[Event "Mar del Plata"] [Site "Mar del Plata"] [Round "0"] [White "Miguel Najdorf"] [Black "Rene Letelier Martner"] [Result "1-0"] [ECO "D55"] [Opening "QGD: 6.Nf3"] 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Ne8 7.Bxe7 Qxe7 8.Qc2 Nf6 9.cxd5 exd5 10.Bd3 c6 11.O-O Re8 12.e4 dxe4 13.Nxe4 Nxe4 14.Bxe4 g6 15.Rfe1 Qd8 16.d5 f5 17.dxc6 fxe4 18.c7 Qd5 19.Rad1 Qc6 20.cxb8=Q Rxb8 21.Nd4 Qxc2 22.Nxc2 Kf7 23.Rd4 Bf5 24.Ne3 Rbd8 25.Red1 Rxd4 26.Rxd4 Re5 27.g4 Be6 28.a3 Kf6 29.Rb4 b5 30.Kg2 h6 31.Rd4 Ke7 32.Kg3 g5 33.Kg2 a5 34.Kf1 a4 35.Ke2 Kf6 36.Kd2 h5 37.gxh5 g4 38.h6 Rh5 39.Rxe4 Rxh6 40.Nxg4+ Bxg4 41.Rxg4 Rxh2 42.Ke3 Rh3+ 43.f3 Rh2 44.Rb4 Rh5 45.Rd4 Ke5 46.Rg4 Kd5 47.Rg2 Rh1 48.Rg5+ Kc4 49.Rg4+ Kc5 50.Rb4 Re1+ 51.Kf4 Rc1 52.Kg5 Rc4 53.Rxc4+ Kxc4 54.f4 Kb3 55.f5 Kxb2 56.f6 Kxa3 57.f7 Kb3 58.f8=Q a3 59.Qf3+ Kb2 60.Qe2+ Ka1 61.Qf1+ Ka2 62.Qxb5 Ka1 63.Qc5 {#r} 1-0