.

44.�xe6+ 'it'b8 (44 . . . 'it'c7 4 5 . Ab6+ 'it>b8 4 6 . � e 5 + +- ) 4 5 . �e 5 + 'it>c8 46 . .ilg4+ 'it'd8 47 . Ab6 # . 43. �c5

Cit'c7 44. �b6+ Cit'd7 45. �a7+ Cit'c8 46.�h7 1-0 Two points for 1 4.l"!bl, with the idea h4. (T8. 1 4) Positional Exchange Sacrifice: 27.�e61!

35 .�xd6 l"!e8. 27 4)b6 If 27 . . . 1"l.b4, then 28.b3 4Jb6 29.�e3 .f'lxc4 30.hxc4 l"! x c4? 3 l . l"! x d7 +- ; Or 27 . . . 'it'h8 .•.

28.4Je4 4:lh6 29 . .ilxf6
24 . . . ..Q.. xc6 2 '5 . d x c6 b x c 3 2 6 . /"! cl ') ( 26 . iii' xc3? i s met by 2 6 . . : � b4 ) 26 . . .'�Yxc6 ( 26 . . . �e3? 27./"!b')+ �c7 28. l"!b7+ '
223

The ChessCafe Puzzle Book 2 'it'e8 3 l .f6 gxf6 32.Jlg6 +- ) 27.l"lbS+ � x b 5 2 8 . a x b S d5 2 9 . h x c 3 d x e 4 30.�xe4 ± . 24.c xb4 a x b4 25.E!e1

Af4 26.Ad3 'it'a8?1 27.a5 t\'a7 28.E;!c7 t\'b8 29.E!xf7 t\'c8 30.Ab5 E!hf8 3 l . E! x g7 E! x f5 3 2 .a61 e4 33.a x b7+ t\' x b7 34.E;! x b7 e x f3 35.Ac6 1-0 One point for 23.c3! and two more if you spotted 23 . . . l"l c 8 24.l"lc6!!.

(T1 0.06) I mproving Piece Placement: 16. t\'c41 Wells plans to bring the queen into his attack on the kingside. This is very unpleasant for B lack, as his king lacks defenders. 16... .£)e7 16 . . . l"l fe8? 1 7.�g4 Jlf8 1 8.4:Jg5 l"ld7 1 9.�fS g6 2 0 . �f6 +- ( H u z m a n i n CBM 6 6 ) .

1 7 . A x b7 t\' x b7 1 8 . t\'g4 .£) g6 19.h41 t\'d7 1 9 . . . l"l fe8? 20.hS l"le4 2 l .�fS 4:Jf8 2 2 .Jlxg7! +- ( Huzman) . 20 .t\' x d7 E;! x d7 2 l . h 5 .£) e7 22.E!d21? f6 23.E!ad1 .£)c8 24.h6 E!dd8 2 5 . h x g7 'it' x g7 26 .e4 2 6 . 4:J h 4 ! ? . 26 'it'f7 27.e5 Ae71 28.exf6 Axf6?1 28 . . . l":l xd2 29.l":l xd2 .ilxf6 3 0 . l"l d 7 + ± . 29 . .£le5+ 'it'e6? 29 . . . 'it'g7 3 0 . l"l d7 + ± . 30 .£) d 7 +­ A x c3 3 1 . .£) x f8+ E! x f8 3 2 .bxc3 E!f4 33.E!d8 .£)e7 34.E;!e1 + 1-0 Two points for 1 6.�c4 ! .

20.Ah7+ 'it'h8 2 t .Af51 E;! x e 1 + 2 2 . E;! x e 1 g6 2 3 . A x d7 g x h 5 24 . .£) x f7+ 'it'g7 2 5 . Ae6 E!e8 26.Ax h6+ 'it'g6 27.A xf8 1-0 One point for 1 S.e4! and the second for 1 5 . . . dxe4 1 6.dS!.

( T 1 0.08) Domi nation, Weaknesses : 17.E!xa81 Adams used his fine posi­ tional sense and played for domination. This gets three points. 17.b4 gets two points . ; 1 7 . l"l a c 1 gets two points . ; 1 7 . Jl x h 5 gets o n l y o n e p o i n t . 1 7 Axa8 1 7 . . . l":l xa8?! 1 8.JlxhS 4:Jc5 •.•

1 9.�h4 Jlf8 20.l":l c l ! .£Jcxe4 2 l ."itfxe7 Jlxe7 22 .4:Jxe4 Axe4 23 . .£lxe5 ± ( Roiz in CBM 8 7 ) . 18.t\'a5 1 8 . l"l a 1 !? b4 1 9.l"la7 ± is also very strong. 18 b4 19.E!c1 .£)e8 20.Ad2± E!b8 20 . . . h3? 2 1 . Jlb4 "itff6 2 2 . Jl b 5 +- ( R o i z ) . .•.

21.Ab5 .£ldf6 22.A xb4

•.•

•

(T1 0.07) Opening the Position: 15.e41 This gets one point. 1 5.�c2 e.g. 1 5 . . . h6 1 6 . 4:Jf3 "itfe6 1 7 . 4:J e S . 1 5 . . . d x e4 1 5 . . . h6?! 1 6.4:Jxf7 'it'xf7 1 7.e5 gives White wonderful compensation. 16.d51 This gets another point. 16 ... Af8? 1 6 . . . �f5 1 7 . "itfd4 l"l a d8 0 7 . . . h6? 1 8 . 4:Jg x e4 LZl x d S 1 9 . 4:J x d 5 Jl x d S 20.4:Jd6 Axd6 2 1 .JlxdS Jlxf4 22.Jlxa8 l":l x a8 2 3 . � x f4 +- ) 1 8 . �xc4 ± . 17 ..£)cxe41 .£) xe4 1 7 . . . .£Jxd5? 18.-ttJh S �f5 19 ..£Jf6+! +- . 18.jlxe4 h6 1 8 . . . g6 19.d6 �d7 20.l":l xc4 +- . 19.t\'h5 t\'d7

As they say, White has the pawn and the compensation. 22 t\'b7 23.Axe8 .£) x e8 24.E!c4 f6 25 .£)d21? t\'d7 26 . .£) gf1 Ab7 27.Aa3 EtaS 28.t\'c3 E!d8 29. .£lb3 t\'f7 30. .£)c5 Aa8 3 1 ..£le3 .£)d6 32.t\'a5 E!c8 33.E!b4 f5?1 34. t\'a61 E!d8 35. t\'b6 Af6 36. E!a4 .£)c8 37.t\'a6 .£)d6 38.t\'b6 .£)c8 39.t\'a6 .£)d6 40.exf5 gxf5 41 . .£)d3 Ab7 42.t\'b6 .£)e4 43 . .£) xe51 E!d1+ 44 . .£) x d1 AxeS 1-0

224

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•

Solutions (T1 0.09) Positional Exchange Sacri­ fice: 28... .§xd6J In the game, Black p l ayed 28 . . . 4::l e 4?? 2 9 . f! x b7 i1i< x b7

�e6 3 2 .b4 f3 'it>g8 35.4::ld6 f! fl + 36.'it'e2 f! xf4 37.4::\ x e4 f! x e4 + 38. 'it>f2 f! x c4 3 9 . f! g3 f! xa4 4 0 . f! c3 f! a 2 + 4 l . 'it> g l 'it>h8 1 - 0 .

(T l O. l l ) Weaknesses, Bad B i shop: 19.�d2! The knight is transferred to c5 via b3 or e4, when Black's l ight­ squared bishop becomes bad. 1 9.Jld3 gets one point. 19 a4 20.Af3 .§a6 21.�e4 Ae7 22.a3 .§a7 23.Ab41 This exchange increases White's con­ trol over the dark squares. A typical technique. 23 ... Jl_xb4 24.axb4 �b6 25.�c5 Aa8 26 .§a1 x g 2 f! d7 2 4 . i1i'f3 4::\ d 5 25.4::\ x e7+ f! xe7 26.Jld6 ± . 17.Ad21 0-0 17 . . . d5 1 8.Jlxa5 �h8 1 9.exd5 Jlxd5 20 . ..1lc3 ± (Avrukh in CBM 67). .•.

26 �c71 This knight real l y had a great career! 27.-'td2? 27.Jlh2 .\lxh2 •..

2 8 . f! x d 8 + f! x d8 2 9 . f! x h 2 4::\ e6 + .

27 . . . Jl_ x e 5 1 28 .§ x d8+ .§ x d8 29.Aa5 Jl.d6 30. .§c1 .§d7 31 . .§d1 •

18.Jl_xa5 t\'b8 19.Ac3 d5 20.exd5 Axd5 21 .Axd5 � xd5 22.Ae5 ± and White went on to win. Four points,

225

The ChessC�(e Puzzle Book 2 ifyou calculated until 16.
(T l 1 .02) Simpli fication : 16.jlb41? 1 6 . .:£\c3 gets one p o i n t . 1 6 . . . �f6 16 . . . cS 1 7 .dxcS bxcS 18 . .ll e l �e7 1 9 . LL'lc 3 ;!; ( F tac n i k in CBM 93 ) ; 1 6 . . . Jlxb4 17.axb4 �d7 1 8 . .:£\f4 §. fe8 1 9.Jlh3 fS 20.LL'ld3 ;!; . 17. .£lc3 .£l xc3

18. �xc3 c6 19.A.xd6 �xd6 20.b4 §.c7 21.a4 2 1 .hS!?. 21 ... jlc8 22.a5

Black wants to create attacking chances, but in reality only weakens himself. 33.h51 �f3 34.�d3 Ci!lh8 34 . . . �xhS 3S .�fS �g6 36.�xg6+ fxg6 37.§.d7 ± .

35.�a6 Ci!lg7?1 3 S. . .�xhS 36.§.h7 ± . 36.b51 c5? 36 . . . �f6 37. bxc6 §. xc6 38.§. xf7+ 'it>xf7 39.�a7+ ± . 37.dxc5 bxc5 38. �g6+ 1-0 Two points for 1 6.Jlh4!?.

