[Event "Ch Sachsen"] [Site "masterchessopen.com Germany"] [Round "4"] [White "Pietzsch Manuel (GER)"] [Black "Schumacher Britta (GER)"] [Result "0-1"] [WhiteElo "2061"] [BlackElo "2035"] [ECO "E21"] [Opening "Nimzo-Indian: Three Knights"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 b6 5.e3 Bb7 6.Be2 Bxc3+ 7.bxc3 O-O 8.O-O Ne4 9.Qc2 f5 10.Rd1 d6 11.Rb1 Nd7 12.a4 a5 13.Ba3 Qe8 14.h3 Kh8 15.Bd3 Qh5 16.Be2 Qh6 17.d5 e5 18.Nd2 Nxd2 19.Rxd2 Rf6 20.Kf1 Raf8 21.Ke1 Qg5 22.Bf1 Ba6 23.Kd1 e4 24.Kc1 Ne5 25.Qa2 f4 {#R} 0-1