[Event "It \"] [Site "masterchessopen.com Buenos Aires (Argentina)"] [Date "2009.08.27"] [Round "4"] [White "Obregon Andres Carlos (ARG)"] [Black "Carraro Denise (ARG)"] [Result "1-0"] [WhiteElo "2406"] [BlackElo "2097"] [ECO "C05"] [Opening "French: Tarrasch, Closed, 4.e5"] 1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.c3 c5 6.Bd3 Nc6 7.Ne2 Rb8 8.O-O b5 9.Nf3 Be7 10.Nf4 b4 11.c4 dxc4 12.Bxc4 Nb6 13.Bb5 Bd7 14.dxc5 Bxc5 15.Qc2 Nd4 16.Qxc5 Nxb5 17.Nh5 Rg8 18.Bg5 Rc8 19.Qxb4 Nd5 20.Qg4 f6 21.Bxf6 {#r} 1-0