[Event "Palma de Mallorca Gran Torneo-07"]
[Site "Palma de Mallorca"]
[Date "1971.12.12"]
[Round "11"]
[White "Andersson, Ulf"]
[Black "Portisch, Lajos"]
[Result "1/2-1/2"]

1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 g6 5. d4 Bg7 6. O-O O-O 7. Nc3 Ne4 8. Nxe4 Bxe4 9. Be3 d5 10. Rc1 dxc4 11. Rxc4 c6 12. Rc1 Qd5 13. Qa4 Nd7 14. Bh3 b5 15. Qa6 Bxf3 16. exf3 Nb6 17. f4 Qd6 18. Rc2 Nc4 19. b3 Nxe3 20. fxe3 c5 21. Qxd6 exd6 22. dxc5 dxc5 23. Rxc5 Rfe8 24. Rxb5 Rxe3 25. Rd1 Rae8 26. Bf1 Re1 27. Rbd5 Rxd1 28. Rxd1 Bf8 29. Bc4 Bc5+ 30. Kg2 Re7 31. Rd5 Ba3 32. Kf3 Kg7 33. g4 h6 34. h4 Bc1 35. Rd3 Ba3 36. h5 gxh5 37. gxh5 Kf6 38. Rd5 Bc1 39. Rd6+ Kg7 40. Bd3 Ba3 41. Rd5 Bb4 42. Be4 Ba3 43. Rd2 Re8 44. Rd4 Re7 45. Ra4 Bc5 46. Rc4 Bb6 47. Rc2 Rc7 48. Rd2 Rc3+ 49. Kg4 Rc1 50. Bd5 Rc7 51. Bc4 Bc5 52. Kf5 Re7 53. Rd5 Bb4 54. Rb5 Bd2 55. a3 Rc7 56. Ke4 Re7+ 57. Kf5 Rd7 58. Ke5 Re7+ 59. Kf5 Rd7 60. Kg4 Rd4 61. Rf5 Rd7 62. Kf3 Bc3 63. Ke3 Ba1 64. b4 Bd4+ 65. Ke2 Bb2 66. a4 Bc3 67. b5 Ba5 68. Bd5 Re7+ 69. Kd3 Rc7 70. Ke4 Bb6 71. Kd3 Ba5 72. Bc4 Rd7+ 73. Kc2 Rd2+ 74. Kb3 Rd7 75. Rc5 Bc7 76. f5 Kf6 77. Rc6+ Kg5 78. Kb4 Bb6 79. a5 Be3 80. b6 axb6 81. axb6 Rb7 1/2-1/2