[Event "Olympiad-23"]
[Site "Buenos Aires"]
[Date "1978.??.??"]
[Round "11"]
[White "Jones, Iolo Cerredig"]
[Black "Alvarez, Franklin"]
[Result "0-1"]
[WhiteElo "2250"]
[BlackElo "0"]
[ECO "A49"]
[PlyCount "122"]

1.Nf3 d5 2.g3 Nf6 3.Bg2 g6 4.O-O Nbd7 5.d3 Bg7 6.Nbd2 O-O 7.e4 dxe4 8.dxe4 e5 9.Qe2 Nh5 10.Rd1 Qe7 11.Nc4 Nb6 12.Nxb6 axb6 13.Bd2 Qc5 14.Ne1 Be6 15.a3 Bc4 16.Qe3 Rfd8 17.Qxc5 bxc5 18.Bf3 Nf6 19.Bc3 Ne8 20.Ng2 Nd6 21.Ne3 Be6 22.Be1 Nb5 23.c3 Bb3 24.Rxd8+ Rxd8 25.Be2 Nd6 26.f3 f5 27.exf5 gxf5 28.Bf2 b6 29.Bd1 Be6 30.Bc2 Bh6 31.Rd1 Rd7 32.Ba4 Rg7 33.Bc6 Bb3 34.Bd5+ Bxd5 35.Rxd5 Re7 36.Kf1 Kf7 37.Rd1 Ke6 38.Nd5 Rd7 39.Ne3 c4 40.Ke2 Bxe3 41.Bxe3 h5 42.a4 Rd8 43.a5 bxa5 44.Ra1 Rb8 45.Rxa5 Rxb2+ 46.Bd2 e4 47.f4 Nb5 48.Ra6+ Kd5 49.Ke3 c6 50.Ra5 Rb3 51.Ke2 c5 52.Ra6 Nxc3+ 53.Bxc3 Rxc3 54.Rf6 Ra3 55.Rxf5+ Kd4 56.Rxh5 Ra2+ 57.Kd1 c3 58.Re5 c2+ 59.Kd2 e3+ 60.Kc1 c4 61.h4 Kd3 0-1