[Event "It"] [Site "masterchessopen.com Mar del Plata (Argentina)"] [Round "0"] [White "Najdorf Miguel (POL)"] [Black "Maccioni Alejandro (CHI)"] [Result "1-0"] [WhiteElo "2445"] [ECO "A47"] [Opening "Neo-Queen's Indian"] 1.d4 Nf6 2.Nf3 b6 3.c4 e6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Qc2 Be4 8.Qa4 Bc6 9.Qb3 d5 10.Nc3 dxc4 11.Qxc4 Bb7 12.Rd1 Qc8 13.Bg5 Nbd7 14.Rac1 h6 15.Bf4 c5 16.Qd3 Nd5 17.Nxd5 exd5 18.dxc5 bxc5 19.Nd4 Nf6 20.Nf5 Qd8 21.e4 d4 22.Qb5 Bxe4 23.Bxe4 Nxe4 24.Qb7 Re8 25.Qxe4 Bd6 26.Qf3 Bxf4 27.Qxf4 Qd5 28.b4 g6 29.Rxc5 {#r} 1-0