Portisch, Lajos VS Besser, Hans 1967.??.??

[Event "Zonal Halle"]
[Site "Halle/Saale"]
[Date "1967.??.??"]
[Round "12"]
[White "Portisch, Lajos"]
[Black "Besser, Hans"]
[Result "1-0"]

1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. h3 Bxf3 5. Bxf3 e6 6. d3 Bc5 7. Nd2 Nf6 8. e4 Nbd7 9. Qe2 Qc7 10. c3 dxe4 11. Nxe4 Nxe4 12. Bxe4 O-O 13. d4 Bd6 14. Bd2 Nf6 15. Bc2 e5 16. dxe5 Bxe5 17. O-O Rfe8 18. Qf3 Qd7 19. Bg5 Qxh3 20. Bf5 Qh5 21. Qxh5 Nxh5 22. Bd7 Reb8 23. Rfe1 Bc7 24. Bg4 Nf6 25. Bxf6 gxf6 26. Re7 Bd6 27. Rd7 Rd8 28. Rxb7 Rdb8 29. Rd7 Bc5 30. b4 Bb6 31. Bf3 Rd8 32. Bxc6 Rxd7 33. Bxd7 Rd8 34. Rd1 Kf8 35. Kf1 Ke7 36. Ba4 Rxd1+ 37. Bxd1 f5 38. Bh5 f4 39. g4 h6 40. Ke2 Ke6 41. f3 f5 42. Kd3 Bf2 43. a3 Be1 44. gxf5+ Kxf5 45. Kd4 Ke6 46. Bg4+ Kd6 47. c4 Bd2 48. c5+ Kc7 49. Kc4 Bc1 50. a4 Bd2 51. Bh5 Be1 52. Bg6 Bd2 53. Kb5 Be3 54. a5 Bd2 55. a6 Bc3 56. Kc4 Bf6 57. b5 Bh4 58. Kd5 Bf2 59. Bf5 h5 60. b6+ Kb8 61. Kd6 1-0