[Event "?"] [Site "masterchessopen.com Mar del Plata (Argentina)"] [Round "0"] [White "Byrne Robert E (USA)"] [Black "Silva Nazzari Roberto (URU)"] [Result "1-0"] [WhiteElo "2434"] [BlackElo "2173"] [ECO "E21"] [Opening "Nimzo-Indian: Three Knights"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 d5 5.e3 O-O 6.Bd3 c5 7.O-O dxc4 8.Bxc4 b6 9.Qe2 Bb7 10.Rd1 cxd4 11.exd4 Nbd7 12.Bb3 Bxc3 13.bxc3 Qc7 14.c4 Rfd8 15.Bb2 Qf4 16.Rd3 Nf8 17.Ne5 Ng6 18.Nxg6 hxg6 19.Rad1 Rd7 20.Qe5 Qe4 21.f3 Qxe5 22.dxe5 Rxd3 23.Rxd3 Ne8 24.a4 Bc6 25.Ba3 Rc8 26.c5 Nc7 27.cxb6 axb6 28.Rc3 Bb7 29.Kf2 Nd5 30.Rxc8+ Bxc8 31.Bb2 Kf8 32.Bd4 Bd7 33.Ke2 Ke8 34.Kd2 Bc6 35.g3 Kd7 36.f4 Kc7 37.Bb2 Kb7 38.Kd3 Ka6 39.Bc1 b5 40.axb5+ Kxb5 41.Ba3 Nc7 42.Bf8 Ne8 43.Bd1 Kb6 44.h4 Kc7 45.g4 Bg2 46.Ke3 Kd8 47.Bc2 f5 48.exf6 Nxf6 49.Bxg7 Nd5+ 50.Kf2 Bh3 51.Bd1 Nxf4 52.Kg3 e5 53.Bxe5 Nd3 54.Bf6+ Ke8 55.Be2 Nc5 56.Kxh3 {#r} 1-0