[Event "It (open)"] [Site "masterchessopen.com Pardubice (Czech Republic)"] [Date "2007.07.23"] [Round "4"] [White "Pozin Sergey (RUS)"] [Black "Dvoirys Semen I (RUS)"] [Result "0-1"] [WhiteElo "2452"] [BlackElo "2572"] [ECO "D85"] [Opening "Gruenfeld: Exchange, 5.e4"] { Dvoirys Semen I (RUS) +2 =2 -1 } 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 Nc6 9.Be3 O-O 10.O-O Qc7 11.Rc1 Rd8 { ?/= } ( 11...e6 12.Qd2 Na5 13.Bd3 b6 14.Bh6 Bb7 15.e5 Qe7 16.h4 Rac8 17.Bg5 f6 18.exf6 Bxf6 19.Ng3 Bxg5 20.hxg5 Qd6 21.Qe3 cxd4 22.cxd4 Bd5 23.Rxc8 Rxc8 { 1/2-1/2, Sakaev Konstantin 2669 - Dvoirys Semen I 2615 , Moscow 19. 2.2004 It (open) "Aeroflot" } ) 12.Kh1 ( 12.Bf4 Qd7 13.d5 Na5 14.Bd3 b6 15.Bg5 f6 16.Be3 c4 17.Bc2 e6 18.Nf4 exd5 19.exd5 Qf7 20.Be4 Bb7 21.Qc2 Rd7 22.Rcd1 Re8 23.Bf3 Ba8 24.Qa4 f5 25.Bd4 Bxd4 26.Rxd4 Re5 27.Qd1 g5 28.Ne6 g4 29.Bxg4 Rexd5 30.Ng5 Qf6 31.Bf3 Rxd4 { ...1/2-1/2, Shirov Alexei 2709 - Kamsky Gata 2380 , Borzhomi 1988 Ch URS (juniors) } ) ( 12.Qd2 Qa5 13.Qb2 Qb6 14.Qxb6 axb6 15.Rfd1 Be6 16.d5 Ne5 17.Bb3 Bd7 18.c4 b5 19.cxb5 Bxb5 20.Nc3 Ba6 21.Bxc5 Nd3 22.Bxe7 Nxc1 23.Rxc1 Rdc8 24.Bb4 Bc4 25.g3 Bxb3 26.axb3 Ra6 27.Kg2 f5 28.exf5 gxf5 29.d6 Bxc3 30.d7 Rd8 31.Rxc3 Rxd7 { ...1/2-1/2, Sokolov Ivan 2670 - Ftacnik Lubomir 2610 , Jakarta 1996 It (cat.13) } ) 12...Na5 { N } ( 12...b6 13.f4 Na5 ( 13...e6 14.Qe1 Na5 15.Bd3 f5 16.e5 Bb7 17.Qf2 c4 18.Bc2 Nc6 19.Rb1 Ne7 20.Bc1 Nd5 21.Ba3 Qc6 22.Rg1 Rac8 { 1/2-1/2, Besseling Michiel 2202 - Van Wieringen Cor A, Netherlands 1990 corr. } ) 14.Bd3 f5 15.exf5 Bxf5 ( 15...gxf5 16.Ng3 e6 17.Nh5 Bb7 18.Qe2 c4 19.Bc2 Bd5 20.Bf2 Qf7 21.Bh4 Rf8 22.Nxg7 Qxg7 23.Rf3 Bxf3 24.gxf3 Rf6 25.Bxf6 Qxf6 26.Re1 Kf7 27.Ba4 Rd8 28.Bb5 h5 29.Bxc4 Nxc4 30.Qxc4 Rd7 31.Re5 h4 32.Qc8 { ...1/2-1/2, Tozer Richard 2290 - Morris Philip 2380 , London 1990 It (young masters) } ) 16.Bxf5 gxf5 17.d5 Nc4 18.Qd3 b5 19.Qxf5 Qd6 20.Bg1 Qxd5 21.Ng3 Rac8 22.Rfe1 Bf6 23.Qh3 Kh8 24.Ne4 Rc7 25.Rcd1 Qxd1 26.Rxd1 Rxd1 27.Qh6 Kg8 28.Nxf6+ exf6 29.Qxf6 h6 30.Qe6+ Kh7 31.Qf5+ Kh8 32.h3 { ...1-0, Vaganian Rafael A 2510 - Rogoff Kenneth S 2425 , Athens 1971 Ch World (juniors) (under 18) } ) ( 12...e6 13.f4 Na5 14.Bd3 f5 15.exf5 exf5 ( 15...gxf5 16.dxc5 Nc4 17.Bd4 Bxd4 18.Nxd4 Nb2 19.Qc2 Nxd3 20.Qxd3 Qxc5 21.Rce1 Kh8 22.Re5 