[Event "It (open)"] [Site "masterchessopen.com Karl-Mala (Germany)"] [Round "4"] [White "Siegler Wolfgang (GER)"] [Black "Wittstock Bjoern (GER)"] [Result "0-1"] [WhiteElo "2062"] [BlackElo "2078"] [ECO "D20"] [Opening "QGA: 3.e4 Nf6 4.Nc3"] 1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.Nc3 e5 5.Nf3 exd4 6.Qxd4 Qxd4 7.Nxd4 Bc5 8.Ndb5 Na6 9.Bxc4 c6 10.Na3 b5 11.Bd3 b4 12.Na4 bxa3 13.Bxa6 Bb4+ 14.Nc3 Bxa6 15.f3 O-O-O {#R} 0-1