[Event "URS Spartak CC"]
[Site "Soviet Union"]
[Date "1963.??.??"]
[Round "?"]
[White "Zaitsev, Alexander N"]
[Black "Estrin, Yakov Borisovich"]
[Result "1-0"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O c5 8. e4 Nf6 9. e5 Nd5 10. dxc5 Na6 11. a3 Nxc5 12. b4 Ne6 13. Bb2 a5 14. Qb3 Nec7 15. Rd1 axb4 16. Ng5 e6 17. Ne4 Qe7 18. Nbd2 Bd7 19. a4 Bc6 20. Bd4 Na6 21. Bf1 Rfd8 22. Re1 Ndc7 23. Qb2 Rd7 24. Nc4 Rad8 25. Nf6+ Bxf6 26. exf6 Qf8 27. Bb6 Qh6 28. Ne5 Rd2 29. Qc1 b3 30. Rb1 Qh5 31. Nxc6 bxc6 32. Bxa6 b2 33. Qxc6 1-0