[Event "A40"] [Site "Cleanchess.com Swiss"] [Date "1993.01.01"] [Round "1"] [White "Costa"] [Black "Schauwecker"] [Result "0-1"] [ECO "A40"] [Opening "Queen's Pawn: Keres Defence"] 1.d4 e6 2.c4 Bb4+ 3.Nd2 d5 4.a3 Bxd2+ 5.Bxd2 Nf6 6.e3 O-O 7.Nf3 Nbd7 8.Rc1 Ne4 9.Bd3 f5 10.O-O Rf6 11.Qc2 c6 12.Be1 Rh6 13.Ne5 Nxe5 14.dxe5 Qh4 15.h3 Ng5 16.f3 Nxh3+ 17.gxh3 Qxh3 18.Qg2 Rg6 19.Qxg6 hxg6 20.Rc2 Qh6 21.Re2 Qg5+ 22.Kh1 Kf7 23.e4 Bd7 24.Bd2 {#R} 0-1