[Event "183rd MGU Open 2017"] [Site "masterchessopen.com Sofia BUL"] [Date "2017.03.05"] [Round "4.2"] [White "Karaivanova,Petya"] [Black "Kostov,N"] [Result "1-0"] [WhiteElo "1586"] [BlackElo "1653"] [ECO "C55"] [Opening "Two Knights: 4.d3 Be7"] 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 Be7 5.O-O d6 6.c3 O-O 7.Nbd2 Be6 8.Bb5 Nd7 9.Re1 a6 10.Ba4 b5 11.Bc2 d5 12.exd5 Bxd5 13.Nf1 Bf6 14.Ng3 g6 15.Bh6 Re8 16.Nd2 Bh8 17.Nge4 Bg7 18.Bxg7 Kxg7 19.Bb3 Bxb3 20.Qxb3 f5 21.Ng3 Nc5 22.Qc2 Qxd3 {#r} 1-0