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.For example, if 22.Bg2, thenGM Paul Keres22.h4 23.g4 Ng6 and Black will gain aCandidates Yugoslavia 1959dominant square for his Knight.22.Kd7!l.e4 c6 2.Nc3 d5 3.N Bg4 4.h322.Rxa5 gives White too much ac.Bx 5.Qx Nf6 6.d3 e6 7.g3tivity after 23.Rhbl.For example,Bb4 8.Bd2 d4 9.Nbl Qb6 10.b323.b5 24.a4.Nbd7 ll.Bg2 aS 12.a3 Bxd2 +An i mprovement over 12.e?,played in the last game.Now h1te sleft with a Bishop trapped behmd h1sown pawns.This will be an important51 23.Rhb1 Kc7 24.Rb4 Rxa5 45.dxc4Unfortunately for White, the Rook If 45.Rg3, then 45.Rhl + 46.Ke2 c3gets trapped on 25.Rxd4 c5.Now his followed by 47.Rcl winning.position will be difficult to hold.45.Nxc4 46.Rg7 Kd6 47.Rx25.Bg2Ne3 + 48.Kc1 Rxc2 + 49.Kb1Threatening 26.f4.Rh2 50.Rd7 + Ke5 51.Re7 +25.g5 ! 26.f4 gxf4 27.gxf4 Ng6Kf4 52.Rd7 Nd1 ! 53.Kc128.KIf 53.Rxd4, then 53.Nc3 + wins.If 28.Rxd4, then.Nxf4 + 29.Kf254.Nc3 54.Bh7 h4 55.Rf7 +e5 is good for Black.Ke3 0-128.Rg8 29.Bfl e5A positional masterpiece by KeresNow Bl ack's Knight will gain aand an excellent demonstration of thedominant square.advantage of the Knight over the3 0.fx e 5 N x e 5 + 3 1.K e 2 c 5Bishop in a closed position.32.Rb3 b6 33.Rab1 Rg6 34.h4Trying to get some activity for hisPa 7pieces, especially the Bishop.However,this move involves a pawn sacrifice.l.e4 c6 2.c4 dS 3.exd5 cxdS 4.cxd534.Ra6 35.Bh3 Rg3 36.Bf1Nf6Rg4 37.Bh3 Rxh4 38.Rh 1 Ra839.Rbb1 Rg8Not 39.Rxa3 due to 40.Bf5 withcounterplay.40.R bf1 Rg3 41.Bf5 Rg2 +42.Kd1 Rhh2 43.Rxh2 Rxh244.Rg1 c4 !Creating targets for the Knight.52 23.Bxd5 24.Rfc1 gxh3 25.gxh3I ustrative Game 16Rg8 + 26.Kf2 Rg2 + 27.Ke3IM Ilya GurevichRh2 28.Ng1 Kd7GM Jonathan SpeelmanBringing the other Rook into playLondon 1992leaves White without a defense.l.e4 c6 2.c4 d5 3.exd5 cxd54.c xd5 Nf6 5.Bb 5 + Nbd76.Nc3 a6 7.Qa4 Rb8 8.Bxd7 +Qxd7 9.Qb3?!Better i s 9.Qxd7 + Bxd7 10.Nge2 asin the next game.If 9.Qf4, then 9.Ra8is fine for Black.9.b5 10.Nge2 Bb7 11.Nf4Forcing Bl ack to weaken hisKingside if he wants to i mmediately winback the pawn.29.Be1 Rg8 30.B Rgg2 31.Rc2e5Sacrificing a pawn to activate theBishop is decisive.32.RflIf 32.fxe5, then 32.Bg5 + or if32.dxe5, then 32.Rxf2 33.Rxf2 Bc5 +.winning.32.exf4 + 33.Kxf4 Be4 34.Re2Bg5 + 0-1If 35.Ke5, then 35.Bd3.ll.g5 ! 