[Event "Interzonal-06"]
[Site "Amsterdam"]
[Date "1964.06.12"]
[Round "18"]
[White "Larsen, Bent"]
[Black "Tringov, Georgi Petrov"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. e5 dxe5 5. Nxe5 Nbd7 6. Nc4 Nb6 7. Nxb6 Qxb6 8. Bb5+ Bd7 9. Bxd7+ Nxd7 10. O-O e6 11. Re1 Be7 12. Qg4 O-O 13. d3 Nf6 14. Qg3 Rfe8 15. b3 Bd6 16. Qf3 Nd5 17. Bb2 Nxc3 18. Bxc3 Bf8 19. h4 Red8 20. Re5 f6 21. Re2 e5 22. a4 Qc7 23. h5 Qf7 24. Re3 b6 25. Qg4 a6 26. Rf3 Re8 27. Qf5 Qe6 28. h6 Qxf5 29. Rxf5 Kf7 30. hxg7 Bxg7 31. Re1 b5 32. Re4 c4 33. bxc4 bxc4 34. d4 exd4 35. Rxd4 Rac8 36. Rff4 Rc6 37. Kf1 h5 38. Rxc4 Rec8 39. Rxc6 Rxc6 40. Rf3 Rc4 41. a5 h4 42. Ke2 Rg4 43. Rh3 Bf8 44. g3 hxg3 45. fxg3 Kg7 46. Kd3 Bd6 47. Be1 Bc7 48. c4 Rg5 49. Kd4 Bxa5 50. Bxa5 Rxa5 51. c5 Kf7 52. Kd5 Ra3 53. c6 Ke7 54. Rh7+ Kd8 55. g4 Ra4 56. Rg7 a5 57. Rg6 1/2-1/2