(Tl 1 .03) Outpost : 13.Jlxf61 jl xf6 1 3 . . . gxf6 1 4 . .:£\xd7 �xd7 l S .dS §.ac8 1 6 .ilb3 t. 14 . .£)e4 jl x e5 1 4 . . . Jle7 l S .LLlcS JlxcS 1 6 . dxc'5 LLld5 1 7 . b4 ± (Huzman i n CBM 1 06). 15.dxe5 Ac6

16 . .£)d6± a5 17.§.a3 �e7 18.§.g3 Ci!lh8 19.f4 f5 20.b3 §.g8 21.�f2 g6 2 2 . §.g5 §.g7 2 3 . �h4 Ad5 2 4 . � h 6 Jl x c4 2 5 . b x c 4 .£l d3 26.§.g3 .£lc5 27.§.b1 §.d8 28.h4? 28.§.dl ± . For the rest see T I 0.09. Two points for 1 3.Jlxf6!. (Tl l .04) Weak Color Complex: 17.e61 This gets one point. 1 7 . .:£\xd6 exd6 1 8.§. xd6 §.c7 1 9.�d2 §.e7 gives White compensation, but the game continua-

227

The ChessCafe Puzzle Book 2 tion is much better. ; The prophylactic 1 7.�4d3 also gets one point. 17 fxe6 1 8. � egS � f8 1 8 . . . e5 1 9 . fx e 5 ±

(Tl l .06) I mproving Piece Placement: 28... �e81 I nvites everyone to the party and plans to take away fl ight squares.

.:tl x e S ? 2 0 . 4J x e 5 Jl. x e S 2 1 . � f3 +- .

28 . . . h6? 29.�d2 �hl + 30.'it>e2 �xal 3 l . � xg3 hxgS 32.�xg5 '{;:1d4 33.e5 is

••.

1 9 . � x e6 t;td7 20.� x g7 � x g7 21 .�e4 ± �cS 22.�e1 e6 23.�f2 �dS 24.�c 1 t;tc7 2 S . � g S e S 2 6 . f x e S d x e S ? I 27 . �f1 t;te7

28.t;tf7+? Morozev ich could have won with the attractive 28.�h4! 'it>g8 (28 . . . � ed8 29.c4! bxc4 30.m7+ +- ) 2 9 . � f7 �cS ( 29 . . . � ed8 3 0 . b4 ! +- ) 30 . � x f8+

'i!f x f8

3 1 . 4J x h 7 + ! +­

(Erenburg in CBM 98). Two points for 17.e6! fxe6 1 8.4Jeg5.

(Tl 1 .05) I mproving Piece Placement: 2 1 . �e71 2 2 . � g4 2 2 . � e 2 �e8 .•

23.�xe8+ � bxe8 24.�cel 4Jf5 2S.a4 hS t. 22 Jl. x c 3 2 3 . b x c 3 � e8 •••

24.�d1 24 .�xe8+ � bxe8 2S.� xe7 � xe7 26.c4 �e2 27.'it>gl Ae4 28.-ilfl � a 2 2 9 . � c 3 .§. a l 3 0 . 4Jf2 cS + .

2 4 � x e 1 2 S . t;t x e 1 � a4 26.c4 �xa3 27.cS �e8? 27 . . . 4Je4 28.4Je5 •. .

(28.�c4 �e8 29.Axe4 �a2+ 30.'it>gl �xc4 3 l . A x h 7 + 'it>f8! +) 28 . . . � e8 29 . � a l

�b3 + .

28.c x d6 � x e 1 29.� x e 1 Jl.fS 30. �e8+ �h7 31 .dxc7 hS 32.�eS h41 and the game was later drawn. One point for 2 l . . . .§.e7! .

of course better for B lack, but not as c l ear as the game c o n t i n u a t i o n . ; 2 8. . . �c8 29.'{;:1d2 '{;:1hl + 30.�e2 �hS gets o n e p o i n t . 2 9 . � a 2 2 9 . Jl.e 3 .§.d8 -+ ; 29.�d2 � h l + 30.'it>e2 � xe4+ 3 1 . � e 3 '{;:1 h 5 + 3 2 . 'it>f l '{;:1 x g 5 -+ ; 29 . .§. c l �h l + 30.'it>e2 � xe4+ 3 l .'it>d2 (3l .�e3 �g2 # ) 3 1 . . .'{;:1g2+ -+ ; 29.�bl � x e4 30 . � f8 + ( 3 0 . � xg3 '{;:1xg3 -+ ) 3 0 . . . 'it> x f8 3 l . �f3 + 'it>g8 3 2 . � x e 4 �f2 # . 2 9. . .t;th1 + Overlooking a mate

in four. 29 . . . Jl.xd3+! 30.�xd3 (30.�xd3 �hl + 3 l .'it>e2 �g2+ 32.'it>e3 � xe4 # ) 3 0 . . . � h l + 3 l .'it>e2 �e l # . 30.�e2 �xe4+ 31.�d2 3 l .Ae3 �g2+ 32.§f2 �xf2 # . 3 1 . t;tg2+ 32.�c1 32 .4Jf2 � d4 + -+ . 3 2 t;t x a 2 3 3 . � x g3 33.�f8+ 'i!fxf8 34.�f3+ Jl.f4+ 35.Axf4 �a l + 36.'it>d2 �c3+ -+ . 33 ... t;ta1+ .•

• . .

34.�c2 t;tc3+ 3S.�b1 �d4 0-1 Two points for 28 ... �e8!. (Tl l .07) Weak Color Complex: 12.Ah6 Jl.f6? 1 2 . . . g6 is relatively best. 13.eSI dxeS 13 . . .Jl.xe5 1 4 . � xe5 +- . 14.�e4 White's pressure on the dark squares decides the issue. 14 �h8 14 . . . �a7 .•.

l S.�adl �d7 1 6 . .§. xd7 Jl.xd7 1 7 . .§.dl 'it>h8 1 8 . � xd7 +- . 1 S . �ad1 �e7

16.Jl.e3 Elg8 17.Jl.cS t;te8 18.�d6 t;tf8 1 9 . t;t h S g6 2 0 . t;t f3 t;tg7 21. t;txc6 1-0 Three points for 1 2.Jl.h6 Jl.f6 1 3.e5!.

(T l l .08) Simplificati on: 16. � x dSI exdS 16 . . . 4Jxd5 1 7.�c6 Jl.a6 1 8.Axd5 �xdS 1 9 . � x d 5 exdS 20 . .§. c7 � fc8 2 l ..§.ce7 .§.c2 22.4Jg5 ± . 17.Jl.d3 �fS 1 7 . . . Jl.f5 1 8 .�c7 ± . 1 8 . t;tc7 �d6 19.�e7 Jl.g4 1 9 ... Jl.f5? 20.Jl.xf5 .:tlxfS

228

Solutions 2 l .E!d7 E! c8 22.E! xd8 E! xc7 23.E! xc7 E! x d8 2 4 . E! x a 7 E! c8 2 5 . g4 + .

21 . . .1"! 7e6 + . 20. .£j xe4?1 20.E!e2 E!d4 2 1 .�h5 t'th4 22 .�h3 was more tena­

20 . 'li\' x d8 ! U x d8 2 1 . .£i e 5 j}_e6 22. E{cc7? 2 2.'�i'fl 'it'f6 2 3 . E! ec7 ± . 22 E{ac8 23.§xa7 §cl+ 24.Afl .£i b 5 ? 24 . . . 'i!i'f6 ! 2 5 . E! e c7 E! b l = (M ikhalevski in CBM 1 0 1 ). 25 . .£l x f71 E{e8 26 . .£jd8+ E{ x e7 27.§ x e7+ fl E!d4 23.E!a4 t. 20.b3

cxb3 21.'li\' xc6 bxc6 22.cxb3 j}_xb3 23. x e 3 4:Jc5 +

23 . . . Ab4

24 . A x a 6

-

.

Axa5

=

24 . . . E!a8? 25 .4:Jb6 E! xa6 26.4:Jxd7 E! xa5 27.E!hl ± Two points for 18 . . . c4! .

( T l l . l O) O u t p o s t : 1 8 . . . .£je41 + 19.Axe7 'li\' xe7 19 . . . E! xe7!? 20.4:Jxe4 E! b x e 4 2 1 . l"! d l ( 2 1 . l"! x e 4 d x e 4 + )

2 5 . 'li\' d l .£l e4 2 6 . 'li\'d3 §ce8 27.Act 'li\'f6 28.Ae3 Ac5 29.Etb3 Now Black should have played 29 . . . h4! 30.g4 Jlxd4 3 l..ll.x d4 �f4+ 32.'it>gl 4:Jc5 33.Jlxc5 dxc5 34.d6 E!el + . Two points for 20 . . . �g6!.

(T l l . l 2) Opening the Position: 24.f41 This opens the position for Wh ite's heavy forces, which stops Black ambi­ tions on the kingside, while his weak­ nesses on the queenside remain. 24.'it>hl gets one point.; 24.E!d3 gets one point. 24 ... exf4 25.e5 dxe5 26.Axe5 'li\'c6 27 . § x f4 E{ x f4 28.A x f4 E{e6 29.Ae3 h6 30.b3 §e4 31 .h3 §e6 32.§d2 e2!. (Tl l . I S) I mproving Piece Placement: 24.4)bl! The knight had no duties on c3, so Karpov directs it to a better cir­ cuit immedi ately. 2 4 . § e 2 gets one point.; 24.4Ja2 gets one point.; 24 . .Q..c5 gets one point.; 24.4Je2 gets one point.; 24.4:\dl gets one point.; 24.§fd l gets o n e p o i n t . 24 . . . �b7 2 4 . . . § x d 2 25 .4Jxd2 �d7 26.4Jf3 .llf6 27.§f2 ± .

