[Event "Interzonal-09b"]
[Site "Petropolis"]
[Date "1973.08.13"]
[Round "15"]
[White "Bronstein, David Ionovich"]
[Black "Tan, Lian Ann"]
[Result "1-0"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Rc1 c6 7. Nf3 Nbd7 8. Qc2 Re8 9. a3
dxc4 10. Bxc4 Nd5 11. Bxe7 Qxe7 12. Ne2 e5 13. Bxd5 cxd5 14. Nc3 Nb6 15. Nxe5 f6 16. Nd3
Bf5 17. O-O Rac8 18. Qe2 Bxd3 19. Qxd3 Qd7 20. Rc2 Rc6 21. Rfc1 Rec8 22. Nb1 Nc4 23. b3
Nd6 24. a4 b5 25. axb5 Rxc2 26. Rxc2 Rxc2 27. Qxc2 Qxb5 28. f3 g6 29. Nc3 Qa5 30. Kf2 Kg7
31. Ne2 Nf5 32. g4 Nh4 33. Qc5 Qd2 34. Qe7+ Kg8 35. Qxf6 Ng2 36. Qd8+ Kg7 37. Qe7+ Kg8 38.
Kxg2 Qxe2+ 39. Kg3 Qb5 40. b4 a6 41. h4 Qb8+ 42. Kh3 Qb5 43. Kg3 Qb8+ 44. Qe5 Qxb4 45.
Qxd5+ Kg7 46. Qd7+ Kg8 47. Qc8+ Kg7 48. Qxa6 Qe1+ 49. Kf4 Qxh4 50. Qa7+ Kg8 51. Qb8+ Kg7
52. Qe5+ Kg8 53. Ke4 h5 54. d5 hxg4 55. Qe6+ Kg7 56. fxg4 Qh1+ 57. Kd3 Qd1+ 58. Kc3 Qc1+
59. Kb4 Qb2+ 60. Ka5 Qc3+ 61. Kb6 Qb4+ 62. Ka7 Qa5+ 63. Kb7 Qb5+ 64. Kc8 Qc4+ 65. Kd8 Qa2
66. g5 Qa5+ 67. Ke8 Qa8+ 68. Ke7 Qa7+ 69. Qd7 Qc5+ 70. Ke6+ 1-0