[Event "Pan-am Continental"] [Site "Toluca, Mexico"] [Date "2011.04.23"] [Round "8"] [White "S Barrientos Chavarriaga"] [Black "Anton Kovalyov"] [Result "1-0"] [WhiteElo "2499"] [BlackElo "2629"] [ECO "B90"] [Opening "Sicilian: Najdorf"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 Nbd7 7.f4 Qc7 8.Qf3 h6 9.Bh4 g5 10.fxg5 hxg5 11.Bxg5 Qc5 12.Be3 Ne5 13.Qd1 Nc4 {#r} 1-0