[Event "Memorial G.Maroczy"] [Site "masterchessopen.com Budapest (Hungary)"] [Round "0"] [White "Keres Paul (EST)"] [Black "Platz Hans"] [Result "1-0"] [WhiteElo "2580"] [ECO "E02"] [Opening "Catalan: Open, 5.Qa4+"] 1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Qxc4 a6 7.Qc2 c5 8.Nf3 b5 9.a4 Bb7 10.O-O Rc8 11.axb5 axb5 12.Qb3 Qb6 13.Na3 Ba6 14.Nc4 bxc4 15.Qxb6 Nxb6 16.Rxa6 Nbd5 17.Bd2 Ne4 18.Ba5 c3 19.Ne5 Nd2 20.Rd1 c2 21.Rc1 Nb3 22.Rxc2 Nxd4 23.Rd2 Nb3 24.Bxd5 Nxd2 25.Bb7 {#r} 1-0