[Event "Candidates qf Spassky-Portisch +1-1=12"]
[Site "Mexico City"]
[Date "1980.04.??"]
[Round "7"]
[White "Spassky, Boris Vasilievich"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]
[WhiteElo "2615"]
[BlackElo "2655"]

1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Nf6 5. Nc3 Nxd5 6. Bc4 Nb6 7. Bb3 Nc6 8. Nf3 Bf5 9. d4 e6 10. O-O Be7 11. d5 exd5 12. Nxd5 Nxd5 13. Bxd5 O-O 14. Be3 Bf6 15. Rc1 Nb4 16. Bxb7 Rb8 17. Qxd8 Bxd8 18. Bc6 Nxc6 19. Rxc6 Rxb2 20. Bxa7 1/2-1/2