[Event "It (open) \"] [Site "masterchessopen.com - Berlin (Germany)"] [Date "2010.08.07"] [Round "1"] [White "Engelhardt Erhard (GER)"] [Black "Krefenstein Sergej"] [Result "1-0"] [WhiteElo "1797"] [BlackElo "2045"] [ECO "A02"] [Opening "Bird: From Gambit, 3...Bxd6"] 1.f4 e5 2.fxe5 d6 3.exd6 Bxd6 4.Nf3 g5 5.g3 g4 6.Nh4 Ne7 7.d4 Ng6 8.Nxg6 hxg6 9.Qd3 Nc6 10.c3 Qe7 11.e4 Be6 12.Bg2 O-O-O 13.Bf4 Bc5 14.Nd2 f5 15.O-O-O Bxa2 16.Rhe1 Rhe8 17.Qb5 Bxd4 18.cxd4 Nxd4 19.Qa5 Qe6 20.Qxc7# 1-0