[Event "Ch Poland (team) (region)"] [Site "masterchessopen.com Poland"] [Round "0"] [White "Niwinski Wlodzimierz (POL)"] [Black "Sitek J"] [Result "1-0"] [WhiteElo "2057"] [ECO "D55"] [Opening "QGD: 6.Nf3"] 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bxf6 Bxf6 8.Rc1 c6 9.Bd3 b6 10.cxd5 exd5 11.O-O Bb7 12.Re1 c5 13.Bb1 Na6 14.Qd3 g6 15.Rcd1 Nc7 16.Ne5 Re8 17.f4 c4 18.Qc2 b5 19.Nxf7 Kxf7 20.Qxg6+ Kf8 21.e4 Bg7 22.e5 Qe7 23.f5 Qf7 24.Qg3 {#r} 1-0