25.�h2 �g7 26.c3 4)a6 27.Ele2 E{f8? Too passive. 27 . . . § d6 was called

230

Solutions for, when one possible line runs 28.4:ld2 Jld8 29.4:\f3 f6 30.f!d2 f! xd2 3 1 .4:\xd2 .ll b 6 32 . .ll x b6 � x h6 3 3 ." �e6 f! f8 34.4:lc4 �c7 35.b4 axb4 36.cxb4 ± , as 36 . . . 4:l x h4? is met by 37 . f! d 1 f! d8 38.4:ld6 +- . 28.4)d2 Jl,d8 29.4)f3 f6 3 0 . Et d 2 Jl.e7 3 1 . �e6 Et ad8 3 2 . Et x d8 Jl, x d8 3 3 . Et d 1 4) b8 34.Jl.c5 Eth8 35.Et xd8 1 -0 Three points for 24.4:lb 1 ! . (T i l . l 6) Opening the Position: 14.d51 exd5 15.Jl.g5 4)e4 15 . . .g6? 1 6.f! xe7 4:l x e7 ( 1 6 . . . �xe7? 1 7 . 4:\ x dS +- ) 17 . .llxf6 ± . 16.4) xe4 dxe4 17.� xe4 g6 18:l;th4 h5 18 . . . .llxg5 1 9.4:\xgS h5 20 . .llxg6 ( 20 . .llh 3!? +- is even stron­ ger.) 20 . . . fxg6 2 l .�c4+ �g7 22:�f7+ �h6 2 3 . � x b7 � x g 5 2 4 ." � x c 6 ±

J . Demarre-G.Chaumont, Paris 1 99 1 . ; 1 8 . . . t1c7 1 9 . .ll b 3 .ll d 6 2 0 . .ll f6 h 5 2 l .�g5 �h7 22 . .llc 2 1 -0, G. Dizdar­

39 . Et x b5 Et d t + 40. ct}f2 Etc1 41.Etb6+ ct;h7 42.g4 Eth1 43.h3 Ad5 44.Etd6 Etd1 45.Etd7+ ct;gs 4 6 . c:Je3 Ab3 47. Etg7+ ct;f8 48. Etg6 Ac2 49 . Et x h 6 Etd3+ 50.ct}e2 Etd5 51.h4 gxh4 52.Etxh4 ct;f7 53.f4 Adt+ 54.ct;e3 c:Jg6 55.g5 Ah5 56.Af6 Etc5 57.ct;d4 Etb5 58.ct;e4 Ad1 59.f5+ ctif7 60.Jle5 Ac2+ 6 I . ct;f4 1-0 One point for 3 1 .f!h7! and one for the as­ sessment that Wh ite is clearly better. (Tl 2.02) Blockade: 43.ct;b211 To es­ tablish a blockade. In the game, White p l ay e d 4 3 . 4:la 3 ? c 4 + 4 4 . �c 3 d4+ 4 5 .�c2 .llc 5 46.f! xe6+ Y2-Y2 ; 43.a6 d4+ 44.�b2 c4 45.4:la3 gets two points. 43 c4 43 . . . d4 44.4:la3. 44.ct;c3 Jlf2 .•.

45.Etfl Ac5 46.4)d4 when he has very good winning chances. Four points for 43.�h2!!.

E.Dizdarevic, Sarajevo 1 988. 19.Ab3 �c7 20. �e4 ct}g7 21.Jl,xf711 ct}xf7 22.Jl,h6 �d7 22 . . . f!h8 23.t1e6+ �e8

( T l 2.03) S i m p l i fication : 20.Etc21 White has a large space advantage, so he avoids the trade of rooks of course.

24.f!ad1 4:ld8 25.t1xg6+ 4:lf7 26.4:\gS �c4 27.4:lxf7 �xf7 28.f! xe7+ �xe7 2 9 . t1d 6 + 1 -0, H . W i rth e n s o h n ­

20.f! xf7? �xf7 2 1 .4:\cS f! b8; 20.f!fc1? f! xc7 2 l .f! xc7 4:la4 and Black can put

C . P ritch ett, M i d d l es b rough 2 3 . �c4+ ct;f6 2 4 . �c3+ 25.4) x d4 c:Jf7 26. 4)f3 27.Axf8 1-0 Three points for

1 979. 4)d4 Jlf8 1 4.d5!

up strong resi stance in both cases. 20 Ete7 2 0 . . . .ll d 7 2 1 . 4:\c S f!e8 . . •

22.�f2 .llc8 23.f!fcl f!fe7 24.4:lf3 +- . 21.4)f31 Etb8 2 1 . . . .lld7 22.f!c7 f!h8 2 3 . 4:\a S +- ( Avrukh in CB M 9 3 ) .

2 2 . 4) bd4 Ad7 2 3 . 4) e 5 Ae8 24.Etfc1 Af7 25.g41?

exd5 1 5 . .llg 5.

Test 1 2 (Tl 2.0 1 ) Weaknesses: 31.Etb71 Etd5 3 1 . . . f! h8 32.f! xg7+ �xg7 33.Jlxe5+ �f7 34 . .ll xb8 f! xb8 35.4:lc3 ± ; 3 l . . .Jlc4 3 2 . f! b6 f! d 5 33 .4:ld6 f! c7 3 4 . f! h8+ �h7 3 5 . 4:\fS ± . 3 2 . Etb6 Af7 32 . . . .ll d 7? 3 3 . f! x h 6 ! +- ; 32 . . . f! e8 3 3 . 4:ld6 ± . 33.4)d6 Etd8 34. 4)f5

ct}h7 35.Etb7 Et8d7 36.Etxd7 Et xd7 37.4) x g7 ct} x g7 38. Et x e 5 ct}g6

23 1

The ChessC�fe Puzzle Book 2 Ope n i n g a second fron t . 2 5

• • .

g6

B l o c k ad e :

(T 1 2 . 0 5 )

17

.••

E{c41

2S .. .fxg4 26.hxg4 .:bhd7 27.'fic7 'it>f8

1 7 ... .:be4 1 8.c4 .:bxd2 1 9.'8. xd2 'fi c6=.

28 . .:bdf3! .:bxeS 29 . .:bxeS +- (Avrukh). 26.Elc7 Elbe8 27.g5 hxg5 28.fxg5 .£)h7 28 . . . 4Jfd7 29.4Jxf7 'it>xf7 30.'fixb7 'fi h8 3 l . 'fi cc7 +- ( Avruk h ) . 29.h4 .£)f8 30.e41 d x e4 3 1 .dxe4 fxe4 3 2 .Q. x e4 .£) d 5 3 3 . El x e7 El x e7 34.E{c8 �g7 35.h5 1-0 Two points for 20.'8.c2!.

1 8 .' � x a7 �c61 1 9 . � a3 Elc8 � 20.h3 h6 2 1 .Elb1 Ela4 2 l . . . .:be4

•

(Tl 2.04) B ishop-Pair: 15.Elxc8+ In the game, White played 1 S.g3?! 'fi xcl 1 6 . 'it' x c l .:bd7 1 7 . f4 ? ( 1 7 . Jl e 2 ;t ) 17 . . . .:bcS 1 8 . .\lxcS 'fic8 19.'it>bl 'fi xeS 20.Ae2 'it>f8 2 l .'ficl 'fi xcl + 22.'it>xcl Jld4 23.fS gxfS 24.exfS 'it>g7 2S .AhS JleS 26.h3 'it>f6 27.'lt>d2 '< b5 •••

26.a x b5 .§ c 5 27 .£) x d6 .£) x d6 28.t\' x d6 .§ x c 2 2 9 . t\' x e 5 t\'f7 30.t\'d5? 30.iit"d6 f3 3 l .iit">g8 3 0 . iit" e 5 f6 31 .iit"d6 (31 .iit"e4!?) 3 l . . .iit">f6 60.�c5 +- . 57 .4)e7+ ct}g7 58.4)f5+

ct}g6 59.4)h4+ ct}g7 60.t\'>g8 6'5.�xh6+ 'l!,>h7 66:{;1[4 +- . 61.4)f5+

ct}f6 62.-t\' >d5 64.'l;'th6 '< f7 ct}c6 3 9 . 4) x h 6 ctlb5 40. E! >< g6 E!e7 4 1 . 4) g8 1 -0 Two points for 1 2 .�c4!.

238

Solutions (T 1 3 . 1 1 ) Proph y l a x i s : 1 7 . § h 1 1 White's long-term kingside attack i s very dangerous. 17 .fxe4? �g4+ 1 8 .'i!>' h 1 �f3+ 1 9 .'i!>'g1 �g4+ with perpetual . 17 ... �g5 18.h4 �e6 19.�b1 h6 20.�g1 �a5 2Vitlh2 �b3 22.§a2 �xa4 23.�g4 �a5 24.§g1 �d8?1 This loses a tempo, but Black cannot stop the attack anyway. 25.f4 �c7 26.< a 6

•..

