[Event "Rubinstein Memorial 9th"]
[Site "Polanica-Zdroj POL"]
[Date "1971.08.25"]
[EventDate "1971.08.00"]
[Round "9"]
[Result "1-0"]
[White "Nikola Spiridonov"]
[Black "Yakov Estrin"]
[ECO "A00"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "105"]

1. g3 Nf6 2. Bg2 d5 3. c4 e6 4. Nf3 Nbd7 5. O-O c6 6. b3 Be7
7. Nc3 b6 8. Bb2 Bb7 9. d3 c5 10. e3 O-O 11. Qe2 Rc8 12. Rfd1
Qc7 13. Rac1 Qb8 14. cxd5 Nxd5 15. Nxd5 Bxd5 16. e4 Bb7 17. d4
cxd4 18. Rxc8 Rxc8 19. Nxd4 Nc5 20. Qg4 Bf6 21. b4 h5 22. Qxh5
Nxe4 23. Qg4 Nc3 24. Bxb7 Qxb7 25. Nb5 Qe4 {25...Nxd1! 26.Bxf6
Qh1+!! -+} 26. Qxe4 Nxe4 27. Bxf6 Nxf6 28. Nxa7 Ra8 29. Nc6
Rxa2 30. Rd8+ Kh7 31. Rf8 Rc2 32. Ne5 Rb2 33. Nxf7 Rxb4
34. Ng5+ Kg6 35. Nxe6 Re4 36. Nf4+ Kh7 37. Rf7 b5 38. Rb7 b4
39. Rb5 Rd4 40. Kf1 Ne4 41. h4 b3 42. Kg2 Nd2 43. Ne6 Rc4
44. Ng5+ Kg6 45. Nf3 Nxf3 46. Kxf3 Rc3+ 47. Kg4 Rc2 48. f4 b2
49. Rb6+ Kh7 50. h5 Rg2 51. Kh4 Kg8 52. g4 Kh7 53. Rb8 1-0