[Event "It (cat.7)"] [Site "masterchessopen.com Roznov (Czech Republic)"] [Round "4"] [White "Obsivac Josef (CZE)"] [Black "Berezjuk Sergej (CZE)"] [Result "0-1"] [WhiteElo "2344"] [BlackElo "2448"] [ECO "E12"] [Opening "Queen's Indian: 4.Nc3 Bb7"] 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.Bg5 h6 6.Bh4 Bb4 7.Qb3 Be7 8.e3 Ne4 9.Nxe4 Bxh4 10.Nc3 Be7 11.e4 d6 12.Be2 Nd7 13.O-O c5 14.d5 e5 15.Qc2 Bc8 16.a3 Nf8 17.b4 Ng6 18.Rfb1 O-O 19.bxc5 bxc5 20.Rb3 Nf4 21.Bf1 f5 22.Rab1 Qe8 23.Nb5 Qd8 24.Nd2 fxe4 25.Nxe4 Bf5 26.Nbc3 Qe8 27.Rb7 Qg6 28.Kh1 Bd8 29.f3 Ba5 30.Nb5 a6 31.Na7 Bd8 32.Nc6 Bg5 33.Re1 h5 34.Rb6 h4 35.Nxe5 Qh5 36.Rxd6 Rae8 37.Nd3 h3 38.g4 Qh4 39.gxf5 Nxd3 40.Re2 Nf4 41.Rf2 Rxf5 42.Nxc5 Re1 43.Ne4 Ne2 44.Qxe2 Rxe2 45.Bxe2 Be3 46.Rf1 Rg5 47.f4 Rg2 48.Bf3 Bxf4 49.Bxg2 hxg2+ 50.Kxg2 Qxh2+ 51.Kf3 Bxd6 52.Nxd6 Qxd6 53.Ke4 Qxa3 54.Rd1 Kf7 55.d6 Ke8 56.Rd5 Qb4 {#R} 0-1