Rd5 23.Rxd5 Qxd5 24.c4 Qd8 25.Rd1 a6 26.h3 Qf6 27.Nf3 Kg7 28.c5 Qb2 29.Ne5 { 1-0, Cooper John G 2347 - Branford John W 2235 , Brighton 1980 Ch Great Britain } ) 16.dxc5 Be6 17.Qc2 Nc6 18.Rb1 Qf7 19.Rb2 Bxa2 20.Bxf5 Bc4 21.Be4 Re8 22.Bg1 Re7 23.Rxb7 Rxb7 24.Bxc6 Re8 25.Bxb7 Qxb7 26.Rb1 Qa8 27.Nd4 a5 28.Qa4 Bd5 29.c6 Bxd4 30.Bxd4 Qxc6 31.Qxa5 Bxg2+ 32.Kg1 { ...1/2-1/2, Tukmakov Vladimir B 2565 - Stein Leonid Z 2605 , Moscow 1971 Memorial A.Alekhine } ) ( 12...a6 13.f4 b5 14.Bd3 e6 15.f5 exf5 16.exf5 Qe7 17.Qd2 cxd4 18.cxd4 Nxd4 19.Bg5 f6 20.Nxd4 Rxd4 21.Be3 Rd7 22.Rfd1 gxf5 23.Bf4 Kh8 24.Qf2 Bb7 25.Bxf5 Rxd1+ 26.Rxd1 Re8 27.h3 Bc6 28.Kh2 Qb4 29.Rd4 Qc5 30.Bd6 Qc1 31.Rh4 h6 32.Bc2 { ...1-0, Cooper John G 2347 - Pein Malcolm 2397 , Brighton 1980 Ch Great Britain } ) ( 12...Ne5 13.Bf4 cxd4 14.cxd4 Qb6 15.Bd5 Nc6 16.Be3 e6 17.Bxc6 bxc6 18.d5 Qa5 19.Nd4 Qxa2 20.Nxc6 Rd7 21.d6 Bb7 22.f4 Bxc6 23.Rxc6 e5 24.f5 f6 25.Rf2 Qf7 26.h3 Rad8 27.Rd2 Bf8 28.Rd5 gxf5 29.exf5 h5 30.Rd3 Qh7 31.Qb3+ Qf7 32.Qxf7+ { ...1-0, Edwards Raymond 2093 - Harman Ronald F A 2042 , Brighton 1972 Ch Great Britain } ) 13.Bd3 b6 14.f4 e6 { N } ( 14...f5 15.exf5 Bxf5 16.Bxf5 gxf5 17.d5 Nc4 18.Qd3 b5 19.Qxf5 Qd6 20.Bg1 Qxd5 21.Ng3 Rac8 22.Rfe1 Bf6 23.Qh3 Kh8 24.Ne4 Rc7 25.Rcd1 Qxd1 26.Rxd1 Rxd1 27.Qh6 Kg8 28.Nxf6+ exf6 29.Qxf6 h6 30.Qe6+ Kh7 31.Qf5+ Kh8 32.h3 Rg7 33.Qxc5 a6 34.Qh5 { ...1-0, Vaganian Rafael A 2510 - Rogoff Kenneth S 2425 , Athens 1971 Ch World (juniors) (under 18) } ) 15.f5 exf5 16.exf5 Bb7 17.Qd2 { -0.52 CAP } ( 17.Bg5 Re8 18.Nf4 cxd4 19.cxd4 Qd6 20.Qg4 Rac8 21.Rce1 Qxd4 22.fxg6 hxg6 23.h4 Nc4 24.Bxc4 Qxc4 25.h5 gxh5 26.Qxh5 Be4 27.Kh2 Qc6 28.Qh4 Qd6 29.Re3 Rc3 30.Rff3 Rxe3 31.Rxe3 Kf8 32.Rg3 Bf5 33.Nh5 Re4 34.Bf4 Be5 35.Ng7 Bg6 36.Qh8+ Ke7 { ...1/2-1/2, Razuvaev Yuri S 2490 - Haag Ervin 2440 , Polanica Zdroj 1972 It } ) 17...cxd4 { N } 18.cxd4 Qd6 19.Bh6 Bxd4 20.fxg6 hxg6 21.Qg5 Bb2 22.Rcd1 Qd5 23.Qg4 Qd7 24.Qg3 Qc6 25.Nf4 Be5 26.Qg4 { ?! } ( 26.Rfe1 { !? } 26...Qc3 27.Bg5 Rd6 28.Rc1 Qd4 29.Re3 { } ) 26...Rd6 27.Qe2 Re8 28.Rde1 { ?! } ( 28.Bb5 { !? } 28...Bxf4 29.Qxe8+ Qxe8 30.Bxe8 Rxd1 31.Rxd1 Bxh6 32.Rd7 Kg7 33.Rxf7+ Kg8 34.Rd7 g5 { } ) 28...Re7 29.Rg1 Bxf4 30.Qxe7 Bxh6 31.Bb5 Qd5 32.Be8 Bf8 33.Qc7 Rf6 34.Rd1 Qxa2 35.Qb8 Qe2 36.Rb1 Rf2 { } {#R} 0-1