[Event "Chigorin Memorial-09"]
[Site "Sochi"]
[Date "1973.??.??"]
[Round "8"]
[White "Spiridonov, Nikola"]
[Black "Korensky, Valeri S"]
[Result "1/2-1/2"]

1. Nf3 Nf6 2. c4 e6 3. b3 Be7 4. Bb2 O-O 5. g3 d5 6. Bg2 Nbd7 7. O-O c6 8. d3 b5 9. Nbd2 Qb6 10. Qc2 Bb7 11. Rac1 Rfc8 12. Qb1 a5 13. cxd5 cxd5 14. Rxc8+ Rxc8 15. Rc1 Rxc1+ 16. Qxc1 Qc5 17. Qxc5 Bxc5 18. a3 Ne8 19. Nd4 Nc7 20. Kf1 Kf8 21. f4 Ke7 22. N2f3 f6 23. e3 Nb8 24. Ke2 Nc6 25. Nxc6+ Bxc6 26. Nd4 Bd7 27. e4 Kd6 28. e5+ fxe5 29. fxe5+ Ke7 30. Nc2 Na6 31. Bd4 b4 32. axb4 Bxd4 33. Nxd4 Nxb4 34. Bh3 Nc6 35. Nxc6+ Bxc6 36. Ke3 a4 37. bxa4 Bxa4 38. Bg4 Be8 39. h4 Bg6 40. Be2 Be8 41. g4 h6 42. g5 hxg5 43. hxg5 Bg6 44. Bg4 Be8 45. Kd4 Bf7 46. Kc5 Bg6 47. d4 1/2-1/2