[Event "Capablanca Memorial-10"]
[Site "Cienfuegos"]
[Date "1973.02.22"]
[Round "4"]
[White "Peev, Peicho Chonev"]
[Black "Spassov, Liuben"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. g3 Bg7 8. Bg2 O-O 9. O-O a6 10. a4 Nbd7 11. Nd2 Re8 12. Nc4 Ne5 13. Na3 Rb8 14. h3 Nh5 15. Bd2 f5 16. e3 Bd7 17. Qe2 Nf7 18. Qd3 g5 19. Qe2 Nf6 20. f4 b5 21. axb5 axb5 22. Naxb5 Ne4 23. Bxe4 fxe4 24. Kh2 gxf4 25. exf4 Rb6 26. Bc1 Nh6 27. Na3 Nf5 28. Qg2 Rb3 29. Nab1 Rb4 30. Ra6 Rd4 31. Re1 Rd3 32. Ne2 Bb5 33. Ra3 Bc4 34. Nbc3 Qe7 35. Ra4 Bxc3 36. Nxc3 Rd4 37. Be3 Bd3 38. Raa1 Rb4 39. Rad1 Nd4 40. Bxd4 Rxd4 41. Re3 Rb8 42. g4 Rbb4 43. Rde1 Kf8 44. Qf2 Qb7 45. Qh4 Rxb2+ 46. Kg3 Rb3 47. Qf6+ Kg8 48. Qg5+ Qg7 49. Qd8+ Qf8 50. Qg5+ 1/2-1/2