[Event "It (open)"] [Site "Guben (Germany)"] [Round "2"] [White "Preuss Siegfried (GER)"] [Black "Mersmann Maren (GER)"] [Result "1-0"] [WhiteElo "1976"] [ECO "D00"] [Opening "Blackmar-Diemer Gambit (BDG): 2.e4"] 1.d4 d5 2.e4 e6 3.Nc3 dxe4 4.f3 exf3 5.Nxf3 Nf6 6.Bd3 b6 7.O-O Bb7 8.Be3 Be7 9.Ne5 O-O 10.Qe1 Nbd7 11.Qh4 h6 12.Bxh6 Nd5 13.Qg4 Bf6 14.Nxd7 Qxd7 15.Rxf6 g6 16.Nxd5 Qxd5 17.Bxg6 {#r} 1-0