12.Nfe2 Nxd5 13.Nxd5Qxd5 14.Qg3 Rd8 15.0-0 h5 !Black's attack is so strong that hedoes not need to find protection for hisKing.16.h3 h4 17.Qg4 b4Whi te is fi ndi ng it di fficult todevelop his pieces.18.d4 f6 19.e6 20.Bd2 Be7Forcing White to loosen his Kingsideas 21.f5 is threatened.21.f4 f5 22.Q g4 23.Qxd5If 23.hxg4, then 23.fxg4 24.Qxg4 h325.gxh3 Kd7 followed by 26.Rdg8 isstrong.Therefore, White chooses toexchange Queens.However, Black isalso superior in the endgame.53 Black often pressures White's weakLesson 3c4-pawn in this opening.A Defense to 1.d4:The Nimzo- andBogo-l ndianDefenses.After l.d4 Nf6 2.c4 e6 and then oneither 3.Nc3 or 3.Nf3, Bl ack plays3.Bb4.Black has quickly developedhis Kingside pieces and fights for control of the important e4-square.Illustrative Game 1 21.Bg3 cxd4 22.cxd4 exd4NM Izhak Aloni 23.Bxd6 Qe3 + 24.Qxe3 dxe3GM Robert Fischer 25.Re l Bxc4 26.Rxe3 Bxa2Nathanya 196827.e5 Be6 28.Rel Nb3 29.Ba6Nc 5 30.Be 2 aS 3 l.Bc7 a4l.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e332.Bxb6 Nb 3 33.Bdl ReSb6 5.Bd3 Bb7 6.N Ne4 7.Qc234.K N cl 35.Re3 Rb8 36.Bc5srRb2 + 37.Kg3 Nb3 38.Bd6 Nd4Keeping control of the e4-square39.Bg4 Bxg4 40.Kxg4 Rxg2 +and starting a Kingside attack.41.Kh3 Rgl 42.e6 Nf5 43.Rd3g5 44.Bg3 h5 0-1There is no defense to 45.g4 +.Illustrative Game 2GM Evgeny BareevIM Lazslo ZsinkaNaestved 1988l.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3b6 S.Nge2 N e4Although 5.Ba6 is a more commonmove here, Bobby Fischer recom8.0-0 Bxc3 9.bxc3 0-0 IO.Nd2mended this move in his classic My 60Qh4 ll.Nxd2 12.Bxd2 N c6Memorable Games.With the t ext,13.Rael Na5Bl ack threatens to doubl e White'sBlack switches his attention topawns, and also to play.f5 and moveWhite's weakened Queenside.his Queen to the kingside.14.Rbl d6 IS.Bel Qg5 16.Qe26.Qc2e5 17.e4 fxe4 18.fxe4 Rxfl +A voids doubled pawns and fights for19.fl c5 20.Kgl Ba6 control of the e4-square.Bad is 6.a354 due to 6.Qh4! 7.g3 Qf6 8.f4 Bxc3 + been a favorite of mine.Though othersand Black is better.have adopted my weapon, this was thefirst time I had to face it myself.6.Bb7 7.Ng3?!5.c5Better is 7.a3.After 7.Bxc3 +8.Nxc3 White has a slight advantage.Among the wide range of alternatives: 5.a5, 5.Ba5 and 5.Qe7, the7.Qh4 8.Bd3 f5 9.0-0 Bxc3text seems the most consequent.10.bxc3 0-0 ll.Ne26.Bg5! ?In order to play f3.I prefer 6.a3 BaS before playing thell.Rf6 12.Bxe4??text.Now Black has the possibility ofCorrect is 12.f3.After 12.Rh66.Nc6! ? 7.d5 Na5 8.Qc2 Nxc4 9.e413.h3 (13.fxe4 fxe4) 13.Ng5 14.Nf4 orNxb2 10.Qxb2 Nxe4 ll.Bd2 or the im13.g5 14.Bd2 followed by 15.Bel givesmediate 10.Bd2, but White holds an adWhite reasonable chances.vantage.Because of the defense Bg5-12.Bxe4 13.Qdld2, the try 6.h6 7.Bh4 and then13.Qd2 would have held out longer,7.Nc6, attempting to use the aSal though Bl ack is wi nni ng aftersquare, deserves attention.13.Rh6.6.Bb7 7 [ Pobierz całość w formacie PDF ]