[Event "Olympiad-21 Final B"]
[Site "Nice"]
[Date "1974.06.29"]
[Round "14"]
[White "McKay, Roderick M"]
[Black "Castro Rojas, Oscar Humberto"]
[Result "1-0"]

1. e4 Nc6 2. Nf3 d6 3. d4 Nf6 4. Nc3 Bg4 5. d5 Nb8 6. Bg5 Nbd7 7. Qd2 e5 8. dxe6 fxe6 9. Be2 Be7 10. O-O-O e5 11. Be3 Be6 12. h3 Nb6 13. Ng5 Bg8 14. f4 Nc4 15. Bxc4 Bxc4 16. fxe5 dxe5 17. Qf2 Bd6 18. Nd5 O-O 19. Ne6 Nxe4 20. Qxf8+ Qxf8 21. Nxf8 Rxf8 22. a3 Nf2 23. Bxf2 Rxf2 24. Ne3 Bb5 25. Rd2 Rf8 26. c4 Bc5 27. Re1 Bc6 28. Nd5 Ba4 29. Rd3 Rf2 30. Rxe5 Bd6 31. Ne7+ Kh8 32. Rf5 Rc2+ 33. Kb1 g6 34. Ra5 Rxc4 35. b3 Re4 36. Nxg6+ Kg7 37. Rxa4 Rxa4 38. bxa4 hxg6 39. Kb2 a5 40. Rf3 b6 41. Kb3 Kh6 42. Kc4 Kg5 43. Kd5 Bf4 44. Ke4 Bd6 45. Rf7 Kh4 46. Kf3 Kg5 47. g3 1-0