[Event "Olympiad (sf)"] [Site "masterchessopen.com – Moscow (Russia)"] [Date "1956.09.04"] [Round "4"] [White "Dworzynski Roman (POL)"] [Black "Keres Paul P (URS)"] [Result "0-1"] [BlackElo "2580"] [ECO "C70"] [Opening "Spanish: 4.Ba4"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.d4 b5 6.Bb3 Nxd4 7.Nxd4 exd4 8.Qxd4 c5 9.Qd5 Be6 10.Qc6+ Bd7 11.Qd5 c4 {#R} 0-1