[Event "Ch Pan-American (juniors) (under 12)"] [Site "masterchessopen.com Cali (Colombia)"] [Date "2011.07.06"] [Round "6"] [White "Silva Juan Esteban"] [Black "Calero Hector Andres"] [Result "1-0"] [ECO "B90"] [Opening "Sicilian: Najdorf"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be6 8.Be3 Be7 9.O-O O-O 10.Bf3 Nbd7 11.Bg5 Nc5 12.Nxc5 dxc5 13.Qe2 h6 14.Bh4 Qc7 15.Rad1 Rab8 16.Bg3 b5 17.Nd5 Nxd5 18.exd5 Bf5 19.c3 Rfe8 20.Qd2 c4 21.Rfe1 {#r} 1-0