[Event "Pan American Championship"]
[Site "Santa Cruz BOL"]
[Date "1977.11.??"]
[EventDate "?"]
[Round "2"]
[Result "1/2-1/2"]
[White "de Leon, Otto"]
[Black "Jose Zarco"]
[ECO "B06"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "132"]

1. e4 g6 2. d4 Bg7 3. f4 d6 4. Be2 c5 5. c3 cxd4 6. cxd4 Qb6 7. e5 dxe5 8.
dxe5 Nh6 9. Nc3 O-O 10. Nd5 Qd8 11. Nf3 Be6 12. Ne3 Qa5+ 13. Qd2 Qb6 14. Qd4
Qc7 15. O-O Nc6 16. Qc5 Rab8 17. Ng5 Bf5 18. Rd1 Qc8 19. Qa3 Rd8 20. Bd2 Nd4
21. Re1 f6 22. exf6 exf6 23. Nxf5 gxf5 24. Nh3 Nc2 25. Qb3+ Kh8 26. Bc3 Nxa1
27. Rxa1 Re8 28. Bf3 b6 29. g3 Qc7 30. Nf2 Re3 31. Kg2 Rbe8 32. Qd5 Rd8 33.
Qb3 Rde8 34. Qd5 Qf7 35. Qc6 Qe6 36. Qb7 Ng4 37. h3 Nxf2 38. Kxf2 h6 39. a4
Bf8 40. Bd5 Re2+ 41. Kf1 Qd6 42. Qf7 Bg7 43. Be5 R2xe5 44. fxe5 Qxe5 45. Bf3
Qe3 46. Qh5 Re5 47. h4 f4 48. Qg4 fxg3 49. Qxg3 f5 50. Rd1 Bf6 51. Rd6 Re8
52. Qf2 Qxf2+ 53. Kxf2 Bxh4+ 54. Kg2 Bg5 55. Bh5 Rc8 56. Bd1 Rc7 57. Rd5 Rc1
58. b4 Kg7 59. Bh5 Kf6 60. Rd7 Rc4 61. Rxa7 Rxb4 62. a5 bxa5 63. Rxa5 Be3
64. Be2 Bb6 65. Rb5 Rxb5 66. Bxb5 Kg5 1/2-1/2