[Event "Ch Czechoslovakia (Army)"] [Site "masterchessopen.com Prague (Czech Republic)"] [Round "9"] [White "Sorsak Jozef Sr (SVK)"] [Black "Petras Jan (CZE)"] [Result "0-1"] [WhiteElo "2125"] [BlackElo "2085"] [ECO "E21"] [Opening "Nimzo-Indian: Three Knights"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 Nc6 5.Bg5 h6 6.Bh4 d6 7.Qc2 g5 8.Bg3 g4 9.Nd2 Nxd4 10.Qd3 e5 11.e4 Nd7 12.Na4 a6 13.Rc1 Qg5 14.Nc3 Nc5 15.Qb1 f5 16.h4 gxh3 17.Rxh3 fxe4 18.Bh4 Qf4 19.Bg3 Qf7 20.Rh2 Bf5 {#R} 0-1