[Event "Olympiad-25"]
[Site "Luzern"]
[Date "1982.10.30"]
[Round "1"]
[White "Duchesne, Edward L"]
[Black "Cain, Celestino"]
[Result "1/2-1/2"]
[WhiteElo "2215"]

1. c4 e5 2. Nc3 Nc6 3. e4 Bc5 4. g3 Nge7 5. Bg2 O-O 6. Nge2 d6 7. O-O f5 8. d3 fxe4 9. Nxe4 Bb6 10. N2c3 Qe8 11. Be3 Nd4 12. b4 Qg6 13. c5 dxc5 14. bxc5 Ba5 15. Bxd4 exd4 16. Nb5 Nc6 17. Qa4 Rd8 18. f4 Be6 19. Rad1 h6 20. Rf2 Kh8 21. Rdf1 Bf5 22. Na3 Qe6 23. Nc4 Bb4 24. Rb1 Bxe4 25. Bxe4 Bxc5 26. Rxb7 Ne7 27. Rxc7 Rac8 28. Rxc8 Rxc8 29. Qd1 Bd6 30. Qh5 Rf8 31. f5 Qf6 32. Nxd6 Qxd6 33. f6 Rxf6 34. Rxf6 gxf6 35. Qxh6+ Kg8 36. Qh7+ Kf8 37. Qh8+ Kf7 38. Qh5+ Kg7 39. Qh7+ Kf8 40. Qh8+ Kf7 41. Qh5+ Ke6 42. Qa5 f5 43. Bf3 Qb8 44. Qa6+ Kf7 45. Qc4+ Kf8 46. Bh5 Qb1+ 47. Kg2 Qb2+ 48. Kh3 Kg7 49. Be8 Qe2 50. Qxd4+ Kf8 51. Bb5 Nd5 52. Qh8+ Ke7 53. Bc4 Qg4+ 1/2-1/2