[Event "Ch Poland"] [Site "masterchessopen.com Warsaw (Poland)"] [Date "2011.02.15"] [Round "4"] [White "Staniszewski Piotr (POL)"] [Black "Tazbir Marcin (POL)"] [Result "1-0"] [WhiteElo "2423"] [BlackElo "2520"] [ECO "D85"] [Opening "Gruenfeld: Exchange, 5.e4"] 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Be3 c5 9.Ne2 Nc6 10.O-O Qc7 11.Rc1 Na5 12.Bd3 b6 13.Qd2 Bd7 14.Bh6 Rad8 15.Bxg7 Kxg7 16.Qe3 f6 17.Nf4 Nc6 18.Bb5 e5 19.Nd5 Qd6 20.dxc5 Qxc5 21.Qxc5 bxc5 22.Rfd1 Na5 23.Nc7 Bc8 24.Ba6 Rxd1+ 25.Rxd1 Rf7 26.Ne8+ Kf8 27.Nd6 {#r} 1-0