[Event "corr."] [Site "masterchessopen.com - Finland"] [Round "0"] [White "Ahlback Bror"] [Black "Lehtonen"] [Result "0-1"] [ECO "A23"] [Opening "English: Bremen, Keres, 4.Bg2 d5"] 1.c4 e5 2.Nc3 Nf6 3.g3 c6 4.Bg2 d5 5.cxd5 cxd5 6.d3 Nc6 7.Bg5 Be6 8.Qb3 Nd4 9.Qa4+ Bd7 10.Qd1 Qa5 11.Bxf6 gxf6 12.Bxd5 Bb4 13.Bxb7 Rb8 14.Bf3 Ba4 15.Qc1 Bxc3+ 16.bxc3 Nc2+ 17.Kf1 Nxa1 18.Qxa1 Bc2 {#R} 0-1