[Event "Interzonal-11b"]
[Site "Rio de Janeiro"]
[Date "1979.09.29"]
[Round "6"]
[White "Vaganian, Rafael A"]
[Black "Portisch, Lajos"]
[Result "0-1"]
[WhiteElo "2570"]
[BlackElo "2640"]

1. c4 c5 2. Nc3 Nf6 3. g3 e6 4. Nf3 d5 5. cxd5 Nxd5 6. Bg2 Nc6 7. O-O Be7 8. d4 O-O 9. e4 Ndb4 10. dxc5 Bxc5 11. a3 Nd3 12. Qe2 Nxc1 13. Raxc1 e5 14. Rfd1 Bd4 15. h3 a6 16. Nxd4 Nxd4 17. Qe3 Be6 18. f4 f6 19. Ne2 Nxe2+ 20. Qxe2 Qb6+ 21. Qf2 Qb3 22. Rd6 Rac8 23. Rxc8 Rxc8 24. f5 Bf7 25. Qb6 Rc1+ 26. Kh2 Qxb6 27. Rxb6 Rc7 28. g4 Be8 29. Kg3 Bb5 30. Kf3 Rd7 31. h4 h6 32. Kg3 Kf7 33. Bf3 Bc6 34. Kf2 Rd2+ 35. Ke3 Rh2 36. h5 Ke7 37. Rb3 Bb5 38. Bd1 Kd8 39. Bf3 Kc7 40. Bd1 Bc6 41. Bf3 a5 42. Bd1 Rg2 43. Bf3 Rc2 44. Bd1 Rh2 45. Bf3 b6 46. Be2 Bxe4 47. Rc3+ Kb7 48. Rc1 Rh1 49. Bf1 Bd5 50. Rd1 Bc6 51. b4 axb4 52. axb4 b5 53. Kf2 Rh2+ 54. Kg3 Rb2 55. Rd8 Rb3+ 56. Kh4 Rxb4 57. Rg8 Rd4 58. Rxg7+ Kb6 59. Bxb5 Kxb5 60. Kg3 Rd3+ 61. Kh2 Kc5 62. Rg6 Bf3 63. g5 fxg5 64. Rxh6 Bg4 65. f6 Be6 66. Rh8 g4 67. h6 g3+ 68. Kg1 Bh3 0-1