[Event "Interzonal-10a"]
[Site "Biel"]
[Date "1976.07.16"]
[Round "5"]
[White "Castro Rojas, Oscar Humberto"]
[Black "Liberzon, Vladimir Mikhailovi"]
[Result "1/2-1/2"]
[WhiteElo "2380"]
[BlackElo "2540"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. f4 a5 10. a4 Nb4 11. Be3 Be6 12. Rc1 exf4 13. Bxf4 Nxc2 14. Nxa5 Qxa5 15. Qxc2 Qb6+ 16. Kh1 Bb3 17. Qd2 Bxa4 18. e5 dxe5 19. Nxa4 Rxa4 20. Bxe5 Ne4 21. Qd7 Nf2+ 22. Rxf2 Qxf2 23. Qxa4 Qxe2 24. Bc3 b5 25. Qf4 Rd8 26. h3 f6 27. Rg1 Rd1 28. Bb4 Bxb4 29. Qxb4 Rxg1+ 30. Kxg1 h5 31. h4 Kf7 32. b3 Ke6 33. Qc3 Kd5 34. b4 Qd1+ 35. Kh2 Qd4 36. Qb3+ Ke5 37. g3 Qf2+ 38. Kh3 Qf1+ 39. Kh2 Qe2+ 40. Kh3 Kd4 41. Qf7 Qg4+ 42. Kh2 Ke3 43. Qc7 Qe2+ 44. Kh3 Qf1+ 45. Kh2 Qf2+ 46. Kh3 Qf5+ 47. Kh2 Qf2+ 48. Kh3 Qf1+ 49. Kh2 Qe2+ 50. Kh3 Qg4+ 51. Kh2 Qxb4 52. Qxg7 Qb2+ 53. Kh3 Qe5 54. g4 Qe4 55. Qa7+ Kd3 56. Qa3+ Kc4 57. Qa2+ Kc5 58. Qf2+ Kd5 59. gxh5 Qe6+ 60. Kg3 Qe5+ 61. Kg4 Qe4+ 62. Kh3 1/2-1/2