[Event "It (open) \"] [Site "masterchessopen.com – Moscow (Russia)"] [Date "2005.02.15"] [Round "1"] [White "Sadvakasov Darmen (KAZ)"] [Black "Ivanov Sergey_ (RUS)"] [Result "1-0"] [WhiteElo "2612"] [BlackElo "2538"] [ECO "B33"] [Opening "Sicilian: Open, 2...Nc6"] { Ivanov Sergey_ (RUS) +2 =1 -2 } 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O O-O 9.f4 h6 10.Bh4 Bd7 11.Nf3 { ? } ( 11.Ndb5 Nxe4 12.Bxe7 Nxd2 13.Bxd8 Nxf1 14.Rhxf1 Rfxd8 15.Nxd6 Rab8 16.Rd2 Ne7 17.Rfd1 Bc6 18.a4 Kf8 19.b3 Nd5 20.Ndb5 a6 21.Nc7 Rd7 22.N7xd5 exd5 23.Nxd5 Rbd8 24.Ne3 Rxd2 25.Rxd2 Re8 26.Nf5 g6 27.Nd4 Re1+ 28.Kb2 Be4 29.g3 Ke7 30.Kc3 f5 { ...1-0, Matanovic Aleksandar 2505 - Timman Jan H 2585 , Yugoslavia 1978 } ) 11...Qa5 12.Kb1 Rfd8 ( 12...Rfc8 13.g4 b5 14.Bd3 Nb4 15.a3 Nxd3 16.Nd5 Qxd2 17.Nxe7+ Kf8 18.Rxd2 Kxe7 19.Rxd3 e5 20.fxe5 dxe5 21.Nxe5 Be6 22.Rf1 g5 23.Be1 a5 24.Rd4 Nxg4 25.Nxg4 Bxg4 26.Rd5 Rd8 27.Re5+ Kf8 28.Bc3 Re8 29.Rxe8+ { 1/2-1/2, Dolmatov Sergey 2575 - Beliavsky Alexander G 2615 , Frunze 1981 Ch URS } ) 13.Bd3 { ?/= } ( 13.Qe1 Rac8 14.Bd3 Nb4 15.a3 Nxd3 16.Rxd3 Qc5 17.g4 d5 18.exd5 Bb5 19.Rd2 Bc4 20.dxe6 fxe6 21.Ne5 Rxd2 22.Qxd2 Qb6 23.Bf2 Qa5 24.Qe3 Bd5 25.Rd1 Bc5 26.Qe2 Bxf2 27.Nxd5 Nxd5 28.Qxf2 Qa4 29.Rd4 Rxc2 30.Rxa4 Rxf2 31.Rxa7 Rxf4 32.Rxb7 Re4 { ...1-0, Ye Jiangchuan 2649 - Milos Gilberto 2593 , Lucerne 1982 Olympiad } ) ( 13.g4 d5 14.e5 d4 15.Ne4 Qxd2 16.Nxf6+ Bxf6 { +0.64 CAP } ) 13...b5 ( 13...Be8 14.g4 Rac8 15.g5 hxg5 16.Bxg5 d5 17.e5 Nh5 18.Bxe7 Nxe7 19.Nd4 g6 20.h4 Rxc3 21.bxc3 Rc8 22.Kb2 Qb6+ 23.Ka1 Qc5 24.Ne2 Bb5 25.Rb1 Bxd3 26.cxd3 b6 27.Rbc1 Nf5 28.Rh3 Kf8 29.Qe1 Ke7 30.c4 Nd4 31.Nc3 Nxf4 32.Rg3 Qa3 33.Kb1 { ...1/2-1/2, Tiviakov Sergei 2585 - Reeh Oliver 2455 , Gausdal 1992 It (open) } ) 14.g4 ( 14.Rhg1 b4 15.Ne2 e5 16.g4 Be6 17.b3 d5 18.Bxf6 