[Event "Chigorin Memorial"] [Site "St. Petersburg RUS"] [Date "1995.09.??"] [EventDate "1995.09.00"] [Round "9"] [Result "1-0"] [White "Nikolai Biriukov"] [Black "Roman Efremov"] [ECO "D44"] [WhiteElo "?"] [BlackElo "2425"] [Source "ChessBase"] [PlyCount "54"] 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.Nxg5 hxg5 10.Bxg5 Nbd7 11.exf6 Bb7 12.g3 Qb6 13.Bg2 O-O-O 14.O-O c5 15.d5 b4 16.Rb1 Bh6 17.f4 Bxg5 18.fxg5 Qa6 19.Ne2 Nb6 20.Qe1 Nxd5 21.Qf2 Qb5 22.a3 a5 23.Rfc1 Kb8 24.axb4 cxb4 25.h4 Nb6 26.Nd4 Qc5 27.Nc6+ 1-0