[Event "URS-ch31 Semifinal"]
[Site "Moscow"]
[Date "1963.??.??"]
[Round "?"]
[White "Polugaevsky, Lev"]
[Black "Zaitsev, Alexander N"]
[Result "1-0"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c5 5. cxd5 cxd4 6. Qxd4 exd5 7. e4 Nc6 8. Bb5 Bd7 9.
Bxc6 Bxc6 10. exd5 Bxd5 11. O-O Bc6 12. Re1+ Be7 13. Qe5 Kf8 14. Bf4 Nd7 15. Qe2 g5 16.
Bg3 Bf6 17. Rad1 Kg7 18. Ne5 Re8 19. Qh5 Qe7 20. f4 Bxe5 21. fxe5 Nf8 22. e6 Ng6 23. exf7
Qxf7 24. Qxg5 Rxe1+ 25. Rxe1 Re8 26. Rxe8 Qxe8 27. h4 Qe7 28. Qg4 Qd7 29. Qe2 Qe7 30. Qf2
Qf6 31. Qe3 h5 32. Qxa7 Nxh4 33. Qc5 Kg6 34. Nd5 Bxd5 35. Qxd5 Nf5 36. Be5 Qf7 37. Qxf7+
Kxf7 38. Kf2 Ke6 39. Bg3 Nd4 40. Ke3 Kd5 41. Bf2 b5 42. Kf4 Ne2+ 43. Kg5 Ke4 44. Be1 Nf4
45. g3 Nd3 46. Bc3 b4 47. Bf6 Kf3 48. Kh4 Nc1 49. Be5 Nd3 50. Bb8 Nxb2 51. Kxh5 Nd3 52. g4
Ke4 53. g5 Nc5 54. g6 Ne6 55. Kg4 Kd5 56. Kf5 Ng7+ 57. Kf6 Nh5+ 58. Kf7 Kc4 59. Bd6 Kd5
60. Bxb4 Ng3 61. Bd2 Nf5 62. Kf6 Nd6 63. Bf4 1-0