[Event "Interzonal-07"]
[Site "Sousse"]
[Date "1967.10.19"]
[Round "4"]
[White "Sarapu, Ortvin"]
[Black "Byrne, Robert Eugene"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nb3 Nf6 6. Nc3 e6 7. Be3 Qc7 8. Bd3 a6 9. f4 b5 10. e5 b4 11. Ne4 Nd5 12. Bd2 d6 13. Nxd6+ Bxd6 14. exd6 Qxd6 15. O-O O-O 16. a3 Bb7 17. axb4 Ncxb4 18. Bxb4 Qxb4 19. Qe1 Qxe1 20. Raxe1 Nb4 21. Nc5 Nxd3 22. Nxd3 Rac8 23. Rf2 Rfd8 24. Ra1 Rd5 25. Rd2 h6 26. Kf2 g5 27. Ra4 Kg7 28. Ke3 Kf6 29. g3 Ke7 30. Rd4 f6 31. Rxd5 Bxd5 32. b3 gxf4+ 33. Nxf4 Bc6 34. Nd3 e5 35. c4 a5 36. Ra2 Ra8 37. Nc5 f5 38. Nd3 Kf6 39. Nc5 h5 40. Rd2 Ke7 41. Nd3 1/2-1/2