Balashov, Yuri S VS Ivkov, Borislav 1980.09.14

[Event "Chigorin Memorial-14"]
[Site "Sochi"]
[Date "1980.09.14"]
[Round "9"]
[White "Balashov, Yuri S"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[WhiteElo "2600"]
[BlackElo "2530"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nd7 10. d4 Nb6 11. Nbd2 exd4 12. cxd4 Nb4 13. Nf1 c5 14. a3 Nc6 15. Be3 Na5 16. Bc2 Nbc4 17. Bc1 cxd4 18. Nxd4 Bf6 19. Rb1 d5 20. exd5 Bb7 21. Nf5 Qxd5 22. Qxd5 Bxd5 23. b3 Nb6 24. N1g3 Rac8 25. Re2 Be6 26. Bb2 Bxf5 27. Nxf5 Rc6 28. Rd1 g6 29. Nh6+ Kg7 30. Bc1 Rd8 31. Rxd8 Bxd8 32. Ng4 h5 33. Bb2+ Kf8 34. Ne5 Rd6 35. Bc3 Nd5 36. Bd2 Kg7 37. Bh6+ Kg8 38. Nf3 Be7 39. g3 Nc6 40. b4 a5 41. bxa5 Nxa5 42. Bd3 Rd8 43. Bxb5 Bxa3 44. Bd2 Bb4 45. Bxb4 Nxb4 46. Ne5 Rb8 47. Ba4 Nd5 48. Rc2 Nb6 49. Rb2 Nd7 50. Rxb8+ Nxb8 51. Be8 Kg7 52. h4 Nb7 53. Bxf7 Nd7 54. Nxd7 Kxf7 55. Kg2 Nd6 56. Kf3 Ke6 57. Nf8+ Kf5 58. Nh7 Nf7 59. Ke3 Nd6 60. Ng5 Kg4 61. Ne4 Nf5+ 62. Ke2 Nd4+ 63. Kf1 Nf3 64. Nf6+ Kf5 65. Nh7 Kg4 66. Kg2 Ne1+ 67. Kg1 Nf3+ 68. Kf1 Nd4 69. Kg2 Kf5 70. Ng5 Kg4 71. f3+ Kf5 72. Kf2 Ke5 73. Ne4 Nf5 74. Ng5 Kf6 75. Nh3 Ke5 76. Kg2 Ne3+ 77. Kg1 Nf5 78. Kf2 Ke6 1/2-1/2