[Event "Cup Russia (open)"] [Site "masterchessopen.com - Tomsk (Russia)"] [Round "6"] [White "Isupov Sergei"] [Black "Grachev Jury (RUS)"] [Result "0-1"] [BlackElo "2428"] [ECO "A44"] [Opening "Old Benoni: Czech, 3.c4 d6 4.e4"] 1.d4 c5 2.d5 e5 3.c4 d6 4.e4 Ne7 5.Nc3 g6 6.g3 Bg7 7.Bg2 h6 8.Nge2 O-O 9.Be3 a6 10.Qd2 Kh7 11.f4 exf4 12.gxf4 Nd7 13.Ng3 f5 14.exf5 Nxf5 15.Nxf5 gxf5 16.O-O-O b5 17.Kb1 Nb6 18.cxb5 axb5 19.Qc2 Bd7 20.Bc1 b4 21.Ne2 c4 22.a3 Ba4 23.Qd2 c3 24.bxc3 bxc3 25.Nxc3 Nc4 {#R} 0-1