(T l4.07) Bishop-Pair: 14.jlfl! A typi­ cal move to preserve the important light­ squared b i shop, p l u s avoiding ex­ changes c reates more pressure on B l ack's cram ped position. 14 d5 .••

1 4 . . . E! ac8? 1 5 .LL:ld2 .llg6 1 6 . .llg2 ± . 1 5 . 4) d 2 jlg6 1 6 .f3 1 6 . .ll g 2 ! ? . 1 6...b5?! 1 6. . . E!fe8 17.e4 dxe4 18.fxe4 eS 1 9.d5 E!ac8 20 . .llgU . 17.c5 �d8

28 . . . c5 2 9 . 'i'11 xd6 � x d 6 30.a7 'i'11 a 6 3l . E! a l cxd4 3 2 . E! xa6 +- . 29.4) ><e7 31.�>< d5 1 - 0 One point for 28.a6! and the second i f you saw 28 . . . c5 29.�xd6 'i'11 xd6 30.a7. •

( T 1 4.09) Weak n e s s e s : 23 . . . 4) f6! 24.4)f2 24 . .f:lxf6+ .llxf6 25 . .llh2 .llxh2 26.E!xh2 'lt>f8 27.E!c2 E! xc2 28 . .ll x c2 E!c8! (Wells in CBM 1 09) and Black is

clearly better because of his activity and the three weaknesses in White's camp. 24... 4)e4! 25.4) ><e4 A><e4 26.f><e5 E! >< e4 2 1 . f >< e4 .§ab8 2 2 . a >< b5 a >< b5 2 3 . A.g2 .§fd8 24.4)b3 4)f8 25. .§a6 .§aS 26 . .§>< d 5 c >< d 5 30 . A >< d 5 .§d8 31.jlg2 4)g5 32.�e5 �d7 33.4)c6 .§e8 34.4)e7+ 'i!;lh7? 34 . . . 'lt>f8 •

3 5 . LL:l x g6 + fxg6 3 6 . 'i'11 c 3 E! x e l + 37.'i'11 x el 'lt>t7 38.c6 +- . 35.c6 4)h3+

3 6 . A >< h3 � >< h 3 37.c7 �d7 38.�c3 Af5 39 .c8� E! >< c8 40.4) >< c8 4 l . � >< c8 A >< c8 4 2 . A >< f6 g ><e6 f><e6 2 l . A c 1 't!Jc5+ 2 2 . 'i!;l h 1 2 2 . 'i'11 d 4 �xd4+ 23.E! xd4 ..Q.f6 + . 22 ... 4)e5 + A typical Sicilian scenario when White's f4 - f5 bac k fi re s . 2 3 . �e2 4) >< f3 24.g >< f3?! 2 4 . f! x f3 f! x f3 2 5 . � x f3 E! f8 =i= . 24 �h5 25.Ae3 Now White j u st gets b l o w n away in sty l e . 2 5. . ..§><e4 27.Ag5 A last trick, but Black does not fall for i t . 27 . . . d 5 ! 0- 1 Tw o p o i n ts fo r .•.

1 8 . . . LL:la5!.

242

Solutions (T 1 4. 1 1 ) Counterplay, B ad B i shop: 13 bxc61 In the game, Black played

�b7 43.c5 43.§ xd6 4Jf8 44.c5 §e7 4 5 . 'it>fl §al +=. 43 . . . 4) x c 5 1 ?

13 . . . .ll xc6? 1 4 .0-0 g6 1 5 .'iit'd 2 ± 'iit' c7 1 6 . § f3 b6 1 7 . 4J d 1 h 5 1 8 . a 4 .ll. c 5 1 9.§c3 .ll e7 20.b4 'iit'b7 2 1 .§b3 .ll.d7 22.4Je3 §c8 23.a5?! .llb 5! 24.axb6 a6 25.§c3 'it'd7? (Gelfand and H uzman give the i nstructive line 25 . . . § xc3! 26.'iit' x c3 'it>d7 27 . .llc 5 §c8 28.'iit' d 4

4 3 . . . dxc5?! 4 4 . bxc5 4::\ x c5 4 5 . § xc5 'it>xb6 46.§dc3 §f6 47.§e5 ;!; . 44.bxc5 E!e7 4 5 . �fl 4 5 . § b3?? § a x e 2 +

.•.

46.'it>gl § e l + 47.'it>g2 §7e2+ 48.'it>h3 § h i • (Tisdall in CBM 6 1 ) . 45 ... E!a1 +

46.�f2 E!a2 47.�fl E!a1 + 48.�f2 E!a2 Yz--Yt Two points for 40 .. .f4!. (T 1 4. 1 3 ) U n d e rm i n i n g : 24.b3 1 = 24 . .llx g 5 ? 'iit' g 4 -+ . 24 . . . t\'b5? 24 . . . § ae8 25.bxc4 4Jf4+ 26.gxf4 'iit'g4+ 27.'it>hl 'iit' f3+ 28.'it>gl 'iit'g 4+= ( Kundin/ Alterman in CBM 72); 24 . . . 'iit' f5 25.f3 §e7 26 . .ll.d 4+ 4Je5 27. bxc4 'iit' x f3+ 2 8 . 'it> g l § ae8 29. 'iit' d 2 � . 25.bxc4

t\' xc4 26.E!d21 4)e5?

28 . . . § xc5!! 29.bxc5 'iit'c6 30.'it>h 1 .llx c5 3 1 .'iit'd2 'iit' x b6 ;�;; in Informant 59/ 1 32.) 26.§c5 § xc5 27.bxc5 §c8 28.c4 dxc4 2 9 . § c l 'it>e8 30.4Jxc4 'iit' d 5 3 1 .4Ja5 .ll c 6 3 2 . .ll e 3 'iit' e 4 3 3 . 4J x c 6 'iit' x c 6 34.h3?! 'iit' b5 35.'iit'c 2 'iit'c6 36.'it>h2 a5 37. § a l § a8 38.§a4 h4 39.'iit'a 2 'iit'b5 40.'iit'c4 'iit'c6 4 1 .'iit'a 2 'iit'b5 42.c6 'iit' xc6 43.§ xa5 § b8 44.§a7 'iit'e4 45.'iit'b3 'it>f8 46.§d7 g5 47.§d4 'iit'f5 48.§c4 §b7 49.§c8+ 'it>g7 50. § c7 gxf4 5 I ..ll d 4 'iit' e 4 5 2 . 'iit' f3 1 -0 . 1 4 . 4) a 4 t\'a5+

1 5 .c3 c5 1 6 . 4) x c 5 .Q. x c5 1 7 .b4 .Q. xd411 18.bx a5 .Q. xc3+ 19 .�f2 Now B lack has three candidate moves: 19... 0-0 1 9 . . . .llx a5 and 1 9 . . ..ll.x a l . We like Gelfand's . . . 0-0 and give a sample line: 20.a6 E!fc8 21.E!c1 E!c4 with counterplay. Three points if you calcu­ lated until 18 . . ..ll.x c3+. (T I 4 . 1 2 ) Outpost: 40

..•

f41 4 1 .g4

4 1 .gxf4 4::\ x f4 42.4Jxf4 § xf4 43. 'it>g3 §f5 44.e4 §e5=. 41 c6! 42.4)xb6+ •..

Now Black's position is hopeless. His pawns and king are too weak to defend. 26 . . . 'iit' x d 5 ? 2 7 . 'it>g l +- ( K u n d i n/ Alterman); 26 . . J� xe3! 27.fxe3 'iit'e 4+ 28.'iit'f3 'iit' xf3+ 29.'it>xf3 4Je5+ 30.'it'e2 §c8 (Kundin/Alterman) and B lack has

some compensation, but I doubt that it is sufficient. 27.E!c1 t\'b5 28 .Q.xg5 E!c4 29.E! xc4 t\'xc4 30.E!d4 t\'c5 30 . . . 'iit' c 3 3 1 . .ll d 2 ! +( Ku n d i n/ Alterman). 31 . .Q.e31 4)g6 32.t\'h5 White invites everybody into the attack. 32 E!e8 33.E!e4 t\'b5 34. t\'h6+ �g8 35 ..Q.d4 E!e5 36 .Q. xe5 dxe5 37.t\'d2 a5 38.d6 t\'d7 39.E!c4

243

•

• ..

•

The ChessCafe Puzzle Book 2 �g7 40. �c7 �g4 4 t .�fl �f3 42 .d7 �h 1 + 4 3 . �e2 �e4+ 44.�d1 �f3+ 4 5 . �c 1 �a3+ 46.�b1 b3 47.d8� b x a 2 + 48. � x a 2 �b4+ 4 9 . � b 2 � e l + 50.�a2 1 -0 One point for 24.b3! and one for the assessment that the position is equal. (T14. 1 4) Opening the Position: 32.g41 White's bad bishop will enter the attack w i t h d e c i s i v e e ffect. 3 2 f x g4 33 .1}. x e4 d x e4 34. j},h4 � x e5 .••

•

34 . . . E! xa7 3 5 . E! xa7 i!1f5 ( 3 5 . . . '� h 6 36.Ag3 E! d8 37.Af4 i!1f6 38.E! f7 +- ) 36.i!1a2 +- . 35.dxe5 j}_ xe5 36.�fl

�g8

37.\t>h2 e5 38.E!d3 i!1c4 39.E!f3 +- .

3 7 . � h 2 h 5 37 . . . i!1c6 3 8 . b 3 b5 39.'li1d8+ \t>g7 40.i!1c7 +- . 38.(3 �c6 39.�d3 �g7 40.�c3 �b5 41.�c8 � x b 2 4 2 . � x d7 � x f3 4 3 . �d8 �e5+ 44.g3 1-0 O n e p o i n t for 3 3 . i!1g5! and the second for 33 . . . f6 34.i!1e3!.

Test 1 5 (TlS.Ol) Blockade: 33 ..£)f31 ± White's strong blockading forces must be coor­ d inated in the right way. 33 Ae4 •

•.•

33 . . . d3 34 .i!1d6 ± (34. E! e l ?? i!1xel + 35.4Jxel d2 -+ ); 33 . . . i!1e7 34.E!el Ae4 3 5 . i!1f4 i!1b4 36.4Jd2 \t>h7 37.g4 ± . 34 . ..£)e5? 3 4 . i!1b8+! \t>h7 3 5 . i!1xb7 Axf3 36.gxf3 i!1xf3 37 .i!1xa7 i!1xh3 38. i!1c7 d 3 39. i!1g3 ± . 34 . . . d3

35. ..£)g6+ �h7 36 ..£)f4 �xb2 37.f3 �d4+ 38.�h2 d2 39 . ..£)e6 �e5 4 0 . f x e4 � x e6 4 t .e x f5 �e5 4 2 . �d 1 � x f5 43.�h1 Jle5 44. �e3 .1l.f4 4 5 . �e7+ �g6 46. �e8+ �g7 47. �e7+ �g6 48.�e2 h5 49.�fl �d5 50.�d1 �e4 5 t .�b3 c5 5 2 .�g8+ Cifj>f6 5 3 . �f8+ Cifj>g6 5 4 . �g8+ �f6 55. �f8+ %-'h One point for 33.4Jf3, one for the assessment that Wh ite is clearly better, one if you saw 33 ... d3 3 4 . i!1d6 and the last for 3 3 . . . Ae4 34.i!1b8+ etc. •

37 .Jl.g31 .1}.g7 37 . . . 'li1xb3? 38 . .§ f8+ i!1g8 39.Axe5 • . 38.�xg8+ 1-0 Three points for 32.g4!. (T l 4. 1 S) B i shop- Pair: 2 1 . j}, xc51 22. � x c5 2 2 . 4Jxc 5?? i!1 c l + mates . 2 2... �g41 23.�e3 23.E!d2 Axg2 -+ . 23 .1}.xg2 24.�f2 Jlh3+ 0- 1 Two points if you saw 2 1 . . .Axc5! 22 .i!1xc5 ••

•••

;';t'g4! -+ .

