[Event "San Juan"]
[Site "San Juan"]
[Date "1969.10.08"]
[Round "1"]
[White "Larsen, Bent"]
[Black "Byrne, Robert Eugene"]
[Result "1-0"]

1. e4 c5 2. Nc3 Nc6 3. Nge2 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 Nf6 7. Bc4 O-O 8. Bb3 d6 9. f3 Bd7 10. Qd2 a5 11. a4 Nxd4 12. Bxd4 Be6 13. Bxe6 fxe6 14. O-O Nd7 15. Bxg7 Kxg7 16. Nb5 e5 17. g3 Rc8 18. b3 Qb6+ 19. Kg2 Qc5 20. Rf2 b6 21. Re1 Nf6 22. Re3 Qb4 23. Qxb4 axb4 24. c3 bxc3 25. Rc2 Nd7 26. Rexc3 Rxc3 27. Rxc3 Nc5 28. Nc7 Kf7 29. Nd5 Rb8 30. b4 Nd7 31. Rc7 Ke8 32. h4 e6 33. Nc3 Kd8 34. Rc6 Rc8 35. Rxc8+ Kxc8 36. Nb5 d5 37. Kf2 Kb7 38. Nd6+ Kc7 39. Nf7 Kc6 40. Ke3 Kc7 41. Ng5 Nf8 42. Kd3 Kc6 43. f4 exf4 44. gxf4 Kc7 45. e5 Kb7 46. Ke3 Kc7 47. Nf3 Kd7 48. Nd4 Ke7 49. Kf3 h5 50. Ke3 Nd7 51. Nc6+ Ke8 52. Kd3 Kf7 53. Kd4 Ke8 54. a5 bxa5 55. bxa5 Kf7 56. a6 Nb6 57. Kc5 1-0