[Event "Interzonal-10a"]
[Site "Biel"]
[Date "1976.07.21"]
[Round "8"]
[White "Diaz Diaz, Joaquin Carlos"]
[Black "Gulko, Boris F"]
[Result "0-1"]
[BlackElo "2530"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 Qb6 7. Nb3 e6 8. h4 Bd7 9. h5 h6 10. Bxf6 gxf6 11. Qd2 Rg8 12. O-O-O O-O-O 13. Rh3 Kb8 14. a3 Bc8 15. f4 Be7 16. Rd3 Rg4 17. g3 Rdg8 18. Qh2 Rd8 19. Be2 Rg7 20. Bf3 a6 21. Kb1 Rgg8 22. Na4 Qb5 23. Nc3 Qb6 24. Na4 Qc7 25. Nc3 b5 26. Na2 a5 27. Nd4 Nxd4 28. Rxd4 Bb7 29. R4d3 Rc8 30. Rc3 Qb6 31. Rb3 a4 32. Rbd3 Rc4 33. Qg2 Rgc8 34. c3 Qc5 35. Nb4 f5 36. exf5 Bxf3 37. Qxf3 Qxf5 38. Re1 Bf8 39. Ka2 Ka7 40. Nc2 R8c5 41. Nd4 Qxh5 42. Qxh5 Rxh5 43. f5 e5 44. Nxb5+ Kb7 45. Nxd6+ Bxd6 46. Rxd6 Rxf5 47. Rxh6 Rg4 48. Re3 f6 49. Rh1 Rf2 50. Rd1 e4 51. Rd4 f5 52. Rb4+ Kc6 53. Rxa4 Rf3 54. Ra6+ Kb7 55. Rxf3 exf3 56. Rf6 f4 0-1