[Event "Memorial Stepanov (open)"] [Site "masterchessopen.com Krasnodar (Russia)"] [Round "3"] [White "Rjabzev Konstantin (RUS)"] [Black "Piskunov Yury (RUS)"] [Result "1-0"] [WhiteElo "2315"] [BlackElo "2311"] [ECO "B27"] [Opening "Sicilian: Hungarian, 3.d4 cxd4"] { } 1.e4 c5 2.Nf3 g6 3.d4 cxd4 4.Nxd4 Bg7 5.c4 Nc6 6.Be3 Nf6 7.Nc3 Ng4 8.Qxg4 Nxd4 9.Qd1 Ne6 10.Rc1 Qa5 11.Be2 { ?/= } 11...g5 ( 11...b6 12.O-O Bb7 13.f3 g5 14.Rf2 h5 15.Bf1 Qe5 16.Rd2 d6 17.Nd5 Kf8 18.b4 Bh6 19.Qb3 g4 20.Bxh6+ Rxh6 21.Qe3 { ...1/2-1/2, Short Nigel D(2665) - Larsen Bent(2560), Hastings 1988 It (cat.13) } ) 12.O-O ( 12.Qd2 b6 13.O-O Bb7 14.f3 h5 15.Rfd1 d6 16.a3 Qe5 17.b4 Kf8 18.Nb5 Bf6 19.Nc3 h4 20.Bf1 Rg8 21.Nd5 Bh8 { ...0-1, Cebalo Miso(2485) - Mohr Georg(2450), Cetinje 1990 Ch Yugoslavia (team) } ) 12...b6 { +0,27 CAP N } ( 12...Qe5 13.Rc2 ( 13.Bg4 b6 14.Bf5 h5 15.Nb5 Bb7 16.Re1 Qb8 17.Qd2 Be5 18.g3 g4 19.Rcd1 Bc6 20.Bxe6 dxe6 21.Bd4 Bxb5 22.cxb5 { ...1/2-1/2, Clemance Philip A(2355) - Taylor Gordon(2325), Saint John 1988 It (open) } ) 13...h5 14.Rd2 Qb8 15.Nd5 Be5 16.h4 g4 17.Qa4 b6 18.Rfd1 Nc5 19.Qc2 e6 20.Nc3 g3 21.b4 Nb7 22.c5 { ...1/2-1/2, Staniszewski Piotr(2420) - Dzieniszewski Andrzej(2325), Bydgoszcz 1990 Ch Poland (team) } ) ( 12...d6 13.Nd5 Bxb2 14.Rc2 Bg7 15.Bh5 Qd8 16.f4 gxf4 17.Bxf7+ Kxf7 18.Qh5+ Kg8 19.Rcf2 Bf6 20.Bxf4 Ng7 21.Nxf6+ exf6 22.Qh4 { ...1-0, Aumann Welf(2311) - Arkell Keith C(2462), Hastings 1999 It (open) } ) ( 12...Kf8 13.f3 d6 14.Rf2 h5 15.Bf1 Be5 16.Nd5 Nf4 17.c5 Be6 18.cxd6 Bxd6 19.b4 Qd8 20.Bd4 Rg8 21.Be3 Bxd5 22.exd5 { ...0-1, Koglin Anke(2195) - Buervenich Silvia(2165), Germany 1996 Cup Germany (team) (w) } ) 13.Nd5 Bb7 14.Bg4 Rc8 15.b4 Qxa2 { } ( 15...Qa3 { !? } 16.Qd2 h6 17.Rfd1 Rd8 { } ) 16.c5 { ? } ( 16.Bxg5 { ! } 16...h6 17.Bh4 h5 18.Bf5 { } ) 16...bxc5 17.bxc5 h6 18.Bxe6 fxe6 19.Qh5+ Kd8 { ? } ( 19...Kf8 { ! } 20.Qf3+ Ke8 21.Qh5+ Kf8 { } ) 20.Qf7 exd5 21.Qxg7 Kc7 { ?? } ( 21...Re8 { !? } 22.Ra1 Qc4 23.Bd2 Rxc5 { } ) 22.Qe5+ Kc6 23.Qxe7 Kc7 24.Qe5+ Kc6 25.Qd6+ { } {#r} 1-0