Black to win a difficult ending.

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Analysis vs. ?

1 2 3 4 5 6 7 8 h g f e d c b a -1

(black to move) 1. e4 e6 2. d3 d5 3. Nd2 Nc6 4. Ngf3 Bc5 5. c3 dxe4 6. Nxe4 Be7 7. g3 e5 8. Bg2 Nf6 9. O-O Nxe4 10. dxe4 Bg4 11. Qa4 O-O 12. Be3 Qd7 13. Rfd1 Qe6 14. Rd5 a6 15. Rad1 h6 16. Qb3 b5 17. Bc5 Qf6 18. Bxe7 Nxe7 19. Rd5d3 Nc6 20. h3 Be6 21. Qc2 Rfd8 22. b3 Rxd3 23. Rxd3 Rd8 24. Ne1 Rxd3 25. Nxd3 Qe7 26. b4 a5 27. a3 axb4 28. axb4 Bc4 29. Nc5 Qd6 30. Bf1 Bxf1 31. Kxf1 Nd8 32. Ke2 Ne6 33. Nxe6 Qxe6 34. Qd3 Qc4 35. Qxc4 bxc4 36. Kd2 Kf8 37. Kc2 Ke7 38. Kb2 f5 39. exf5 Kf6 40. g4 Kg5 41. Kc2 Kh4 42. Kd2 Kxh3 43. f3 e4 44. g5 exf3 45. f6 f2 46. fxg7 f1=Q 47. g8=Q Qf4+ 48. Kc2 hxg5 49. Qh7+ Kg2 50. Qh6 Qf2+ 51. Kc1 g4 52. Qc6+ Qf3 53. Qxc7 Qxc3+ 54. Kb1 Qxb4+ 55. Kc2 Qb3+ 56. Kc1 Qc3+ 57. Kb1 Qe1+ 58. Kc2 Qf2+ 59. Kc1 g3 60. Qc6+ Kg1 61. Qc7 g2 62. Kb1 Qf1+ 63. Ka2 Qe2+ 64. Ka1 Qe4 65. Qg7 Kf1 66. Qf6+ Ke2 67. Qb2+ Kd1 68. Qg7 c3 69. Qa7 Qg4 70. Qg1+ Ke2 71. Qb1 g1=Q 72. Qxg1 Qa4+ 73. Kb1 Qb3+

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Options:
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	- use short algebraic notation;
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	- show legal moves;

 

Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight

Click here for 42. Kc2
Click here for 42. Kc2
Click here for 42. Kc2
Click here for 44. Ke3
Click here for 60. Kb1
Click here for 61. Qb7
Click here for 64. Ka3