[Event "It (open)"] [Site "masterchessopen.com - Biel (Switzerland)"] [Round "9"] [White "Kosteniuk Alexandra (RUS)"] [Black "Derieux Christian (FRA)"] [Result "1-0"] [WhiteElo "2508"] [BlackElo "2159"] [ECO "A65"] [Opening "Benoni: 6.e4"] { Derieux Christian (FRA) +0 =0 -1 } 1.d4 { 1 } 1...Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.O-O Re8 10.Nd2 Nbd7 11.a4 Ne5 { ?/= } 12.Ra3 g5 ( 12...Qe7 13.Qc2 Nh5 14.Bxh5 gxh5 15.Nd1 Bd7 16.Ne3 Rad8 17.Nf5 Bxf5 18.exf5 Ng4 19.h3 Nf6 20.Nc4 Qe4 21.Qxe4 Rxe4 22.Na5 Rd7 23.Rd1 Nxd5 24.Rxd5 Re1+ 25.Kh2 Rxc1 26.Rb3 h4 27.Rxb7 Rxb7 28.Nxb7 Be5+ 29.g3 Rc2 30.Kg1 hxg3 31.fxg3 Rxb2 32.Nxd6 { ...0-1, Szymczak Zbigniew 2420 - Ornstein Axel 2450 , Oslo 1983 It (open) } ) 13.Qc2 { } 13...h6 { N } ( 13...g4 14.Nd1 ( 14.Re1 Nh5 15.Bb5 Rf8 16.Nf1 f5 17.Ng3 Nxg3 18.hxg3 Ng6 19.exf5 Bxf5 20.Bd3 Bxd3 21.Qxd3 Ne5 22.Qe2 Qd7 23.Be3 Rae8 24.Raa1 Qf5 25.Nb5 Qd7 26.Nc3 a6 27.a5 Qf5 28.Ra4 c4 29.Rd1 Bh6 30.Bxh6 Nf3+ 31.gxf3 Rxe2 32.Nxe2 Rf6 33.Rxc4 { ...1/2-1/2, Banusz Tamas 2255 - Schneider Attila 2302 , Budapest 2002 It (cat.1) } ) 14...Nh5 15.Ne3 Nf4 16.Bd1 b6 17.Ndc4 Nxc4 18.Nxc4 Ng6 19.Ne3 Qe7 20.Nf5 Qxe4 21.Re3 Bxf5 22.Rxe4 Bxe4 23.Qb3 c4 24.Qb4 Bd3 25.Bxg4 Ne5 26.Rd1 Nxg4 27.h3 Ne5 28.Be3 Ng6 29.b3 Bc2 30.bxc4 Bxd1 31.Qxd6 Bxa4 32.g3 Rac8 33.Qb4 { ...0-1, Antunac Goran 2435 - Gruenfeld Yehuda 2515 , New York 1981 } ) ( 13...a6 14.Nd1 ( 14.Re1 Bd7 15.a5 h6 16.b3 Rc8 17.Bb2 g4 18.Nd1 Nh5 19.Ne3 Nf4 20.Bxe5 Nxe2+ 21.Rxe2 Bxe5 22.Ndc4 Bf4 23.Nb6 Rc7 24.Nxd7 Bxe3 25.Rxe3 Rxd7 26.h3 h5 27.Ra4 Re5 28.hxg4 hxg4 29.Qd1 Qh4 30.Rg3 Kf8 31.Qxg4 Qxg4 32.Rxg4 f5 33.Rg5 { ...1-0, Hansen Curt 2600 - Nielsen Peter Heine 2515 , Esbjerg 1997 Ch Denmark } ) 14...Ng6 15.Ne3 Nf4 16.Bd1 b6 17.f3 Rb8 18.g3 Ng6 19.Ndc4 h6 20.Bd2 Ne5 21.Nxe5 Rxe5 22.b4 Bh3 23.Rf2 cxb4 24.Bxb4 Rc8 25.Rc3 Re8 26.g4 Rxc3 27.Bxc3 h5 28.Nf5 Bf8 29.Qd2 Nd7 30.Ng3 h4 31.Nh5 Bh6 32.Be2 Qc8 33.Bd4 { ...0-1, Spraggett Kevin 2525 - Barlov Dragan 2555 , New York 1987 It (open) } ) ( 13...Qe7 14.Re1 ( 14.a5 h6 15.Nd1 Bd7 16.Nc3 Rf8 17.Bb5 Bc8 18.Nd1 Nh5 19.Ne3 a6 20.Be2 Nf4 21.Bd1 f5 22.exf5 Qf7 23.Ne4 Rd8 24.g4 Nxd5 25.Nxd5 Qxd5 26.h4 b5 27.hxg5 hxg5 28.Bxg5 Bb7 29.Bxd8 Rxd8 30.Re3 Nc4 31.Ree1 Qd4 32.b3 Ne5 33.Qd2 { ...1-0, Gelfand Boris 2713 - Hall Jesper 2476 , Malme 1999 It (cat.16) } ) 14...Nfg4 15.Nf1 Ng6 16.Qd1 Nh6 17.Ng3 a6 18.Be3 f5 19.exf5 Nxf5 20.Nxf5 Bxf5 21.Qd2 h6 22.Raa1 Qf6 23.Bd3 Ne5 24.Be2 Qg6 25.f3 g4 26.fxg4 Bxg4 27.Kh1 Bxe2 28.Qxe2 