[Event "Olympiad-15 Preliminaries B"]
[Site "Varna"]
[Date "1962.09.16"]
[Round "1"]
[White "Rivera, D"]
[Black "Tringov, Georgi Petrov"]
[Result "0-1"]
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. a3 Be7 8. O-O O-O 9. Ba2 b5 10. f4 Bb7 11. f5 e5 12. Nde2 Nbd7 13. Ng3 Rc8 14. Bg5 Nb6 15. Nh5 Nc4 16. Bxf6 Bxf6 17. Nxf6+ Qxf6 18. Bxc4 Rxc4 19. Qd3 Rfc8 20. Rad1 Rd4 21. Qe2 h6 22. Rf3 Rxd1+ 23. Qxd1 Rc4 24. b3 Rd4 25. Qe2 Qg5 26. Re3 d5 27. exd5 f6 28. Qf3 Rf4 29. Qe2 Qxf5 30. Rd3 Rd4 31. Qe3 Rxd3 32. cxd3 Qc8 33. d4 Qc7 34. dxe5 fxe5 35. Qd3 Qc5+ 36. Kf1 Qxa3 37. Ne2 Qa1+ 38. Kf2 Qa3 39. d6 Bc6 40. h3 Qc5+ 41. Kf1 a5 42. Ke1 Qb4+ 43. Kf2 e4 44. Qd1 e3+ 45. Kxe3 Qe4+ 46. Kd2 Qd5+ 47. Kc1 Qxd1+ 48. Kxd1 Kf7 49. Nd4 Bd7 50. g4 Kf6 51. Kd2 Ke5 52. Ke3 Kxd6 53. Kf4 Kd5 54. Nc2 Be6 55. h4 Kc5 56. Na1 Kb4 57. Nc2+ Kc3 0-1