[Event "Tournament \"] [Site "masterchessopen.com St. Petersburg (Russia)"] [Date "2010.10.20"] [Round "5"] [White "Pen Pyotr (RUS)"] [Black "Erofeev Alexey (RUS)"] [Result "0-1"] [WhiteElo "2047"] [BlackElo "2178"] [ECO "C17"] [Opening "French: Winawer, 5.a3"] 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Qa5 7.Bd2 Qa4 8.Qb1 c4 9.f4 Nc6 10.Nf3 Nge7 11.g4 h5 12.Bh3 Bd7 13.Ng5 f6 14.Nxe6 Bxe6 15.f5 hxg4 16.fxe6 Rxh3 17.Qxb7 Rd8 18.exf6 gxf6 19.Ra2 Rd6 20.O-O Rxe6 21.Qc7 Qb5 {#R} 0-1