Nd3 29.Rf1 Nxb2 30.Rf3 Qd3 31.Qxd3 Nxd3 32.Bd2 Ne5 33.Rg3 { ...0-1, Najdorf Miguel 2510 - Timman Jan H 2600 , Bugojno 1982 It (cat.14) } ) ( 13...Nfd7 14.Nd1 Nf8 15.f3 ( 15.Bb5 Re7 16.Ne3 a6 17.Be2 Re8 18.Ndc4 Nfg6 19.Nxe5 Nxe5 20.Nc4 h6 21.Nxe5 Bxe5 22.f4 Bd4+ 23.Kh1 f6 24.e5 Re7 25.e6 Rg7 26.Rh3 b5 27.Rxh6 g4 28.Bxg4 Bb7 29.Qf5 Qe7 30.Rf3 Rh7 31.Rfh3 Rxh6 32.Rxh6 Qc7 33.Rg6+ { ...1-0, Anapolsky Sergey 2455 - Kotsur Pavel 2425 , Alma-Ata 1991 Ch URS (juniors) } ) 15...Nfg6 16.g3 Kh8 17.Ne3 h5 18.Nf5 h4 19.Nxg7 Kxg7 20.Rf2 hxg3 21.hxg3 Rh8 22.Nf1 Rh3 23.Rg2 Qh8 24.Nh2 f6 25.f4 Nf7 26.Rf3 Bd7 27.b3 Rg8 28.Bb2 gxf4 29.gxf4 Kf8 30.f5 Nf4 31.Rxf4 Rxg2+ 32.Kxg2 Rxh2+ 33.Kf1 { ...0-1, Sigulski - Suba Mihai 2580 , Bela Crkva 1986 It (open) } ) ( 13...Rb8 14.f3 a6 15.Nc4 Nxc4 16.Bxc4 Nd7 17.g3 Ne5 18.Be2 Bh3 19.Rf2 Ng6 20.Be3 f5 21.f4 gxf4 22.gxf4 fxe4 23.Kh1 Qe7 24.Ra1 Nh4 25.Rg1 Nf5 26.Nd1 Qh4 { 0-1, Riksen J - Turin W, Netherlands 1989 corr. } ) ( 13...Nfg4 14.Nd1 Ng6 15.Bxg4 Bxg4 16.Ne3 Bd7 17.Ndc4 Qe7 18.f3 h5 19.Bd2 g4 20.fxg4 hxg4 21.Bc3 Bxc3 22.Rxc3 Ne5 23.Qf2 Nxc4 24.Nxc4 f6 25.Rg3 Rad8 26.h3 Bc8 27.Ne3 Kf7 28.hxg4 Rg8 29.g5 Rg6 30.Qf4 Qe5 31.Qxe5 dxe5 32.Nc4 { 1-0, Portisch Lajos 2630 - Winants Luc 2465 , Brussels 1988 It "S.W.I.F.T. World Cup" } ) ( 13...Ng6 14.Nc4 Ng4 15.Bxg4 Bxg4 16.Nb5 Be5 17.Nxe5 Rxe5 18.Rg3 f5 19.f4 gxf4 20.Bxf4 Nxf4 21.Rxf4 Kh8 22.exf5 Bh5 23.Qc3 Qf6 24.Nxd6 Rf8 25.Ne4 Rxe4 26.Rxe4 Qxc3 27.Rxc3 Rxf5 28.Rxc5 Bf7 29.Rd4 Kg7 30.Rc7 Kf6 31.d6 Bd5 32.Rc5 Bb3 { 1-0, Mambrini Augusto 2200 - Guido Flavio 2300 , Montecatini Terme 1994 } ) ( 13...Kh8 14.Nc4 Nfg4 15.Nxe5 Nxe5 16.f4 gxf4 17.Bxf4 a6 18.Qd2 Bf6 19.Kh1 Rb8 20.h3 Ng6 21.Bh6 Rg8 22.Nd1 Ne5 23.Nf2 Bd7 24.Bf4 Qe7 25.a5 Ng6 26.Bh2 Be5 27.Bxe5+ Nxe5 28.Nd3 Ng6 29.Qc3+ Rg7 30.Qf6 Qxe4 31.Qxd6 Rbg8 32.Bf3 Qe8 33.Nxc5 { ...1-0, Timoscenko Gennadij 2500 - Lobron Eric 2585 , Moscow 1989 Cup World (open) } ) 14.Nd1 Nh7 15.Ne3 Nf8 16.Re1 Nfg6 17.Ndf1 Nh4 18.Ng3 Re7 19.Qd1 Qf8 20.Nh5 f5 21.g3 Nhg6 { ?! } ( 21...f4 { !? } 22.gxh4 fxe3 23.Rxe3 g4 { } ) 22.f4 gxf4 23.gxf4 Nxf4 { ? } ( { ? } 23...Ng4 24.Nxg4 fxg4 25.Bxg4 Bd4+ { } ) 24.Nxf4 fxe4 25.Nc4 Nxc4 { ?! } ( 25...e3 { !? } 26.Rxe3 Nxc4 27.Rxe7 Nxb2 { } ) 26.Bxc4 { ?! } ( 26.Ng6 { !? } 26...Nxb2 27.Bxb2 Bxb2 28.Rg3 { } ) 26...Bd4+ 27.Kh1 Rg7 28.Qe2 Bf5 { ?! } ( 28...e3 { !? } 29.Ne6 Bxe6 30.dxe6 Qf5 { } ) 29.Ne6 Bxe6 30.dxe6 Qf5 31.Bxh6 Rg6 32.e7+ d5 33.Bb5 Kf7 34.Rf3 Rg1+ 35.Rxg1 Qxf3+ 36.Qxf3+ { } {#r} 1-0