[Event "Olympiad-21 Final B"]
[Site "Nice"]
[Date "1974.06.28"]
[Round "13"]
[White "Castro Rojas, Oscar Humberto"]
[Black "Suttles, Duncan"]
[Result "1/2-1/2"]

1. e4 g6 2. Nf3 Bg7 3. Bc4 d6 4. O-O Nf6 5. Qe2 O-O 6. d4 Bg4 7. e5 Ne8 8. Rd1 Nc6 9. Bf4 Qc8 10. Bd5 Qf5 11. Bg3 dxe5 12. Bxc6 bxc6 13. dxe5 Rb8 14. c4 Bxf3 15. gxf3 h5 16. h4 Bh6 17. Nc3 Ng7 18. b3 Ne6 19. Qe4 Rbd8 20. Ne2 c5 21. Kg2 a5 22. Qxf5 gxf5 23. f4 Kh7 24. Kf3 c6 25. Ke3 Rg8 26. Rab1 Rge8 27. f3 Nf8 28. Be1 Ng6 29. a4 Nxe5 30. Bxa5 Rxd1 31. Rxd1 Rb8 32. Kf2 Ng6 33. Bc3 Rxb3 34. a5 Nxf4 35. a6 Nxe2 36. Kxe2 Rxc3 37. Ra1 Rc2+ 38. Kf1 Bg7 39. Ra3 Rc1+ 40. Ke2 Rc2+ 41. Kd1 Rxc4 42. a7 Rd4+ 43. Ke2 Rd8 44. a8=Q Rxa8 45. Rxa8 Bf6 46. Rc8 c4 47. Rxc6 c3 48. Rxf6 exf6 49. f4 Kg8 50. Kd3 Kf8 51. Kxc3 Ke7 52. Kc4 Ke8 53. Kc5 1/2-1/2