[Event "Ch Berlin (qual)"] [Site "masterchessopen.com - Berlin (Germany)"] [Date "2011.04.23"] [Round "1"] [White "Krefenstein Sergej (GER)"] [Black "Struk Thaddaeus (GER)"] [Result "1-0"] [WhiteElo "2025"] [BlackElo "1745"] [ECO "A00"] [Opening "Van Geet: 1...d5 2.e4 d4"] 1.Nc3 d5 2.e4 d4 3.Nce2 e5 4.d3 Bb4+ 5.c3 dxc3 6.bxc3 Ba5 7.f4 Qf6 8.Qb3 Bb6 9.Nf3 exf4 10.Bxf4 Be6 11.Qa3 Nd7 12.Bg5 Qg6 13.Nf4 Bc5 14.Qb2 {#r} 1-0