(Tl 4. 1 6) Improving Piece Placement: 33.�g51 �f8 33 . . . f6 34:il1e3! ii1f7 35.4Je4 '\tfg7 36.i!1a7 b5 37:il1b7 E!c2 38.b4 E!c4 39.f3 +- . 34.�e7 �c8 35.�d4 �c5 36 ..£)e4 �f5 36. . . E!cl + •

(Tl S.02) I mproving Piece Placement: 14 j},d8! According to Makogonov's rule, B lack 's f6-bishop must be im­ proved. Its dream square would be b6, so B e nj a m i n began the j ourney. •••

1 4 . . . Ag7?

1 5 . i!1 e 2 f5

1 6 . 4Jd 3 ± .

1 5.�e2 c6 1 6.�d1 J,l.c7 17.h4?1 1 7.4Jd3 Ab6=. 17 ... �e7 18.g3 �g7 19 .£tf3 a4 20.h5 .il.a5 21.�c1 �d7 22.�fd1 �ae8 23.�g2 f5 24.exf5

244

•

Solutions E{xf5 25.�e4 � xe4 26.�xe4 E{ef8 27. E{d3 E{ x h 5 2 8 . � h 4 E{ x h41 29.gxh4 29.�xh4 �f5 -+ . 29... E{f4 30."t\'e2 "t\'f5 31.c5 cxd5 32.cxd6 Jlb6 33.Etfl e4 34.Etg3 d4 35."t\'d2 e3 36.�el �d5+ 37.Cit'h3 �e6+ 37 . . . � xh4+ 38.'iti'xh4 �hS • . 38.Cifjlg2 �d5+ 39.f3 �xd6 0-1 Two points for 14 . . .Ad8! .

E{b8?1 22 . . . �a2!? 23.�al �xe2 24 . .ilf3 .ilf8 25.�b5 �d2 26.4::\ x dS .ilxd5 27 . .ilxd5 �f6 28.�fl �d8 29.�c4 'iti>g7 30.�a7 .ile7 3 1 .�b7 �d6 3 2 . .il x f7 � xd3 33 . .ilg8 � xg8 34.�xe7+ �xe7 35.�xd3 ;!; . 23.�c5 d4 23 . . ..ilf8 24.�c6 .ila3 25 .4:Jxd5 ;!; .

(T 1 5.03) B i shop- P a i r : 40.Jlc41

27. Etb7 §.f8 2 8 . � e7+ Cit'h7 29.Cit'h2 Jle6 30.Jle4 §.e8 31. "t\'a7 "t\'a8 32. �b61? White plays for posi­ tional pressure. 32.�xa8 � xa8 33.4:Jxg6 fxg6 34.� xg7+ 'iti>xg7 35 . .ilxa8 is prob­ ably drawn.; 32.4:Jxg6? �xa7 33.4:Jh4+ f5 -+ . 32 �a2 33.Jlf3 h5 34.�c7 h4 3 5 .g4 � d 2 3 6 . Cit'g2 �g5 37.§.a7 Cit'h8 38.�c6 Cit'h7 39.�e7 Cit'h8 40.�c6 Cit'h7 41.�b71? �f4 42.1i\'b5 1i\'f6?

more firepower. 22

•••

2 4 . � d 5 Et x b l 2 5 . §. x b l Jlg4 26.h31? Af5 26 . . . .ilxe2 27.�c2 e4 28 . .il x e 4 f5 2 9 . .ilg2 g5 3 0 . � b7 ;!; .

4 0 . .ild8? 4::l x d8 4 1 . � xd8 .ilc7 = ; 40 . .ilb4? �c7 4 l ..ila5 �c8 42.�d7 �b8 43 . .ilfl ± . 40 f4 40 . . . 4:Jd6 4 1 ..ild8 4::lxc4 42.�d7 .ild6 43.c7 +- ; 40 . . . .ilc7 41 . .ilb4 j ust look at these mighty bish­ o p s ! 4 l . . . � e8 42 . .il x f7 'iti> x f7 43.�d7+ +- . 4t.E{d7 1-0 One point for 40 ..ilc4! and the second if you saw 40 . . . .ilc7 4 1 ..ilb4 and the third for 40 . . . 4:Jd6 4 l ..ild8 4::l xc4 42.�d7. ••.

••.

(Tl5.04) Domination: 37..A,d6! E{ xd6 37 . . . �cl 38.g6+ +- . 38.� xc8 .A,g7

39.f4 Eib6 40.Cit'f3 E{d6 41 .C3/e2 E{b6 42.Cit'd2 E{d6 43.Cit'c2 E{b6 44. Cit'c3 E{bl 4 5 .g6+ Cit' x g6 46 . � x e6+ Jlf6 47. �g8+ Cit' h 6 48. �xd5 Cit'g6 49.e4 1-0 Two points for 37 ..ild6! . (T1 5.05) Improving Piece Placement: 2 1 . . . "t\'a61 2 1 . . . 4:Jf8?! 22 . .ila4 :;: . 2 2 . Jld3 Jld7 2 3 . .A.fl �g5 24. E{ed3 �e6 2 5 . � e3 �d4 26.�d5? 2 6 . � f2 � a 4 2 7 . h4 .ile6 28.g5 h5 -+ . 26...E{b3 0-1 One point for 2 l . . .�a6! and one for the plan to transfer the knight to d4. (T 1 5.06) Weak C o l o r C o m p l e x : 21.� xd5 2 1 .�c5? 4::lx c3 22.� xc3 e4 23.�cb3 .ild5 24.dxe4 .ilf8 2 5 . �d4 .ilxe4 :'i' . 2 1 . .. cxd5 22.� b6 Wh ite

plays on the light squares, where he has

Kindermann cracks under the pressure. 42 . . . � f8 was cal led for. 43.� xe5± Eie7 44.§.xe7 1i\'xe7 45.�c6 "t\'f6 46. �b8 .A.d7 47.�a5 "t\'g5 48. '#flc7 .A,e6 49.�c6 Jld5 50.�d8 Cit'g8 51.�d7 .A.a2 52.�c6 �f6 53.Jld5 Exchanging B lack's strong bishop. The queen and knight tandem will rule su­ preme afterwards . 53 . . . J}. x d5+ 54 . 1i\' x d 5 Cit'h7 5 5 . "t\'e4 Cit'h8 56.�e7 Cit'h7 57.�c6 �d6 58.�a5 Jlf6 59.�c4 �c5 60.�d2 "t\'d6

245

The ChessCafe Puzzle Book 2 61.�f3 �d8 62.�f4 g5 63.�f5+ e6 2 9 . � e 3 + 'it> x d 6 3 0 . �f4 + 'it>e6 3 l . � e 5 • ( R o i z ) . 27.'lte7+ �g8

28.f4! Jlb7 29.Jle5 �e6 30. 'ltf6 Etxcl 31 .E{xc1 E!c8 32.'lth8+ �f7 33 . 'lt x h7+ �f8 34.'lth8+ �f7 3 5 . 'ltf6+ �e8 3 6 . 1t x g6 + �e7 37.'ltf6+ �e8 38.E{f1 Etc2 39.Jlf3 �c8? 40.Jlh5+ �d7 41.'�f7+ 1 -0 Two points for 1 4 ...1lcl ! .

24.E!fc l �b6 2 5 . .£ld2 ..ll b7 26.�b3 .£lg4 27.e3 .£\xe3 t . 23.�b3 White

challenges the knight immediately, blockading the passed b-pawn at the same time. 23 �d7?! ••.

(T1 5. 1 1 ) Opening the Position: l l e5 Botvinnik opened the position for his knights, before White can consolidate the position for his bishops. I f the bish­ ops take control, they become a power­ fu l weapon. S o t i m e i s pre c i o u s . 1 2 .dxe5 1 2 .e4 .£lf4 1 3 . ..1l x f4 e x f4 1 4 .d5 .£le5 1 5 . .£l e 2 �h4+ + . 1 2 ... � xe5 13.Jle4 �c4?! 1 3 . . . f5 !?

Alekhine decides to maintain the ten­ sion in the position. Not 23 . . . .£\xa4?

1 4 ...1lxd5+ �xd5 15 ..£le2 E!d8 1 6.Ac3 .£l d 3 + 1 7 . 'it>fl b6 + ; 1 3 . . . ..1le6 ! ? .

24:�a2 .£\c3 25."�xa5 �xa5 26 . .£\xa5 .£\ x b l 2 7 . f! x b l ..ll c 3 28 . .£lc6 'it>g7

•••

247

The ChessCafe Puzzle Book 2 29 . .§.b3 Jld2 30. 4::l x b4 .§.b8 3 l .f!.a3 Jlxc4 3 2 . 4Jc6 .§. b3 33 . .§. x b3 Jl x b3 34.4Jxe7 ;!; and White still has techni­

cal di fficulties to solve in the minor­ piece ending. ; 23 . . . .§.c8 leads to an equal position after 24.4Jxc5 �xc5 25 . .§. fcl Jlc3 26.�b3 �d4 27 . .§. xc3 bxc3 28 . .§.cl Jlxc4 29.�xc3=. 24.c5 Jl,xd3 25.exd3?1 Better was 25. �xd3 4::l x c5 (Not 25 . . . dxc5?! 26 . .§. fc l Jlc3 27.�b5 .§.a8 28.�c6 �xc6 29.dxc6 4Je5 3 0 . 4::l x c 5 4::l x c6 3 1 . 4Je4 4Jd4 32. 'iftfl .§. c8 33.e3 +- ) 26 . .§. fc l Jlc3 27.�b5 4::lx b3 28 . .§. xb3 �c5 29.�d3.

