[Event "Candidates qf Spassky-Portisch +1-1=12"]
[Site "Mexico City"]
[Date "1980.04.??"]
[Round "11"]
[White "Spassky, Boris Vasilievich"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2615"]
[BlackElo "2655"]

1. e4 c5 2. Nc3 d6 3. g3 Nc6 4. Bg2 g6 5. d3 Bg7 6. Be3 Rb8 7. Qd2 b5 8. Nge2 Nd4 9. O-O e6 10. Nd1 Ne7 11. Nxd4 cxd4 12. Bh6 O-O 13. Bxg7 Kxg7 14. f4 f6 15. Bh3 e5 16. Nf2 Bxh3 17. Nxh3 1/2-1/2