[Event "URS-ch37 Final"]
[Site "Moscow"]
[Date "1969.09.15"]
[Round "7"]
[White "Polugaevsky, Lev"]
[Black "Zaitsev, Igor A"]
[Result "1/2-1/2"]

1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 Nc6 5. Be3 e5 6. d5 Nce7 7. g4 f6 8. h4 Nh6 9. g5 Nf7 10. gxf6 Bxf6 11. Qf3 Bg7 12. O-O-O Rf8 13. Qg3 Bh6 14. Bxh6 Nxh6 15. Nh3 Bxh3 16. Bxh3 Neg8 17. c5 Nf6 18. cxd6 cxd6 19. Kb1 Nh5 20. Qg5 Ng8 21. Qe3 Kf7 22. Rc1 Qa5 23. Bg4 Ngf6 24. Be6+ Kg7 25. Ne2 Rae8 26. Rhf1 Re7 27. f4 Qb4 28. fxe5 dxe5 29. Nc3 Nf4 30. Bh3 Ne8 31. Rfd1 Nd6 32. Bf1 a6 33. a3 Qa5 34. Rd2 Rc8 35. Rdc2 Rec7 36. Qg3 h6 37. Bh3 Nxe4 38. Qe3 Rxc3 39. Qxe4 Rxc2 40. Qxe5+ Kh7 41. Qe7+ Kg8 42. Be6+ Nxe6 43. Qxe6+ Kg7 44. Rxc2 Rxc2 45. Kxc2 Qa4+ 46. Kd3 Qd1+ 47. Kc3 Qf1 48. Qe7+ Qf7 49. Qc5 Qd7 50. Qd4+ Kf7 51. Qf4+ Ke7 52. Qxh6 Qxd5 53. Qxg6 Qe5+ 54. Kb3 Qb5+ 55. Kc2 Qe2+ 56. Kc3 Qe5+ 57. Kb3 Qb5+ 58. Ka2 Qd5+ 59. b3 Qd2+ 60. Ka1 Qe1+ 61. Kb2 Qe2+ 62. Kc3 Qe1+ 1/2-1/2