[Event "Olympiad-18 Preliminaries A"]
[Site "Lugano"]
[Date "1968.10.23"]
[Round "6"]
[White "Keene, Raymond"]
[Black "Spassky, Boris Vasilievich"]
[Result "1/2-1/2"]

1. Nf3 Nf6 2. g3 b5 3. Bg2 Bb7 4. O-O c5 5. d3 d6 6. b3 e6 7. Bb2 Be7 8. c4 bxc4 9. bxc4 Nbd7 10. Nbd2 O-O 11. Rb1 Qc7 12. Qc2 Rfb8 13. Bc3 Bc6 14. Rxb8+ Rxb8 15. Rb1 Nb6 16. Qb2 Rb7 17. Qc1 Na4 18. Ba1 h6 19. Rxb7 Qxb7 20. Nb3 Qb4 21. Ne1 Bxg2 22. Nxg2 Nd7 23. Ne1 Bg5 24. e3 Bf6 25. Nc2 Qb7 26. Bxf6 Nxf6 27. Qd2 Ng4 28. Ne1 Ne5 29. Qa5 Nb6 30. Nd2 f5 31. Qb5 Qc6 32. Qb2 Qa4 33. Qb3 Kf7 34. Kf1 Ke7 35. Ke2 Nc6 36. Qb2 e5 37. a3 g5 38. h3 Qa6 39. Nb1 Ke6 40. Nc3 Na4 1/2-1/2