25 . . . d xc5 26 . .§fel �e5 27 . .§e3 Grabbing the c-pawn is not good:

queens ide by giving back the exchange. He is even a pawn up at this time. But Black has the better minor piece and play against the doubled d-pawns. 35 ... h5 36.�c2 h4 37.�d3 E!d8 38.f3 �h5 39.�e4 hxg3 40.hxg3 �g5 4V�g2 �d2+ 42.�h3 Af6 43.E!c2 �h6+ 44.�g2 �g7 Prepar­ ing to switch the rook to the h-file. 45.g4 E!h8 46. �f2 E!b8 But perhaps that was a feint?! Notice how easily Black goes from one flank to the other, and there is not much White can do about it. 47.�e2 E!b4 48.E!d2 �h2+ 49.�e3 �gl+ 50.�e2 Jl,xd4

27.�xc5? 4Jf3+ 28.\t'fl �xc5 29.4::l x c5 4Jd2+ 30.'it'e2 4::l x b l 3 l . .§. x b l .§. d8 32.4Jb7 .§. xd5 -+ and B lack has a win­

ning endgame. 27 ... .§c8 28. .§cl

Let us evaluate this position. For the ex­ change, Black has a powerfu l unop­ posed dark-squared bishop, a protected passed b-pawn and targets in the form of the isolated white a-pawn and iso­ lated doubled d-pawns. These elements g i v e B l ac k a w i n n i ng p o s i t i o n . 2 8. . . �d7 29.d4 �g4 30.E!e4 c4 Now B l ac k has connected passed pawn s. 31 .�c5 �f5 32.�e2 b3 3 3 . E! x g4 b2 34.� x b 2 � x g4 35 . .§xc4 White has rid himself of the danger of the passed pawns on the

Material equality has been restored and B lack has crept into White's position w i th deadly effect. 5 1 . � d3 E!bl 52.�cl Jl,c3 53.� xbl �g2+ The king hunt has begun. There were few better at it than Alekhine. 54.�d3 � x d2+ 5 5 . �c4 �d4+ 56.�b3 Jl,al 57.�a3 �c5+ 58.�a2 Jl,f6 59.g5 �xd5+ 60.�b3 �xg5 White could resign without any misgivings at this point, but he wants to be shown. A le k h i n e obl iges: 6 1 .�el �g2+ 62.�d2 �xf3 63.�xa5 g5 64. �el �c3 65.�xc3 Jl,xc3 66.a5 Axa5 67.� x a 5 g4 68.�c4 g3 69.�d2 �g6 70.�b2 �f5 7 1 . �f3 �f4 7 2 . � g l �e3 7 3 . � c 2 �f2

248

Solutions 74.4)h3+ �fl 0- 1 Two points for 20 . . J�b4!.

57.Af8 Not 57.Ag l ? {)e2 58 . .1le3 57 �g6 57 . . . .£:\ h S ! ? . 58. �e7 58. �xdS? �b 1 -+ . 58. . . 4)e4 and B lack has a strong attack. Three points for 5 L .h4. {) x c 3 -+ .

(T I 5. 1 3) Domination: 51 ... h41 was called for. In the game, Black played

. . •

(T 1 5. 1 4) Weak C o l o r C o m p l e x : 14.4)b51 Attacking the key defender of the dark squares. If B lack plays .. .f5f4, then the light squares in his camp will be fatal ly weak - a typical prob­ lem when fighting against the pair of bishops. 14 ... 4)e7 1 4 . . . f4 1 5.§el �f6 1 6. .£\ec3 M5 17 . .£\e4 Axe4 1 8.Axe4 ± .

S l . . .{)e4? This is a mistake and gets no points. 52.Ad4! Judit does not need to

be asked twice and repositions the bishop to shore up her defenses. 52 ... h4 U n fortunately, one move too late. 53.'i!th2 h l �dl + S S . .llg l

1 5 . �b3+ �h8 1 6. 4) x d6 � x d6 1 6 . . . c x d6 1 7 . a 4 ! ± . 1 7 . Jl.f4 �d8 18.Ae5 4)g6 19.�fe1 f4 20.a4 c6 21.a5 4)d5 22.4)c3 4)xc3 23.�xc3 4)h4 24.a6 4) xf3+ 25.�>h2 h2 § g8 34 . .£:\hS ± . 32.4) xe61

j}_xe6 33.� xc6 �e7 34.�xb5 �f7 35.4)g5+?1 1-0 Shabalov could have won immediately with 3S.§ xb8 § xb8

249

The ChessCafe Puzzle Book 2 36:\!t'a6! +- (Psakhis in CBM 93) One point for 3 l .g6!.

(T 1 5. 1 6)

Domination:

22 . . . f61

22 . . . exd5? 23.cxd5 �xcl 24.�xcl f6 ( 24 . . . � x d 5 ?? �xd5 2 5 . � xd5 2 6 . �c8+ +- ) 2 5 . 'tit"c 2 ;t . 2 3 . A. a 1 2 3 . .il.f4 e 5 2 4 . .il.e3 4Jfd6 + . 2 3. . .e51

Now White's bishop bites into granite. Again, B lack doesn't need to open the game : 23 . . . e x d 5 ? 2 4 . c x d 5 � x c l 25.�xcl � xd5 26.'tit"c4 4Je7 27.� e l f5 28.4Jd4 55 . 24.Jlb2?1 24 .4Jd2 4:\xd2 2 5 . � x d 2 4Jd6 2 6 . 'tit"b3 � c 5 + .

24...�fd6 25. '{ta4 §d71? 26.§c2?1 26:i!t'b4 'tit"a6 + . 26... § xc41 27.§xc4 b5 28.§b4 bxa4 29. § x b7 § xb7 30.A.a3 4)c4 B lack is strategically winning, because of his active pieces and t h e n u m e r o u s w e a k n e s s e s i n White's camp. 31 .d6 §d7 32.Jlb4 �f7 33.4)h4 a5 34.Jle1 4)exd6 35.§d5 §b7 36.Jlxa5 g5 37.�f3 §b1+ 38.�h2 �e6 39.§c5 §b2 0- 1 Two points for 22 .. .f6!, with the idea to play against White's bishop. Test 1 6

(T l6.0 l) Outpost: 1 3...cxd511

1 7 . § x c7+ � x c7 1 8 . 4) c3 Jl x b4 19.4) xd5+ § x d 5 20.§d1 §hd8 21 .'{te4 4)c5 22.§cl Jla3 23.t\'f4+ e5 24.t\'xf6 Jl xc1 25.�xc1 4)d3+ 26.�c2 e4 27.t\'e7+ �b8 28.t\'xe4 §c5+ 28 . . . f5! -+ (Golubev in CBM 8 1 ) . 2 9 . �b3 f5 3 0 . t\'e7 §cd5 3 l . t\' x h7 §c8 3 2 .'{tg7 §b5+ 3 3 . � a 3 §a5+ 34.�b3 4) c 1 + 3 5 . �b2 §b5+ 3 6 . � a 3 §c2 37.'{tg8+ �b7 38.4)d4 § xa2+ 0-1 Four points if you calcul ated until 16 . . . 4:\xd3! .

(Tl 6.02) Domination: 30... §b1 1 -+ 31.fxg6 fxg6 32.Jlfl §xc1 33.c4 �g71 34.h4 3 4 . � d 2 4Je5 3 5 .'it>g2 Ag5 -+ ; 34. 'it>g2? � xc2 -+ . 34 ... h5 35.�d2 4)e5 36.�f2 36.'it>g2 4Jg4! 37 . Ad3 .il.c3 3 8 . � e 2 4J e 5 3 9 . � e 3 .il.d4! - + ( M i khalevski i n CBM 70).

36 . . .4)g4+ 37.�e2 Jlc3 38.§d1 § xc2+ 39.�d3 §f2 40.�xc3 �e3 4 1 . §d7 4) x fl 4 2 . § x e7+ �f6 43.§c7 � xg3 44.§c6+ �g7 45.e5 §e2 46.e6 §e3+ 47.�d2 §e5 48.e7 §xe7 49.�d3 §e5 0-1 One point for 30 . . . � b l , with the assessment that Black is winning. ( T 1 6 . 0 3 ) Wea k n e s s e s : 1 9 . §b41 1 9 . � b3 i s n o t as c o n v i n c i n g , e . g . 1 9 . . . 4:\eB 20.4:\xc8+ ( 20 . 4:\xe8 � xe8 2 1 .�hbl .il.b7) 20 . . . �dxc8 2 1 .�hbl �c7. 19...4)e8 19 . . . .il.a6 20.�hb1 4Jd5 2 1 . � 4 b 3 b x c 5 2 2 . � x b8 � x b8 (22 . . . 4:\c3+? 23 .'it>d3 4:\xbl 24.� xd8 'it>xd8 25.dxc5 f5 26 . .ll.fl +- ) 23.�xb8 'it>xd6 24.Axd5 exd5 2 5 . 'it>d2 .il.xc4 26.dxc5+ 'it>xc5 27.�h8 ± . 20.�xe8

�xeS 21.§hb1 Jla6 22.�e3 d5?1 14.cxd5 Jlxd51 1 4 ... exd5? 1 5 .4:\c3 ;!; . 15.§c1 4)c5 16.b4? 1 6.4:\xcS bxc5 1 7 . .il.e4 � hg8 =i= . 1 6 . . . � x d3 1 +

22 . . . �dc8 23.f4 f6 24.a4 e5 25 .cxb6 exd4+ 26.'it>d3 �xb6 27.� xb6 Jlxc4+ 28.'it>xd4 axb6 2 9 . � xb6 ± . 23.cxd6

§bc8 24.�d3 § xd6 25.§a4 b5

250

Solutions 26.c x b5 E!b8 27. f!ab4 Jl.b7 28.Jl.xb7 E!xb7 29.a4 �e7 30.h4 h6 31.f3 lad5 32.f!c1 E!bd7 33.a5 g5 34.hxg5 f! xg5 35.g4 h5 36.b6 a x b6 37.a x b6 E!b7 3 8 . la c 5 f5 3 9 .g x h 5 f! x h 5 40.�c4 f!h8 4 1 . �b5 E!a8 42.E!bc4 1 - 0 Two p o i nts fo r 1 9 . !! b4 ! , o n l y o n e for 1 9.!!b3.

