[Event "Piatigorsky-Cup 2nd"]
[Site "Santa Monica"]
[Date "1966.07.24"]
[Round "5"]
[White "Portisch, Lajos"]
[Black "Spassky, Boris Vasilievich"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 b6 7. O-O Bb7 8. Na4 cxd4 9. exd4 Be7 10. Re1 d6 11. b4 Nbd7 12. Bb2 Re8 13. Nc3 Bf8 14. d5 e5 15. Nd2 g6 16. Nb3 Nh5 17. g3 Ng7 18. c5 dxc5 19. bxc5 Nxc5 20. Bb5 Nd7 21. Ne4 Kh8 22. Bc6 Qc7 23. Rc1 Bxc6 24. dxc6 Nc5 25. Nexc5 bxc5 26. Qf3 Rac8 27. Nxc5 Qxc6 28. Qxf7 Bxc5 29. Rxe5 Bxf2+ 30. Qxf2 Qxc1+ 31. Bxc1 Rxe5 32. Bb2 1/2-1/2