[Event "It (open) \"] [Site "Berlin (Germany)"] [Date "2011.08.16"] [Round "4"] [White "Perestjuk Marko (GER)"] [Black "Koischwitz Wanja (GER)"] [Result "1-0"] [WhiteElo "1969"] [BlackElo "1838"] [ECO "B03"] [Opening "Alekhine: Four Pawns Attack"] 1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.f4 dxe5 6.fxe5 Bf5 7.Nc3 Nc6 8.Be3 e6 9.Be2 Be7 10.Nf3 Bg4 11.O-O O-O 12.Qd2 f6 13.exf6 Bxf6 14.Rad1 Qd7 15.d5 Bxc3 16.Qxc3 exd5 17.cxd5 Nxd5 18.Rxd5 {#r} 1-0