[Event "Biel Interzonal"]
[Site "Biel"]
[Date "1976.??.??"]
[Round "10"]
[White "Diaz, Joaquin C"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[WhiteElo "2385"]
[BlackElo "2625"]
[ECO "B43"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.g3 Bb4 7.Bd2 Nf6 8.Bg2 Nc6
9.Nxc6 bxc6 10.O-O Be7 11.Re1 e5 12.Na4 d6 13.c4 Be6 14.c5 dxc5 15.Be3 Nd7
16.Qc2 Qa5 17.Rec1 Rd8 18.Bf1 O-O 19.Bd2 Qc7 20.Bxa6 Ra8 21.Bf1 Rfb8 22.b3 h6
23.f3 Ra7 24.f4 exf4 25.gxf4 Nf6 26.f5 Bc8 27.Be3 Rxa4 28.bxa4 Ng4 29.Qe2 Nxe3
30.Qxe3 Bf6 31.Qxc5 Rb2 32.Bg2 Qf4 33.Rab1 Rxg2+ 34.Kxg2 Qxe4+  0-1

