[Event "Interzonal-06"]
[Site "Amsterdam"]
[Date "1964.05.29"]
[Round "8"]
[White "Perez Perez, Francisco Jose"]
[Black "Tringov, Georgi Petrov"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Qa5+ 6. Nc3 Qxb5 7. Nxb5 Nxd4 8. Nfxd4 Kd8 9. Bg5 Nf6 10. f3 Bd7 11. a4 a6 12. Nc3 Rc8 13. O-O e6 14. Rfd1 Be7 15. Rd2 Ne8 16. Bxe7+ Kxe7 17. Nd1 Nf6 18. Ne3 Rhd8 19. c4 g6 20. b3 Be8 21. g4 Nd7 22. Kf2 Nc5 23. Rb1 b6 24. Kg3 h6 25. h4 Rb8 26. h5 g5 27. Kf2 Kf6 28. Ndf5 exf5 29. Nxf5 b5 30. cxb5 axb5 31. a5 b4 32. Rbd1 Ra8 33. Rxd6+ Rxd6 34. Rxd6+ Ne6 35. a6 Rc8 36. Nxh6 Rc2+ 37. Ke1 Rb2 38. Nf5 Rxb3 39. Rd5 Nc7 40. Rd6+ Ne6 41. Rd5 Nc7 1/2-1/2