[Event "?"] [Site "masterchessopen.com Philadelphia (USA)"] [Round "0"] [White "Gruenfeld Yehuda (ISR)"] [Black "Sax Gyula (HUN)"] [Result "0-1"] [WhiteElo "2550"] [BlackElo "2570"] [ECO "B40"] [Opening "Sicilian: Open, 2...e6, 4.Nxd4"] 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.Rg1 Nc6 8.h4 h5 9.gxh5 Nxh5 10.Bg5 Nf6 11.Qd2 Qb6 12.Nb3 a6 13.O-O-O Qc7 14.Qe2 b5 15.f4 Bd7 16.Nd4 Nxd4 17.Rxd4 b4 18.Nd1 Qb6 19.Qd2 Nxe4 20.Qe3 d5 21.Rxd5 Qxe3+ 22.Nxe3 exd5 23.Nxd5 Bc5 {#R} 0-1