[Event "Olympiad-20 Preliminaries A"]
[Site "Skopje"]
[Date "1972.09.20"]
[Round "2"]
[White "Alvarez, Franklin"]
[Black "Beyen, Roland"]
[Result "0-1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O Nf6 5. c3 O-O 6. d4 Bb6 7. Bg5 h6 8. Bxf6 Qxf6 9. Bxc6 Qxc6 10. Nxe5 Qxe4 11. Nd2 Qf5 12. Ndc4 d6 13. Nxb6 axb6 14. Nc4 Be6 15. Ne3 Qf6 16. Qc2 Ra5 17. d5 Bd7 18. b3 Rfa8 19. Rfd1 c5 20. Qd2 Ra3 21. Nc4 R8a6 22. Ne3 b5 23. Rdc1 Ra8 24. Qc2 Qg5 25. Rd1 f5 26. Nf1 f4 27. Qd2 Bg4 28. Re1 Bf3 29. g3 Rf8 30. Qd3 Qh5 31. Nd2 Bxd5 32. Qxb5 Raa8 33. Qd3 Rf5 34. Ne4 Raf8 35. Qf1 fxg3 36. Nxg3 Qf3 37. Re3 Qg4 38. Qe2 Rf3 39. Rxf3 Bxf3 40. Qf1 h5 41. h3 Qg5 42. h4 Qxh4 43. Re1 Qg5 44. Qh3 h4 45. Qe6+ Kh8 46. Qh3 Bg4 47. Ne4 Qh5 48. Qh2 Re8 49. Re3 Bf3 50. Kf1 Bxe4 0-1