(T1 6.04) Weaknesses: 13 ... f!ac8 I n t h e game, B lack p layed 1 3 . . . !! fc8? 14.!!ac l f6 1 5 .!!gdl

(Krasenkow) 30 . . .Af8 3l .c4 Ac6 32.c5 .!le7 33.xfl �h i + 34.'it>e2 �f3+ 35 .'it>el �h l + 36.'it>d2 �h6+ 37.'it>e2 +- . One point for 1 2 . . . g5!.

(T 1 6. 1 5) Weaknesses : l l . . . J}. x c3 1 1 . . .Ag4 gets two points, as it stops White's most aggressive plan: 4Je5, fol­ lowed by g4.; 1 1 ... 4Jbd5 gets one point. 12.J}. xc3 t:\'b51 N icely played. As Hansen noted on the Scandinavian ChessBase DVD, Black first exchanged on c3 without White having played a3, and then he accepts doubled b-pawns, with the intention of provoking and exploiting weak squares on White's queenside, particularly the light squares. 1 3 . � x b5 c x b5 1 4 . � e 5 a5 The pawns begin their m arch forward . 15.a3 J}.e41? 16.§he1 0-0 Taking the g-pawn is bad: 16 . . . Axg2? 17.§gl .lle 4 1 8 . § xg7 Ag6 1 9. § g l � and if B l ack tries to snag the rook w i th 1 9 ... 'it>f8?, White replies 20.§ l xg6 fxg6 2 1 .§f7+ +- and B lack can call it a day. 17.f3 Ad5 Now the l ight-squared bishops come off. 18.J}.xd5 �fxd5 19.Ad2 �c41 Continuing the invasion on the w h i te squares . 2 0 . J}. c 1 I f 20.4Jxc4 bxc4 2 1 .a4, Black opens up the queenside by 2 1 . . .h5 22.axh5 § fh8 23.'it>a2 (23 .c3? § xb5 24.'it'c2 § ab8 25 ..ll.c 1 a4 26 . .§e5 .§ b3 27.f4 a3 -+ ) 23 . . . § xb5 24.'it>a3 § ah8 25 . .ll.c3 'it>f8 :;:

and B lack's control o f the b-file, better

254

Solutions minor piece and soon-to-be centralized king gives him every prospect of tak­ ing the fu ll point. 20 ... 1::Uc8 2 1 .f4 b41? It is interesting how the Danish GM switches strategy. The b5-pawn would have recaptured on c4 had White decided to take the knight, but he now decides opening the queenside is more adv antage o u s . 2 2 . � x c4 .§ x c4 23 . .§d3 l f 23.axb4? axb4 24.§.d3 §.c6 2 5 . f5 §. ca6 Threatening mate! 26.c4 bxc3 27.bxc3 §. a 1 + 28.'it'b2 §.8a2+ 2 9 . 'it>b3 §. x g 2 + , and Black w i n s .

23 ... bxa3 24 .§ xa3 b5 •

accomplished. 32 ....§e8 33.c3? White is almost at a loss for playable moves. If 33.b3 axb3 34.cxb3 §.c6 35.§.f2 + , Black has a great advantage. 33 ... .§e2 34.c xb4 � x b4 35 . .§c3?1 35 . .ilxb4 §. xb4 36.b3 gives White better draw­ i ng chances . 35 . . . .§ x d4 36 .§c7+ �e6 37.Ac1 .§d1 38. .§cc3 .§ed2 39 .§f4 �d3 White is helpless to pre­ vent Black from tightening the noose on the q u e e n s i d e . 40 . .§c6+ �d5 4 1 . .§f x f6 .§ x b2 + 4 2 . � a 1 .§b5 43. .§fd6+ �e5 0-1 White had had enough . F i v e points for l l . . . .ilxc3 •

•

1 2 . .ilxc3 i;}'b5! .

(T1 6. 1 6) Improving Piece Placement: 17 . .§c21 is the most precise move. 1 7 . i;}'c2? Not the best. H e inemann played it against Troyke, and was for­ tun ate that B l a c k fa i l ed to fi nd 1 7 . . . .Q..h 6! ! + winning . ; I n the game, White played 1 7 .a3?

With one b-pawn having been ex­ changed, the other marches forward. Sometimes doubled pawns can be ad­ vantageous! 25.f5 White desperately tries to create counterplay. 25 ... b4 26 .§d3 Or 26.§.a4 §. a6 =i= and Black is clearly on top. 26 exf5 27. .§e5 .§d8 28..§ xf5 a4 White is almost com­ pletely tied up. Hansen notes that Black's plan is to hold the centralized knight on d5 with the rook and then bring his king to e6 after playing f7-f6. Th is, together with a possible g7-g6, will cause the white rook to give up its control of the fifth rank, at which point Black will be able to increase the pres­ sure on the queenside by §. d8-c8, with multiple threats. 29.Jl.d2 f6 30.h3 �f7 31 .g4 g6 32 . .§ff3 Phase one •

•••

17 . . . 4Jxb3!! Black has correctly calcu­ lated that this simplifying line leaves him on top. 18 ..ilxb6 (Or 18 . .£\dS .ilxd5 1 9 . e x d 5 a4 -+ (Bosch ) ) 1 8 . . A)xd2 1 9.§.b2 g l El. b l + 3 2.'i!i>f2 Y2 - Y2 ,

A.Maximenko-S.Marinkovic, Ymjacka Banja 1 99 1 .) 26.Jlxc6 E! xb6 The smoke has cleared and Black is a clear pawn up. White has drawing chances because of the opposite-col ored b i shops, so Black has to be careful about allowing the exchange of rooks. 27 .g3 Ad4+ 28.'it>g2 El.b2+ 29.�hl El.c2 30.El.c8+ �g7 3 1 .Ad7 ..!l.cS 32.El.a8 El.c3!

Well played. B lack keeps the position dynamic with the asymmetrical pawn structure. 33.El.xa5 l f White tried to hold the f-pawn, B lack simply takes the a­ pawn with the rook. 33 . . . E! x f3 34.a4 El. e3 35.Jlc6 g5 36.g4 hS The plan is clear. White has no real chance to ad­ vance the a-pawn, so Black will me­ thodically bring up his king to support the advance of the kingside pawns. W h ite can only hope that B l a c k stumbles. 37.gxh5 'i!i>h6 38.El.b5 El. e l + 39.�g2 g4 4 0 . 'i!i>g3 'i!i> x h S 4 I . fi. b 2 El.e3+ 42.'lt>g2 'i!i>h4 43.'i!i>fl El. a3 44.El.c2 �h3 Now the h-pawn falls. 45.e5 El. a l + 46.'it>e2 'lt>xh2 47.�d3+ 'lt>g3 48.'lt>c4 fS 49.'lt>d5 f4 SO.'lt>e6 E! e l 0- 1 ; 1 7.< g3 26.f>< b4 29.a5 �b1 30.ttf3 tt >< f3+ 31./i) >< b6 a 5 33 .Ag5 a4 34.Ae7 � >< b6 3 5 . /i) e 1 �b2 36.Ac5 h5 37./i)d3 a3 38.Jl.>< d5 29 . � >< a 2 /i) >< e7 30. /i) e4 �c4 3 1 . /i)d6 �c3 Yl-Yl Two points for 18 . . . 4Jb6, with the idea . . . 4Ja4, and one point for 1 8 . . . §. b8 and another one if you wanted to combine it with . . . 4Jd7b6-a4. (T 1 7. 1 3) Simplification : 16 /i)eSI B lack had to keep his f6-knight, a key piece in the defense of the light squares in the center. 16 . . . exf3?! 17.�xf3 4Je8 18 ...U4 ( 18.Axe7? .£\xe7 19.4Jc5 4Jf6 ;�; ) 1 8 . . . 4Jf6 1 9 . §. a d l b5 2 0 . .ile5 4Je4 2 1 .4Jxe4 .£\xe5 22.dxe5 dxe4 23.�xe4 �b6 24.4Jd4 ± ; In the game, B lack . •.

259

The ChessCafe Puzzle Book 2 played 16. . . .§e8? 1 7 ..J�..xf6 .ilxf6 18.fxe4 dxe4 1 9 . �g4 .ll g 5 20 . .§ ae l g6 2 1 ..£\xe4 f5 22.�xg5 .§ xe4 23 . .§xf5 +­ and White won later. 17. .sl xe7 exf3 18.�xf3 1 8.gxf3 �xe7 1 9.E!ae l .£lc7 20.e4 E! ae8 ;!; . 18 . . . 4) x e7 19.4)c5 4)f6 ;!; Four points fo r 16 . . . .£le8 17 . .Jil.xe7 exf3. Two points for 16 ... exf3 17. �xf3 .£le8. (T1 7. 1 4) Opening the Position: 1 2.d51 12 . .Jil.b2 E!g6 1 3.d5 transposes and also gets four points.; 1 2.E!d l , with the idea d5, gets two points. 12 ...exd5 12 . . . e5 does not help: 13 ..£lh4 g6 14.f3 .£lg5 1 5 . f4 .£lf7 1 6 . .Jil. b 2 .£ld7 1 7 . e4 ± . 1 3 . Ab2 �g6 14.cxd5 4)d7 Not 14 . . . .ll x d 5 1 5 . E! ad l c6 ( 1 5 . . . .Jil.e6 16. .£ld4 ± ) 1 6.b5 (16 . .§ xd5!?) 16 . . .'fl .Jla3 30 . .§bl d3 3 1 .cxd3 (31 .�e3? backfires because of 3 l . . .dxc2 32 . .§xd7+ «t>e8!! -+ ) 3l ...E!c2 32.�e3 �d5 33.�h3 h5 and Black's activity may even compensate two p a w n s . 29 . . . Aa3 3 0 . � b l � x c2 3 l . � xd4 � x d4 3 2 . � x d4 �e2?

