[Event "It (open)"] [Site "masterchessopen.com – Hamburg (Germany)"] [Round "1"] [White "Marxen Peter (GER)"] [Black "Haack Stefan (GER)"] [Result "1-0"] [WhiteElo "2252"] [BlackElo "1914"] [ECO "C47"] [Opening "Four Knights: Scotch, 4...exd4"] 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 exd4 5.Nxd4 Bb4 6.Nxc6 Bxc3+ 7.bxc3 bxc6 8.Bd3 d5 9.exd5 cxd5 10.Ba3 Be6 11.O-O Ne4 12.Bb5+ {#r} 1-0