[Event "Interzonal-10a"]
[Site "Biel"]
[Date "1976.07.17"]
[Round "6"]
[White "Larsen, Bent"]
[Black "Portisch, Lajos"]
[Result "1-0"]
[WhiteElo "2625"]
[BlackElo "2625"]
1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d3 d6 5. g3 g6 6. Bg2 Bg7 7. Rb1 a5 8. a3 Nd4 9. Nd2 O-O 10. O-O c6 11. b4 axb4 12. axb4 Bg4 13. h3 Bd7 14. Kh2 Nh5 15. c5 d5 16. e3 Ne6 17. Na4 f5 18. Nb6 Rb8 19. e4 fxe4 20. dxe4 Nc7 21. Nxd7 Qxd7 22. Nc4 Qe6 23. Nb6 Nf6 24. exd5 Ncxd5 25. Qb3 Rbe8 26. Nxd5 Nxd5 27. Bd2 Kh8 28. Rbe1 Qd7 29. Bc1 Nc7 30. Qc4 Nb5 31. Bb2 Qc7 32. Kg1 Qf7 33. Qxf7 Rxf7 34. Re4 Rd8 35. Rfe1 Rd2 36. R4e2 Rxe2 37. Rxe2 Nd4 38. Re4 g5 39. Re3 Rf8 40. Be4 Bf6 41. Kf1 h6 42. Ra3 Rb8 43. Ra7 Nb5 44. Ra1 Nd4 45. Ke1 Kg8 46. Ra7 Nb5 47. Ra2 Kf7 48. Ke2 Ke6 49. Ke3 Nc7 50. Kd3 Rd8+ 51. Kc2 Nb5 52. f3 Nd4+ 53. Bxd4 Rxd4 54. Kb3 Be7 55. Ra7 Rd7 56. g4 Rc7 57. Ra8 Kf7 58. Rb8 Bf6 59. Ka4 Rd7 60. Bf5 Re7 61. Bc8 e4 62. fxe4 Rxe4 63. Rxb7+ Be7 64. Bd7 Re3 65. Bxc6 Rxh3 66. Bd5+ Kf6 67. Rd7 1-0