[Event "Olympiad-20 Final D"]
[Site "Skopje"]
[Date "1972.10.08"]
[Round "11"]
[White "Clua Ballague, Miguel"]
[Black "Petersen, Hans"]
[Result "0-1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4 Bg4 10. d5 Na5 11. Bc2 c5 12. Nbd2 Ne8 13. Nf1 g6 14. Bh6 Ng7 15. h3 Bxf3 16. Qxf3 Bg5 17. Bxg5 Qxg5 18. Ne3 f5 19. b3 fxe4 20. Qxe4 Rf4 21. Qd3 Raf8 22. Rf1 c4 23. Qe2 Nh5 24. Kh2 R4f7 25. Qg4 Qf4+ 26. Qxf4 Nxf4 27. Rae1 Kg7 28. b4 Nb7 29. Kg1 h5 30. a4 Nd8 31. axb5 axb5 32. Ra1 Ne2+ 33. Kh2 Nxc3 34. f3 Ne2 35. Ra6 Rd7 36. g4 hxg4 37. hxg4 Nd4 38. Be4 Rh8+ 39. Kg2 Nf7 40. Rh1 Rxh1 41. Kxh1 Ng5 42. Kg2 Nxe4 43. fxe4 Kf6 44. Nd1 Kg5 45. Kg3 Ne2+ 46. Kf3 c3 47. Kxe2 c2 48. Rc6 cxd1=Q+ 49. Kxd1 Kxg4 50. Ke2 Kf4 51. Kd3 g5 52. Rc1 g4 53. Rf1+ Kg3 54. Rf6 Kg2 55. Ke3 g3 56. Ke2 Kg1 57. Rg6 g2 58. Rh6 0-1