[Event "Chigorin Memorial-03"]
[Site "Sochi"]
[Date "1963.06.03"]
[Round "3"]
[White "Zaitsev, Alexander N"]
[Black "Bobotsov, Milko Georgiev"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 O-O 7. e4 Ne8 8. Bd3 b6 9. Be3 d6 10. Ne2 Nc6 11. f4 Ba6 12. Ng3 Na5 13. Qe2 Rc8 14. d5 exd5 15. cxd5 Bxd3 16. Qxd3 Nf6 17. c4 Re8 18. O-O Nxe4 19. Nxe4 Qe7 20. Nxd6 Qxd6 21. Bd2 Nb7 22. Bc3 f6 23. f5 Qd7 24. Rae1 Rxe1 25. Rxe1 Re8 26. Re6 Nd8 27. Qe4 Nxe6 28. fxe6 Qd6 29. Be1 Qc7 30. Bg3 Qc8 31. a4 Re7 32. h3 Re8 33. h4 Re7 34. h5 h6 35. Bd6 Re8 36. Qg6 Rxe6 37. dxe6 Qxe6 38. Qd3 Qe1+ 39. Qf1 Qb4 40. Kh2 Qxa4 41. Qd3 Qd7 42. Qd5+ Kh8 43. Bxc5 Qg4 44. Bf2 Qf4+ 45. Bg3 Qg4 46. Be1 Qe2 47. Bg3 Qg4 48. Qf7 Kh7 49. Qg6+ Qxg6 50. hxg6+ Kxg6 51. Bb8 a6 52. Kg3 Kf5 53. Kf3 h5 54. g3 Ke6 55. Ba7 b5 56. cxb5 1/2-1/2