32 . . . E!cl + 33.E!dl .§ xbl 34 . .§xbl «t>e6 gives B lack good drawing chances. 33.�d7+ +- lc6 3 2 . El. a 3 ± . 27 .E{e1 1 E{fc8 28.j},d3 �f8 29.Ete5 E{Sc7 30.Eta5 j},cS 31 .b4J �d5 32.�b2 g6 32 . . . 4Je3 33.4Jc5 4Jxg2 34 . .>lxa6 ± (Ribli in CBM 94 ) . 33.�b3 �e3 3 4 . � c 5 Eta7 35.g3 �e7 36.f4 f6 37.Ae4 E{b6 38.c4 e5 39.fxe5 fxe5 40.Etd3 �f5 41.�a4 E{e6 42.b51 �d4+ 43.�c3 1-0 One point for 1 9.a4!. (T1 8.06) Domination: 13.� xe4 fxe4 14.�a51 0-0 1 4 . . . 4Jd5 1 5 . .>lg3 h5 16.h4 'it'd7 17.El.cl! Prophylaxis against b6. 1 7 . . . El. d8 1 8 . .!le2 g6 1 9 . 0 - 0 ;!; (Golod i n CBM 1 0 1 ) . 1 5 .b4 �d5 1 6 .Ag3 AdS 1 7 . E{ c 1 j}, x a 5 18.bx a 5 � and White's bi shop-pair gave him a long lasting advantage. One point for 1 3 .4Jxe4 fxe4 1 4 .4Ja5!. (T l 8.07) S i m p l i ficat i on : 29.�a61 White's superfluous knight is exchanged against the key defender: the d7-bishop. 29 ... � xa6 30.E{xd7 �c5 3l.E{da7 E{ed8 32.Ah3 �g8 33. �f3 Eib7 34. E{ x b7 � x b7 3 5 . Et a 7 E{b8 3 6 . � f6+ �g7 3 7 . � d7 +- a n d White went o n t o w i n . One point if you calculated unti l 30.El. xd7.

(T l 8.08) O pe n i n g t h e P o s i t i o n : 15.�f511 1 5 .4Jxh5? w i l l be punished by 1 5 .. :�k4+ 1 6.'it'gl 4Jc6 -+ and gets no points. 15 ... �c4+ Black has two other ways to go astray: ( I ) 1 5 . . . exf5 16.�xd5 4Jc6 17.e6 'it'f8 1 8.exf7 �a6+ 1 9 .'it'g 1 ii1c8 20.El.e1 4Jce7 2 l .�d6 �d8 22.�e6 ii1c7 23.El.h3 +- (Stohl in CBM 9 8 ) ; ( 2 ) 1 5 . . . 'it'd7 1 6 .4Jd6 f6 17.c4! fxe5 18.dxe5 4Jxe5 1 9.�f8 4Jbc6 2 0 . � x a 8 'it'xd6 2 l . c x d 5 e x d 5 22.El.e1 ± ; 1 5 . . . ii1d7! might be best, but White keeps the advantage by 1 6.4Jd6+ 'it'f8 17 .c4 4Jc6 18.cxd 5 4Jxd4 19. ii1e4 e x d 5 2 0 . ii1 x d 5 El. b8 2 1 . El. e 1 ii1e6 2 2 .ii1xe6 4Jxe6 2 3 . El. h3 ;!; . 1 6.�g1 e x f5 17.�xf5 �d7 Or 17 . . . 4Jc6? 1 8. e6 +- . 18.e6 Smashing through . 18 ... �f6

19.Ete11 �xc3?1 19 . . . 'it'f8? does not work : 2 0 . e x f7 'it'xf7 2 l .�e6+ 'it'f8 22.ii1c6! +- (Stohl); if 19 . . . 4Jf8!?, then 20.El.h3 cxd4 2 1 ..!lxf6 gxf6 22.e7 4Jg6 2 3 . fl. g3 fl. h 8 24 .�xf6 fl. g8 2 5 . f4 ± . 20.exf7+ �xf7 20 . . .'it'f8 21 .El.e8+ +- . 2 1 . �e6+ �f8 2 2 . Et h 3 � x d4 22 . . . ii1xc2 23.Jlxf6 gxf6 24. ii1c6 +- . 2 3 . Etf3 � x h4 24. E{f4 �c3 2 5 . j}, x h4 25 . .>l x f6 ! ? . 2 5 . . . E{h6 26.Ete5 �d2 27.j},xf6 1-0 I f you saw that 1 5.4Jf5!! gives White a very strong attack, you get four points.

262

Solutions (Tl 8.09) Weak Points: 13 .Q. )(f41 I n the game, Black played 1 3 . . ..1lb7? •..

"Now a serious mistake! I n general Black should be happy to undouble his c-pawns, but here the pawn on d6 will become a permanent weakn e s s . " (Kasparov in CBM 62) 1 4.i:txd6 cxd6 1 5 .4)d4 §. ad8? ( 1 5 . . . i:tc8 was cal led for.) 16.4Je6 §.d7 1 7.§.ad1 4Jc8 1 8.§.f2 b5 1 9 . §. fd2 § de7 20.b4 'itff7 2 l .a3 i:ta8?! ( Black could put up better resis­ tance after 2 l . ..§. xe6 22.fxe6+ §. xe6) 2 2 .'itff2 § a7 2 3 .g4 h6 2 4 . § d3 a5? Opening the a-file plays into White's h a n d s . 2 5 . h 4 a x b4 2 6 . a x b4 §. ae7 27.'itff3 §.g8 28.'itff4 g6 29.§.g3 g5+ 30.'itff3 4Jb6 3 1 .hxg5 h xg5 32.§.h3! §. d7 3 3 .'itfg3 'itt e 8 34 . §. d h l i:tb7 35.e5!! dxe5 36.4Je4 4Jd5 37.4J6c5 i:tc8 38.4Jxd7 i:txd7 39.§h7 §. f8 40.§. a l 'itfd8 4 1 . §. a8 + i:tc8 4 2 . 4Jc 5 1 -0 . 14.f! xf4 c51 Black has good posts for his pieces, which gives him good play, e.g. 1 5.f!dl .Q.b7 16.f!f2 f!ad8 1 7 . f! fd 2 f! x d 2 1 8. f! x d2 4) c 6 19.f!d7 f!c8 "and after 4Je5 B lack i s fine. This plan was recommended by Capablanca - but alas, only after the game was over." ( Kasparov) Four points for 13 . . . .ll. xf4. (T1 8. 1 0) Positional Exchange Sacri­ fice: 25 f! xd31? The wh ite bishop ••.

was neutral izing any pressure by Black along the d-fi le, so Black sacrifices the exchange! 25 . . . g5? 26.f4 ± . 26.cxd3 f! x d3 27.�e2 I f 2 7 . 'itf c 2 , then 27 ... §.b3 28.§.bl g5= and the position is equal . ; 27 . § e l is not as good: 27 ... §.b3 (27. . ..1:tc4!? 28.�c2 b5 29:�f2 §. b3) 2 8 . §. e 2 g5 ( 2 8 . . . �d5? 29.g5 .ll x g 5 3 0 . § e 5 §. x f3 3 1 . �g2 +- ) 29.§.d2 Ac4 ;!; . 27 ... f!b3

A very interesting dynamic relationship of pieces has arisen. Technically Black has "only" two bishops plus a pawn for the queen, but once again the power of the bishop-pair is evident in open posi­ tions. 28.f!dl g5 B lack presses on. 28 ... § xb2+ 29.�xb2 �xb2 30.'it'xb2 g5= is equal, but not more. 29.f!d2 Black need not fear 29.§.d3?! § xb2+ 3 0 . � x b 2 i:t x b 2 3 1 . 'itf x b 2 Ac4. 29 ... < d4 A >< f3 1 8 . e>< f3 ·{!hf3 'i' and B lack went on to win, but objectively this heavy piece endgame should stil l be drawn. n ... es 1 3 . . . b6 14.4Jg5 4Jd4 15 ..il>h7 Y2Y2 . 24 ... �b5 25.\tlc2± Two points for 24.-tldl !. (T20.04) Opening the Position: 15.f5!1 T h i s b l o w s the p o s i t i o n open for White's bishops. Black is defenseless. 1 5.'iti'bl? 0-0-0 promises White no real advantage . 1 5 � x a 2 1 5 . . . 8 x e 5 16.�e4 exf5 17.�xf5 g 6 1 8.�f6 .§g8 1 9 . .llg5 �c7 20 . .ll f4 +- . 1 6 . f x e6 � x e6 1 6 . . . -t\ x e 5 1 7 . e x f7 + � x f7 18.�e4 'it!e7 1 9 . .llh 3 'it>f7 20 . .llg5 �e8 2 1 . [4 +- . 17. �f4 .§.dS 1 7 . . . �xe5 18 . .llh 3 +- ; 17 . . . -t\xeS 18 . .ll h 3 �f6 19.�e4 'it!e7 20.f4 .tlg6 2 1 ..lld7+ 'it>d8 22 . .llxc6+ 'it>c7 23 . .§d7 + +- . 1S.Jlc4 �e7 19 .§.he1 h5 20.�g3 4) x e5 2 1 . .§. x dS+ \tl x dS 22. Jlf4 4) x c4 23 .§.xe7