[Event "?"] [Site "masterchessopen.com – Riga (Latvia)"] [Round "0"] [White "Petrosian Arshak B (ARM)"] [Black "Kochyev Alexander (RUS)"] [Result "1-0"] [WhiteElo "2470"] [BlackElo "2417"] [ECO "C70"] [Opening "Spanish: 4.Ba4"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Nc5 10.Bc2 Bg4 11.Re1 Qd7 12.Nbd2 Rd8 13.Nb3 Be7 14.Nxc5 Bxc5 15.Qd3 Bxf3 16.Qxf3 O-O 17.Bg5 Be7 18.Bf5 Qe8 19.Bf6 g6 20.Qf4 {#r} 1-0