[Event "Ch Schleswig Holstein (qual)"] [Site "masterchessopen.com Schleswig Holstein (Germany)"] [Round "1"] [White "Potrykus Dierk"] [Black "Guetschow Christian"] [Result "1-0"] [ECO "C66"] [Opening "Spanish: Closed Berlin"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6 5.Re1 Be7 6.c3 O-O 7.h3 Bd7 8.d3 h6 9.Nbd2 Nh7 10.Nf1 f5 11.exf5 Bxf5 12.Ng3 Qd7 13.d4 exd4 14.Nxd4 Bg6 15.Ne6 Rf6 16.Nc5 Qc8 17.Nxb7 Ne5 18.Ba6 Qf8 19.f4 Rxf4 20.Bxf4 Qxf4 21.Nc5 Qxg3 22.Qd5+ Bf7 23.Qxa8+ Bf8 24.Rxe5 Qxe5 25.Nd7 {#r} 1-0