Chess puzzle (Equality)
Moves: 1. e4 c5 2. f4 d6 3. d3 e5 4. f5 d5 5. Nc3 Nf6 6. Bg5 Be7 7. Bxf6 Bxf6 8. Nf3
d4 9. Nd5 O-O 10. Be2 Nd7 11. Qd2 Nb6 12. b3 Nxd5 13. exd5 Qxd5 14. O-O-O Bxf5
15. Rhf1 Bg6 16. Kb1 a5 17. Ng5 a4 18. Ne4 axb3 19. cxb3 Bxe4 20. dxe4 Qxe4+
21. Bd3 Qc6 22. Qe2 b5 23. Qh5 g6 24. Qg4 Bg7 25. h4 c4 26. Bc2 cxb3 27. Bxb3
Qc3 28. h5 Ra3 29. Rf3 Rxb3+ 30. axb3 Qb4 31. hxg6 fxg6 32. Qe6+ Kh8 33. Rxf8+
Qxf8 34. g4 Qa8 35. Rc1 Qe4+ 36. Kb2 Bf8 37. Qf7 Qf4 38. Qe6 Ba3+ 39. Kxa3
Qxc1+ 40. Kb4 Qc3+ 41. Kxb5 Qd3+ 42. Kc5 e4 43. Qf7 h5 44. Qf6+ Kh7 45. Qf7+
Kh6 46. Qf4+ Kg7 47. Qe5+ Kh6 48. g5+ Kh7 49. Qe7+ Kg8 50. Qd8+ Kf7 51. Qf6+
Ke8 52. Qxg6+ Kd7 53. Qd6+ Kc8 54. Qc6+ Kd8 55. Qf6+ Ke8 56. g6 Qc3+ 57. Kd6
Qb4+ 58. Ke5 Qc5+ 59. Kxe4 Qc2+ 60. Ke5 Qe2+ 61. Kf5 Qg4+ 62. Ke5 Qe2+ 63. Kd5
Qb5+ 64. Kxd4 Qb4+ 65. Ke3 *
Position (FEN): 4k3/8/5QP1/7p/1q6/1P2K3/8/8 b - - 2 65
Black to move.
Themes:  Endgame, Queen Endgame  
Puzzle rating: 1586
Best move: Qxb3+