[Event "Olympiad-18 Preliminaries B"]
[Site "Lugano"]
[Date "1968.10.18"]
[Round "1"]
[White "Larsen, Bent"]
[Black "Dueckstein, Andreas"]
[Result "1/2-1/2"]

1. g3 e5 2. Bg2 d5 3. c4 Nf6 4. cxd5 Nxd5 5. Nc3 Be6 6. Nf3 Nc6 7. O-O Be7 8. d4 exd4 9. Nb5 Qd7 10. Nfxd4 Nxd4 11. Nxd4 Bh3 12. Qb3 Bxg2 13. Kxg2 O-O-O 14. Rd1 Nb6 15. e4 Qa4 16. Be3 Qxb3 17. axb3 Bf6 18. f4 Bxd4 19. Bxd4 f6 20. Kf3 Rhe8 21. g4 Re6 22. Bc3 Rxd1 23. Rxd1 Nd7 24. h4 Rd6 25. Rxd6 cxd6 26. g5 Kd8 27. Bd4 Ke7 28. Ke3 a6 29. Kd3 b5 30. Kc3 Nb8 31. f5 Nc6 32. Be3 Kf7 33. Bf4 Ke7 34. h5 fxg5 35. Bxg5+ Kd7 36. Bd2 Ke7 37. Kd3 Kf7 38. Bc3 Kf8 39. b4 Kf7 40. Ke3 Kf8 41. Kf4 Kf7 42. Kg5 h6+ 43. Kf4 Ne7 44. Kf3 Nc6 45. Ke3 Kf8 46. e5 Nxe5 47. Ke4 Ke8 48. Kd5 Kd7 49. Bd4 Nd3 50. Bxg7 Nf4+ 51. Ke4 Nxh5 52. Bxh6 Nf6+ 53. Kd4 Ne8 54. Bg5 Nc7 55. Ke4 Ke8 56. Bh4 Kd7 57. Bf6 Ne8 58. Bg5 Nc7 59. Bh4 Ke8 60. Bg3 Ke7 61. Be1 Kf7 62. Bd2 Kf6 63. Be3 Ke7 64. Bg5+ Kd7 65. Kd4 Ne8 66. Kd5 Nc7+ 67. Ke4 Ke8 68. Bh4 Kd7 69. Bf6 Ne8 70. Bd4 Ke7 71. Kd5 1/2-1/2