[Event "Olympiad-23"]
[Site "Buenos Aires"]
[Date "1978.11.10"]
[Round "14"]
[White "Helmers, Knut Jaran"]
[Black "Cooper, John Grantley"]
[Result "1-0"]
[WhiteElo "2345"]
[BlackElo "2315"]

1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O Ne4 7. Ne5 f5 8. Nd2 d6 9. Nef3 Qb6 10. Qc2 Nxd2 11. Bxd2 Nd7 12. Bc3 Qa6 13. b3 e5 14. dxe5 dxe5 15. Qb2 Re8 16. Rad1 b5 17. cxb5 Qxb5 18. Rfe1 Nb6 19. e4 fxe4 20. Rxe4 Bf5 21. Ree1 Bg4 22. h3 Bxf3 23. Bxf3 Qc5 24. Bg2 a5 25. Rc1 Qd6 26. Qd2 Qf8 27. Bxc6 Bh6 28. Qe2 Bxc1 29. Rxc1 Rac8 30. Bxe8 Qxe8 31. Bb2 Rxc1+ 32. Bxc1 a4 33. Bb2 axb3 34. axb3 e4 35. Qe3 Qe6 36. Kg2 h5 37. Qd4 Kf7 38. b4 Nc4 39. Qa7+ Ke8 40. Qb8+ Ke7 41. Bd4 e3 42. Qb7+ Ke8 43. Bxe3 Nxe3+ 44. fxe3 g5 45. Qb5+ Kf7 46. Qxg5 Qe4+ 47. Kf2 Qc2+ 48. Kf3 Qd1+ 49. Ke4 Qb1+ 50. Kd5 Qa2+ 51. Kc5 Qa7+ 52. Kc4 Qa6+ 53. Qb5 Qa2+ 54. Kc5 Qa7+ 55. Kc6 Kf6 56. Qb6 1-0