[Event "Ch URS"] [Site "masterchessopen.com Moscow (Russia)"] [Round "0"] [White "Khalifman Alexander (RUS)"] [Black "Ehlvest Jaan (USA)"] [Result "1-0"] [WhiteElo "2530"] [BlackElo "2580"] [ECO "D24"] [Opening "QGA: 4.Nc3"] 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Nc3 c6 5.a4 Bf5 6.Ne5 e6 7.f3 Bb4 8.e4 Bxe4 9.fxe4 Nxe4 10.Bd2 Qxd4 11.Nxe4 Bxd2+ 12.Nxd2 { ! } ( 12.Qxd2 { ? } ) 12...Qxe5+ 13.Be2 b5 ( 13...Qxb2 14.Rb1 ) 14.axb5 ( 14.O-O O-O 15.axb5 cxb5 16.Bf3 Nc6 { ! } ) 14...cxb5 15.Ra5 { ! } 15...a6 ( 15...Qxb2 16.Bf3 c3 17.O-O { ! } ) ( 15...O-O 16.Nxc4 Qc5 ( 16...Qe4 17.Rxb5 Nc6 18.O-O Rad8 19.Qe1 { ± } ) 17.Qd6 Rc8 18.Rf1 { ! } ) 16.Nxc4 Qc7 ( 16...Qc5 17.Qd6 { ! } 17...Nd7 ( 17...Qxd6 18.Nxd6+ Ke7 19.Bf3 Ra7 20.Nxb5 ) 18.Rf1 { ! } ) 17.Nd6+ Ke7 18.O-O { ! } 18...Qc5+ ( 18...Rf8 19.Nxb5 { +?? } ) ( 18...f6 19.Nxb5 { ! } 19...Qb6+ 20.Qd4 Qxa5 21.Qd6+ Kf7 22.Nc7 { +?? } ) ( 18...f5 19.Qd4 { ! } 19...Qxa5 20.Nb7 { ! } ) ( 18...Qb6+ 19.Kh1 f5 ( 19...Rf8 20.Rxf7+ { ! } 20...Rxf7 21.Nc8+ { +?? } ) ( 19...f6 20.Ne4 Qxa5 21.Qd6+ Kf7 22.Bh5+ { +?? } ) 20.Nxb5 { ! } 20...Qxa5 ( 20...Rd8 21.Qa4 { +?? } ) 21.Qd6+ Kf6 22.Rxf5+ { ! } 22...Kxf5 23.Nd4+ { +?? } ) 19.Kh1 f6 ( 19...f5 20.Nxf5+ exf5 21.Qe1 { ! } ) 20.Ne4 Qb4 ( 20...Qe5 21.Qc2 { ! } ) 21.Ra3 Nd7 ( 21...Qxe4 22.Bf3 ) ( 21...Nc6 22.Rg3 { ! } 22...Rhg8 23.Qc2 Rac8 24.Rc3 { ! } ) 22.Rf4 { ! ? ?b3 } 22...Nf8 ( 22...e5 23.Nxf6 { ! } ) 23.Rb3 Qa5 24.Qd6+ Kf7 25.Ng5+ Kg8 ( 25...Kg6 26.Bd3+ Kxg5 27.Rg4+ { ! } ) 26.Qe7 { } {#r} 1-0