[Event "It (open) (b)"] [Site "Dortmund (Germany)"] [Date "2010.07.25"] [Round "9"] [White "Heyder Siegfried"] [Black "Backes Juergen"] [Result "0-1"] [WhiteElo "1308"] [ECO "B06"] [Opening "Modern: Three Pawns Attack"] 1.e4 g6 2.d4 Bg7 3.f4 d6 4.Nf3 Nf6 5.Nc3 O-O 6.h3 c5 7.Be3 Qa5 8.Qd2 Nc6 9.Bc4 a6 10.a4 b5 11.Bd5 Nxd5 12.Nxd5 Qxd2+ 13.Kxd2 cxd4 14.Bf2 Bb7 15.Kd3 e5 16.g4 f5 17.exf5 gxf5 18.gxf5 e4+ 19.Kxe4 Nb4 {#R} 0-1