[Event "It \"] [Site "masterchessopen.com Hamburg (Germany)"] [Date "2011.07.15"] [Round "8"] [White "Nixdorf Andre (GER)"] [Black "Knaak Michael (GER)"] [Result "0-1"] [WhiteElo "1946"] [BlackElo "1918"] [ECO "C17"] [Opening "French: Winawer, 5.a3"] 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Nf3 Nbc6 8.a4 Qa5 9.Bd2 Bd7 10.Be2 f6 11.exf6 gxf6 12.Nh4 O-O-O 13.O-O Ng6 14.Nf3 c4 15.Qc1 e5 16.dxe5 Ncxe5 17.Nxe5 Nxe5 18.Be3 Rhg8 19.Bd4 Bh3 20.g3 Bxf1 21.Kxf1 Nc6 22.Qf4 Nxd4 23.Qxd4 Qb6 {#R} 0-1