Bxf6 19.g5 hxg5 20.fxg5 Be7 21.g6 dxe4 22.gxf7+ Bxf7 23.Qh6 { 1-0, Gufeld Eduard 2470 - Utasi Tamas 2485 , Habana 1985 It (cat.8) } ) ( 14.Nxb5 Qb6 15.Rhe1 Rab8 16.b3 Be8 17.f5 Ne5 18.Nc3 a5 19.fxe6 fxe6 20.Bf1 Rdc8 21.a4 Nc4 22.Bxc4 Rxc4 23.Ka1 Qc5 24.Re3 Bxa4 25.Nxa4 Qa3+ 26.Kb1 Rxa4 27.Qc3 Qa2+ 28.Kc1 d5 29.Qe5 Qa3+ 30.Kd2 Qb4+ 31.Ke2 Qb5+ 32.Ke1 Qb6 33.exd5 Nxd5 { ...1/2-1/2, Byrne Robert E 2434 - Ivanovic Bozidar 2510 , Reykjavik 1982 It (open) } ) ( 14.Qe1 b4 15.Ne2 e5 16.f5 d5 17.Bxf6 Bxf6 18.exd5 Ne7 19.Be4 Bxf5 20.Nd2 Bxe4 21.Nxe4 Nxd5 22.Qg3 Be7 23.Rhf1 Rac8 24.Qf3 f6 25.g4 Qb5 26.Rd3 Qc4 27.Rc1 Nc7 28.N2g3 Ne6 29.Rxd8+ Rxd8 30.Nf5 Rd7 31.Neg3 Bf8 32.Nh5 Rf7 33.b3 e4 { ...1-0, Fogarasi Tibor 2420 - Jakobsen Peter 2330 , Festuge 1991 It (open) } ) 14...b4 15.Ne2 ( 15.Bxf6 Bxf6 16.Ne2 e5 17.g5 hxg5 18.fxg5 Be6 19.Nc1 Be7 20.h4 d5 21.Qe2 Rd6 22.h5 Rad8 23.g6 dxe4 24.gxf7+ Bxf7 25.Qxe4 Rh6 26.Bc4 Bxc4 27.Qxc4+ Kh8 28.Qe4 Qc7 29.Rxd8+ Bxd8 30.Nd3 Bf6 31.Nf2 Qd6 32.Ng4 Rh7 33.Qg6 { 1-0, Tiviakov Sergei 2635 - Shmuter Leonid 2468 , St. Petersburg 1993 Memorial M.Chigorin } ) 15...Nxg4 { N } ( 15...d5 16.Bxf6 Bxf6 17.e5 Be7 18.Ned4 Nxd4 19.Nxd4 Qb6 20.Rhf1 a5 21.g5 h5 22.g6 Qxd4 23.Qe2 Bc5 24.Qxh5 { 1-0, Garcia Gildardo 2495 - De La Paz Frank 2370 , Santa Clara 1996 It (cat.9) } ) 16.Rhg1 Bxh4 17.Nxh4 { +0.29 CAP } 17...Qh5 18.Qe1 Nf6 { ^00 ^00 ^00 ^01 ^00 ^02 f5 ^254 ^00 ^00 ^00 ^128 } 19.f5 { ! } ( 19.Qg3 Ne8 20.f5 exf5 21.Nxf5 { } ) 19...e5 20.Qg3 Ne8 { ^00 ^00 ^00 ^01 ^00 ^05 Qg3f2 ^254 ^00 ^00 ^00 ^128 } 21.Qf2 { ! } ( 21.Nf3 Na5 22.Qg2 f6 23.Ng3 { } ) 21...Kh8 22.Nf4 exf4 23.Be2 Qg5 24.Rxg5 hxg5 25.Nf3 f6 26.Qg2 Ne7 27.h4 g4 28.Qxg4 d5 29.Qxf4 Rac8 30.Nd4 a5 31.h5 dxe4 32.h6 g6 33.fxg6 Nxg6 34.Qg3 Ne7 35.Bh5 Nf5 36.Nxf5 Bxf5 37.Rg1 { } {#r} 1-0