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.'àb330.(àa5 %àd6.It's better to apply immediate , but it's logical to focus on a future blackpressure when such opportunities are given.king on g8.]Remember the necessity of adapting to 6.(àc6 7.(àe2 'àg4the opponent's moves and sometimes [ 7.(àb4 8.'àe4 c6 is equal according tochanging one's original plan.] Petrosian.This opinion of his is probably29.(àe6 30.(àa5 b5 31.(àc6 %àe8 because of Black's strong control of the[ 31.%àd6 also results in a difficult position square d5.Objectively White has theafter 32.%àxd6 'àxd6 ( or 32.cxd6 advantage in space and most people would33.(àd8!! when White has the incredible ) most probably judge the position as33.'àe2 followed by c2-c4.] slightly better for White.In this slightly confusing situation we might use the has a space advantage, but Black hasclever suggestion of the Scottish managed to exchange a pair of minor pieces.Grandmaster Jonathan Rowson in The White's remaining bishop risks becoming aSeven Deadly Chess Sins (2006) and say bad piece.that White is slightly better, but that the 23.(àe4 b6 24.%àa6 %àc8 25.%àxc8?favourable trend is for Black.We could It's not easy for Bukic to find an inspiring spotalso invent a sign between += and = which for his queen, but now matters become evendoesn't exist formally, but surely does in worse.&àfxc8 26.&àc2 White has no targetsmany players' minds during their analysis.] and can only sit and wait.Incidentally8.f3 'àe6 9.(àbc3 %àd7 10.(àe4 'àd5 11.(àc5 computers are not good in such positions%àc8 12.a3 e6 13.%àc2 EXERCISE: Should because they don't understand such things asBlack exchange on c5 or just calmly develop when a square complex is weak.Petrosianwith 13.Be7? thought Black was clearly better here, but theANSWER: The golden rule, when your engines judge the position as equal.I trustopponent has more space, is to exchange Petrosian's judgement more than computer'spieces.The position isn't of the open kind, so judgement in positions which are not of athe pair of bishops shouldn't be anything to tactical nature.worry too much about.$àf8 Black's king naturally heads to the'àxc5! 14.%àxc5 excellent square on d7.27.&àfc1 $àe8 28.'àh4[ 14.dxc5 may be answered by the clever (àf5 29.'àf2 $àd7 30.g4 (àfe7 31.'àg3(àd7 15.f4 %àd8! 16.0-0 'àb3!! followed by [ 31.'àh4 is answered by (àg6 followed by.17.Nxc5 when the bishop on d3 is Rh8 and.h7-h5.]hanging.] 31.&àh8! Black's target in White's position is14.%àd7 15.0-0 %àe7 16.%àc2 White has the pawn on g4.32.h4?! Such a pawn movemore terrain with his strong pawns on e5 and makes White's bishop worse after Black's nextd4, and doesn't want to devalue it with move.h5 33.g5?! See the last remark.unnecessary exchanges.%àd7 It's typical of Better is a move with the king.Petrosian to invite a repetition of moves, but EXERCISE: How should Black continue?you can never be sure he wants the draw by ANSWER: The rook has no function any morethreefold repetition.This is often a on h8 and can instead overprotect the knightpsychological ploy to test if the opponent is on d5 with indirect pressure on the d4-pawn.interested.This kind of information is always &àhd8 34.'àf2 $àe8 35.$àh2 &àd7 36.&àc4valuable during a game and will influence the $àd8! Notice Petrosian's unhurried play withmind of both players at the time.his king which is on its way to the optimal17.'àd2 Bukic declined to test his opponent square at b7.37.(àg3 g6 38.(àe4and is now in effect playing for a win, but as a Black has a weak square on f6, but it's of noconsequence has put more psychological significance.