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Zhang Xiaowen vs Nana Dzagnidze
Yinzhou Cup Women World Teams (2009), Ningbo CHN, rd 2, Sep-03
Sicilian Defense: Najdorf Variation (B90)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Sep-07-09  rangek: Seems like incredible vision from Black to sacrifice the exchange on move 23, creating serious dark-square weakness around the White king
Sep-15-09  DiscoJew: I love this kind of black win in the Sicilian...That dark squared B can really get powerful
Sep-16-09  zatara: You got to be really advanced in chess to be able to play something like this..I really loved it..
Nov-01-09
Premium Chessgames Member
  Artar1: A fascinating game, but White missed some important opportunities.

<1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.a4 e5 7.Nf3 Qc7 8.Be3 h6 9.Be2 Be7 10.00 Be6 11.a5 Qc6 12.Nd2 Nbd7 13.Bf3 00 14.Re1 Rac8 15.Nf1 Rfd8 16.Re2> (Why not Ng3?) <16...Bf8 17.Rd2 Qc7 18.h3 Qb8 19.Na4 Nc5 20.Ng3 Nxa4 21.Rxa4 g6 22.b3 Rc3 23.Ne2 Rxe3>


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Fritz sees the exchange sacrifice and rates it as Black's best move. However, the evaluation is still in White's favor.

<24.fxe3 Qa7 25.Kf2>

Also worth a try is <25.Rd3> Now if <25...h5 26.Qe1 Rc8 27.Nc3 Bh6 28.Ra2 g5 29.g4 hxg4 30.Bxg4 Qc5 (30...Nxg4 31.hxg4 Bxg4 32.Nd5 Kf8 33.Qf2> Makes Black's position vulnerable to attack.) <31.Nd5 Nxd5 32.exd5 Bxg4 33.hxg4> White's position not only holds but gives the first player a potentially winning endgame.


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<25...h5 26.Nc3 Rc8 27.Nd5 Bxd5 28.exd5 Bh6 29.Qe2 Nd7 30.g4 hxg4 31.hxg4 Bg5 32.Rd1 Kg7 33.Raa1>

<33.Qd2> May be worth a try; it discourages ...e4 and ...Rc3.

<33...e4 34.Bg2?>

A passive move that hands the initiative to Black. Better is <34.Bxe4 Rc3 35.Rd3 (35.Bd3 Nf6 36.Re1 Nxd5 37.Qf3 Qc5 38.Re2 Nf4 39.Rd2 Nd5 40.Re2=) 35...Nc5 36.Kf3 Nxd3 37.Bxd3 Qc5 38.e4=>


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<34...Rc3 35.Kf1 Rxe3 36.Qf2>

Another way to win is <36.Qc4 Bf6 (36...Ne5 37.Qd4=) 37.Ra4 Be5 38.g5 Nc5 39.Ra2 b5!> Clears the way for ...Qd7 followed by ...Qf5+ or ...Qg4. <40.axb6 Qd7 41.b4 Qf5+ 42.Kg1 Qg4 43.Qf1 Qh5 44.c4 Bh2+ 45.Kh1 Bf4+ 46.Kg1 Qh2+ 47.Kf2 Qg3+ 48.Kg1 Rf3 49.Qxf3 exf3 50.bxc5 fxg2 51.Rxg2 Be3+ 52.Kf1 Qf3+ 53.Ke1 Qxg2 01>

<36...Ne5> Also interesting is <36...Nf6!> Followed by either ...Qc5 or ...Nxg4 depending upon White's response. For example, <37.Bh1 Qc5 38.Ra4 Nxg4 39.Qd2 Rd3 40.cxd3 Bxd2 41.Rxd2 Qe3 42.Raa2 exd3 43.Kg2> Black will go on to win.

<37.Bxe4 Nxg4 38.Qg1 f5 39.Bh1 Bf4 40.Rd2 Qc5 41.c4?>

<41.Re2> Was better but White is still losing. <41...Qb5 42.Rae1 Rh3 43.Qd4+ Be5 44.Qc4 Qxa5!? 45.Bg2 Rc3 46.Qa4 Qc5 47.Ra1> The White queen is out of play and is in danger of being trapped. <47...Bh2 48.Ke1 Bg3+ 49.Kd1 Ne3+> Checkmate is unavoidable. <50.Rxe3 Qxe3 01>

<41...Qb4> The game is hopeless for White, for example: 42.Qg2 Qxb3 43.Re1 Qxc4+ 44.Qe2 Rxe2 45.Rdxe2 Be5 46.Bf3 Qf4 47.Rf2 Nxf2 48.Rxe5 Qxf3 49.Re7+ Kf8 50.Ke1 Kxe7 51.Kd2 Ne4+ 52.Kc1 Qc3+ 53.Kb1 Nd2+ 54.Ka2 Qb3+ 55.Ka1 Qa3#

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