[Event "It \"] [Site "masterchessopen.com – Sao Paulo (Brazil)"] [Date "2011.04.24"] [Round "9"] [White "Perdomo Leandro (ARG)"] [Black "Oliveira Jefferson Dos Santos (BRA)"] [Result "1-0"] [WhiteElo "2387"] [BlackElo "2255"] [ECO "E10"] [Opening "Neo-Indian: 3.Nf3"] 1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Bb4 5.cxd5 exd5 6.Bg5 c6 7.Qb3 Qc7 8.e3 Nbd7 9.Bd3 h6 10.Bh4 O-O 11.O-O Re8 12.a3 Ba5 13.Qc2 Qb8 14.b4 Bd8 15.Na4 a6 16.Nc5 Be7 17.Rab1 a5 18.Rfc1 axb4 19.axb4 Bxc5 20.bxc5 Ne4 21.Bxe4 Rxe4 22.Bg3 Re6 23.Nd2 {#r} 1-0