$àc8! An extraordinary movepressure on himself.typical of Petrosian.He was never afraid of(àe7 18.&àac1 EXERCISE: Can you suggest activating his king.Just remember his famousa reasonable move and plan for Black? game against Kasparov (Game 57).When hisANSWER: 'àc6 Petrosian follows moves really deserves an exclamation mark,Nimzowitsch's principle and uses the central Petrosian himself keeps silent.d5-square as a pivot for manoeuvring his 39.(àd6+ $àb8 EXERCISE: How shouldpieces.Ideally he wants to exchange the light- Black continue after 40 Nxf7?squared bishops with.Bb5 and then place 40.(àe4the pair of knights at d5 and f5.[ ANSWER: 40.(àxf7 should be answered19.'àe3 (àbd5 20.'àf2 'àb5 21.(àg3?! by $àb7 41.(àh6 &àf8 42.$àg3 (àf4[ 21.'àe4 refrains from the exchange, but and Black has more than enoughallows an active bishop on the diagonal a6- compensation for the pawn.White's knightf1.Still this is the more logical option is offside and Black is dominant on thebecause the exchange is only desirable for light squares like d3 and d5.]Black for the positional purpose of 40.$àb7 41.&à4c2 (àf5 42.$àh1 &àad8increasing his control of the light squares.] 43.&àd2 &àc8 44.$àh2 (àde7 45.(àf6 &àdd821.'àxd3 22.%àxd3 0-0 Now the position is 46.(àe4 (àc6 47.&àcd1?equal with a favourable trend for Black.White [ 47.&àc4 with the idea of (àa5 48.&àc3 is a better try, not allowing Black's other (calculation): What is the problem with 8.knight too much influence on the light Nxd5?squares.] [ ANSWER: 8.(àxd5 fails to 9.(àxe5! (àxe547.(àa5! In his famous book My System 10.'àxd5 'àxe2 11.%àxe2! ( if 11.'àxf7+ $àxf7Nimzowitsch wrote about the importance of 12.%àxe2 &àe8 and Black has someexploiting reflex weaknesses, such as c4 and development lead to compensate for theb3 in this kind of position, when dealing with price of a pawn ) 11.%àxd5 12.(àc3 %àe6an isolani.The problem with the isolani is not 13.%àb5+ %àc6 14.'àf4 f6 15.&àac1really the weakness of the pawn itself, it's with a clear advantage.]rather the light squares surrounding it.9.(àc3 %àxd1 10.&àxd1 h6 This limits the48.&àc2 (àb3! 49.&àc4 EXERCISE: Black has scope of the bishop on c1.Sosonko hadestablished two strong knights putting employed this variation before and managedpressure on the backward d-pawn.How can to equalize.11.(àa4 'àe7 12.'àe3 e4?!he now decide the game? [ The simple 12.0-0 is a better decision,ANSWER: c5 It's all over.50.&àd3 (àbxd4 even though Black has a tough call to51.b4 (àc6 52.&àxd8 &àxd8 53.bxc5 (àxe5 decide where to move the bishop to after54.&àc3 &àd3 55.&àxd3 (àxd3 56.cxb6 (àxf2 White asks the question with 13.h3.]57.(àxf2 $àxb6 58.$àh3 $àb5 59.(àd3 $àa4 13.(àd4 (àxd4 QUESTION: Which piece60.(àe5 $àxa3 61.(àxf7 a5 62.(àe5 a4 should White recapture with?63.(àxg6 $àb3.An excellent game by 14.&àxd4!Petrosian showing the disadvantages of a [ ANSWER: Imprecise is the recapture withweak d-pawn when too many pieces have the bishop.After 14.'àxd4 'àxe2 15.&àe1been exchanged.'àd3 16.(àc3 0-0 17.(àxe4 (àxe4 18.'àxe40-1 'àb4! Black is very close an equal game.It'sbetter to activate the rook on the open filewhile recapturing.]D02 14.'àxe2 15.(àc3 'àf3 16.(àxe4 'àxg2Petrosian,T 17.$àxg2 0-0 EXERCISE: What is White'sSosonko,G best continuation?55: Las Palmas 1980 18.&àad1[Thomas Engqvist] [ ANSWER: Geller recommends 18.(àd6immediately, with the idea that after 'àxd6The international tournament in Las Palmas in ( of course, 18
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