[Event "Olympiad-23"]
[Site "Buenos Aires"]
[Date "1978.11.08"]
[Round "13"]
[White "Riego Prieto, Victorio"]
[Black "Braga, Cicero Nogueira"]
[Result "0-1"]

1. e4 c5 2. g3 Nc6 3. Bg2 e6 4. Nc3 g6 5. d3 Bg7 6. Be3 d6 7. h4 h5 8. Nge2 Nd4 9. O-O Ne7 10. Nf4 Rb8 11. a4 a6 12. Qd2 b5 13. axb5 axb5 14. Nce2 O-O 15. Nc1 e5 16. Nfe2 Bg4 17. f3 Be6 18. c3 Ndc6 19. d4 cxd4 20. cxd4 d5 21. Rd1 dxe4 22. fxe4 exd4 23. Nxd4 Bg4 24. Nxc6 Nxc6 25. Ne2 Ne5 26. Qe1 Qf6 27. Bf4 Rbc8 28. Rd5 Qb6+ 29. Kh1 Rc2 30. Qg1 Qxg1+ 31. Nxg1 Nc4 32. Rxb5 Nxb2 33. Ra2 Be6 34. Ra3 Nd1 35. Be3 Bb2 36. Rxb2 Rxb2 37. Bd4 Nf2+ 38. Kh2 Ng4+ 39. Kh1 Rd2 40. Ra4 Rd8 41. Nf3 Rd1+ 42. Bg1 Nf2+ 43. Kh2 Ng4+ 44. Kh1 Rb8 45. Rd4 Nf2+ 46. Kh2 Ng4+ 47. Kh1 Rc1 48. Nd2 Kh7 49. Bf3 Ne5 50. Kg2 Rb2 51. Be2 Bg4 52. Rd8 Bxe2 53. Be3 Bg4 54. Bg5 Rc8 55. Rd5 Nf3 56. Kf2 Rcc2 0-1