[Event "Tournament (open) \"] [Site "masterchessopen.com – Warsaw (Poland)"] [Date "2010.01.24"] [Round "4"] [White "Grochulski Grzegorz (POL)"] [Black "Nguyen Piotr (POL)"] [Result "0-1"] [WhiteElo "2018"] [BlackElo "2367"] [ECO "B27"] [Opening "Sicilian: Hungarian, 3.d4 cxd4"] 1.e4 c5 2.Nf3 g6 3.d4 cxd4 4.Nxd4 Bg7 5.c4 Nc6 6.Be3 Nf6 7.Nc3 O-O 8.Be2 d6 9.O-O Bd7 10.Nc2 a5 11.f3 a4 12.Qd2 Qa5 13.Rab1 Rfc8 14.b4 axb3 15.axb3 Ng4 16.Nd5 Nxe3 17.Qxa5 Rxa5 18.Ndxe3 Ra2 19.Rfd1 Be6 20.Kf2 f5 21.exf5 Bxf5 22.Nxf5 gxf5 23.Ne3 Bd4 24.Rd3 f4 {#R} 0-1