[Event "Interzonal-10a"]
[Site "Biel"]
[Date "1976.07.31"]
[Round "15"]
[White "Liberzon, Vladimir Mikhailovi"]
[Black "Diaz Diaz, Joaquin Carlos"]
[Result "1/2-1/2"]
[WhiteElo "2540"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f3 O-O 6. Be3 Nbd7 7. Nh3 e5 8. d5 Nc5 9. Nf2 Nh5 10. b4 Na6 11. a3 c5 12. dxc6 bxc6 13. b5 Nb8 14. Qd2 f5 15. bxc6 Be6 16. Bg5 Qa5 17. Nb5 Qxd2+ 18. Bxd2 Nxc6 19. Nc7 Nd4 20. Bd3 Rac8 21. Nxe6 Nxe6 22. O-O Nhf4 23. Bxf4 Nxf4 24. Rfd1 Nxd3 25. Rxd3 Rfd8 26. Rc1 Kf7 27. Rc2 Ke7 28. Nd1 Ke6 29. Rb3 Bh6 30. Kf2 Rd7 31. Ke2 Rdc7 32. Nb2 Bf4 33. g3 Bg5 34. Rb4 h5 35. h3 fxe4 36. fxe4 Rf8 37. Nd1 h4 38. Rb3 Rcf7 39. Rcc3 Rf1 40. Rf3 R1xf3 41. Rxf3 Rxf3 42. Kxf3 hxg3 43. Kxg3 Bc1 44. a4 Kd7 45. Kf3 Kc6 46. Ke2 Kc5 47. Kd3 a5 48. Kc3 Ba3 49. Ne3 Bb4+ 50. Kd3 Be1 51. Nc2 Bf2 52. Kc3 Bd4+ 53. Kb3 Bf2 54. Kc3 Bh4 55. Kd3 Bf2 1/2-1/2