[Event "It (open)"] [Site "masterchessopen.com Biel (Switzerland)"] [Round "3"] [White "Kosteniuk Alexandra (RUS)"] [Black "Dvoirys Semen I (RUS)"] [Result "1-0"] [WhiteElo "2508"] [BlackElo "2615"] [ECO "B90"] [Opening "Sicilian: Najdorf"] { Kosteniuk Alexandra (RUS) +1 =0 -1 Dvoirys Semen I (RUS) +1 =0 -1 Kosteniuk Alexandra (RUS) +1 =0 -1 Dvoirys Semen I (RUS) +1 =0 -1 } 1.e4 { 1 } 1...c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 ( 8.Nb3 Be7 9.Qf3 Nbd7 10.O-O-O Qc7 11.g4 b5 12.Bxf6 Nxf6 13.g5 Nd7 14.h4 b4 15.Ne2 Bb7 16.Bh3 d5 17.f5 Rc8 18.c3 dxe4 19.Qe3 Bc5 20.Nxc5 Nxc5 21.fxe6 fxe6 22.Rhf1 Rf8 23.Bg4 Rxf1 24.Rxf1 Qa5 25.Qd4 Qxa2 26.Kc2 e3 27.Bh5+ g6 { ...0-1, Kosteniuk Alexandra 2455 - Zhu Chen 2497 , Moscow 2001 Ch World FIDE (KO-system) (w) } ) 8...Qxb2 9.Nb3 Qa3 10.Bxf6 gxf6 11.Be2 h5 12.O-O Nc6 13.Kh1 ( 13.f5 Bd7 14.fxe6 fxe6 15.Rxf6 O-O-O 16.Rd1 Bg7 17.Rf3 Be5 18.Kh1 h4 19.Qe3 Rdf8 20.Rb1 Qb4 21.Rh3 Rf4 22.Nd2 Qd4 23.Nc4 Kc7 24.Qc1 Qf2 25.Nxe5 Nxe5 26.Qg1 Qc5 27.Qxc5+ dxc5 28.g3 Rf7 29.gxh4 b5 30.a3 Ng6 31.h5 Nf4 32.Rf1 Kd6 { ...0-1, Roos Louis 2370 - Ribli Zoltan 2590 , Baden-Baden 1981 It (cat.9) } ) ( 13.Rf3 Na5 14.Rc1 Bd7 15.Nb1 Nxb3 16.cxb3 Qxc1+ 17.Qxc1 Bc6 18.Rc3 Kd7 19.Nd2 Be7 20.Nc4 Bd8 21.Bf3 Ke7 22.Nxd6 Kxd6 23.e5+ Ke7 24.Rxc6 { 1-0, Rojas Andres - Cuartas Carlos 2307 , Medellin 2001 Ch Colombia } ) ( 13.f5 Bd7 14.fxe6 fxe6 15.Rxf6 O-O-O 16.Rd1 Bg7 17.Rf3 Be5 18.Kh1 h4 19.Qe3 Rdf8 20.Rb1 Qb4 21.Rh3 Rf4 22.Nd2 Qd4 23.Nc4 Kc7 24.Qc1 Qf2 25.Nxe5 Nxe5 26.Qg1 Qc5 27.Qxc5+ dxc5 28.g3 Rf7 29.gxh4 b5 30.a3 Ng6 31.h5 Nf4 32.Rf1 Kd6 { ...0-1, Roos Louis 2370 - Ribli Zoltan 2590 , Baden-Baden 1981 It (cat.9) } ) 13...Bd7 { = } 14.Nd1 ( 14.f5 Be7 15.fxe6 fxe6 16.Rab1 Ne5 { +0,00 CAP } ) 14...Qb4 { -0,42 CAP } ( 14...Rc8 15.Ne3 Qb4 16.c3 Qxe4 17.Bd3 Qa4 18.Nc4 Rc7 19.Nb6 Qa3 20.Rae1 Ne7 21.Nc4 Rxc4 22.Bxc4 h4 23.Bd3 f5 24.Be2 Bg7 25.c4 h3 26.g3 d5 27.Bf3 dxc4 28.Re3 c3 29.Rxc3 Bxc3 30.Qxc3 O-O 31.Rg1 Rc8 32.Qf6 Bc6 33.Bxc6 Rxc6 34.g4 { ...0-1, Short Nigel D 2655 - Kasparov Garry 2805 , London 1993 Ch World (match) (PCA) } ) 15.Qe3 d5 { N ?! } ( 15...Ne7 { !? } 16.a3 Qa4 17.f5 e5 ( 17...Bh6 { } ) 18.Nb2 Qc6 19.c4 h4 20.Rf3 Bh6 21.Qd3 Nc8 22.a4 a5 23.Nd1 Nb6 24.Nc3 Qc7 25.Rff1 Ke7 26.Rfd1 Bc6 27.Ra2 Rhc8 28.Rb1 Nd7 29.Qf3 b6 30.Rc2 Qd8 31.c5 bxc5 32.Qh5 Qf8 33.Bb5 Nb6 34.Nd2 Bxd2 35.Rxd2 { ...1-0, Platonov Igor V 2470 - Bukhover, Kiev 1963 } ) 16.exd5 Ne7 17.c4 Nf5 18.Qf3 exd5 19.Ne3 dxc4 { ?! } ( 19...Nxe3 { !? } 20.Qxe3+ Qe7 21.Qg1 Qd6 { } ) 20.Nd5 Qd6 { ? } ( 20...Bc6 { ! } 21.Nxf6+ Kd8 22.Qh3 Nd6 { } ) 21.Na5 { ! } ( 21.Nd2 { ? } 21...O-O-O 22.Nxc4 Qe6 23.Ncb6+ { } ) 21...h4 { ?! } ( 21...Ne7 { !? } 22.Bxc4 Rb8 23.Rfe1 Bg4 { } ) 22.Nxb7 Qc6 23.Qe4+ Ne7 24.Nd6+ { ?! } ( 24.Rfd1 { !? } 24...Rc8 25.Rac1 f5 26.Qe5 { } ) 24...Qxd6 25.Nxe7 { } {#r} 1-0