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

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Rc1 h6 7. Bh4 b6 8. cxd5 Nxd5 9. Nxd5 exd5 10. Bxe7 Qxe7 11. Ne2 Bb7 12. Nf4 c5 13. Be2 cxd4 14. Qxd4 Nc6 15. Qxd5 g5 16. Nd3 Nb4 17. Qb3 Nxd3+ 18. Bxd3 Bxg2 19. Rg1 Be4 20. h4 Rac8 21. Rxc8 Rxc8 22. Ke2 Rc5 23. hxg5 hxg5 24. f4 Kf8 1/2-1/2