[Event "Interzonal-06"]
[Site "Amsterdam"]
[Date "1964.05.24"]
[Round "4"]
[White "Perez Perez, Francisco Jose"]
[Black "Rossetto, Hector"]
[Result "0-1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5 Ne4 5. Bf4 Nxc3 6. bxc3 Bg7 7. e3 O-O 8. Qb3 dxc4 9. Bxc4 Nc6 10. Nf3 Na5 11. Qb4 Nxc4 12. Qxc4 c6 13. O-O Qa5 14. Be5 Be6 15. Qb4 Qxb4 16. cxb4 f6 17. Bg3 Kf7 18. Nd2 h5 19. Rfc1 Bd5 20. Kf1 g5 21. h4 Bh6 22. hxg5 Bxg5 23. f4 Bh6 24. e4 Be6 25. Nf3 Rg8 26. Kf2 Rg4 27. Nh2 Bxf4 28. Nxg4 Bxc1 29. Rxc1 hxg4 30. a3 Rh8 31. Ke3 Rh5 32. Kd2 f5 33. Ke3 fxe4 34. Kxe4 Rf5 35. Bc7 Kg6 36. Ke3 Bd5 37. Rg1 Kf7 38. Bb8 a6 39. Bc7 Ke6 40. Bf4 Kd7 41. Bg3 Rf8 42. Bh4 Kc7 43. Kd3 Kb6 44. Ke3 e6 45. a4 a5 46. Be1 axb4 47. Bxb4 Rf5 48. Bc3 Ka6 49. Bb4 e5 50. dxe5 Rxe5+ 51. Kd3 Re4 52. Rb1 b6 53. a5 c5 54. Ba3 Kxa5 55. Bc1 Rd4+ 56. Kc3 Bxg2 57. Be3 Ra4 58. Bf2 Bd5 59. Kd2 Ra2+ 0-1