[Event "Olympiad-19 Final E"]
[Site "Siegen"]
[Date "1970.09.23"]
[Round "9"]
[White "Thomsen, Frode Helvig"]
[Black "Clua Ballague, Miguel"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 Be7 6. c4 O-O 7. Nc3 d6 8. O-O Nc6 9. Nc2 Ne5 10. Be2 a6 11. f4 Nc6 12. Be3 b6 13. Bf3 Bb7 14. Qe2 Qc7 15. Rad1 Rac8 16. b3 Ne8 17. Na4 b5 18. Bb6 Qb8 19. cxb5 axb5 20. Qxb5 Ne5 21. Qe2 Nxf3+ 22. Rxf3 Qa8 23. Rc3 Nf6 24. Bd4 Rxc3 25. Nxc3 Nxe4 26. Nxe4 Bxe4 27. Ne3 Re8 28. Qb2 f6 29. a4 e5 30. fxe5 dxe5 31. Bb6 Bb4 32. a5 Qc6 33. Nc4 Bc5+ 34. Bxc5 Qxc5+ 35. Qf2 Qxf2+ 36. Kxf2 Bc2 37. Rd7 Bxb3 38. Nd6 Ba4 39. Nxe8 Bxd7 40. Nc7 Kf7 41. a6 Ke7 42. a7 Bc6 43. a8=Q Bxa8 44. Nxa8 f5 45. Ke3 Kd6 46. Nb6 g6 47. g3 h6 48. Nc4+ Kd5 49. Nd2 g5 50. Nf3 f4+ 51. gxf4 gxf4+ 52. Ke2 e4 53. Nd2 1/2-1/2