Chess puzzle (Checkmate)
Moves: 1. e4 g6 2. Nf3 Bg7 3. d4 d6 4. h3 Nf6 5. Bd3 O-O 6. O-O Nbd7 7. Qe2 b6 8. Rd1
Bb7 9. e5 dxe5 10. dxe5 Bxf3 11. gxf3 Nh5 12. f4 Qc8 13. Be4 Rb8 14. Bf3 a5 15.
Bg4 e6 16. Bxh5 gxh5 17. Qxh5 Kh8 18. Nc3 Nc5 19. Be3 Qb7 20. Kh2 Ne4 21. Rg1
Nxc3 22. bxc3 c5 23. Rg4 f5 24. exf6 Rxf6 25. Rag1 Rg8 26. Qe5 Qf7 27. Qd6 Rg6
28. Qxb6 Rxg4 29. Rxg4 Bxc3 30. Rxg8+ Qxg8 31. Qxc5 Bf6 32. Qb5 Qd8 33. c4 h6
34. c5 Bd4 35. Qb6 Qf6 36. Qb8+ Kh7 37. Qc7+ Kg6 38. Bxd4 Qxd4 39. Kg2 Qd5+ 40.
Kg3 Qxa2 41. Qe5 Qb3+ 42. Qe3 Qd5 43. f3 a4 44. Qa3 Qb3 45. Qc1 a3 46. c6 a2
47. c7 Qb1 48. Qe3 Qc2 49. Qxe6+ Kg7 50. c8=Q Qxc8 51. Qxc8 a1=Q 52. Qd7+ Kg8
53. Qe8+ Kh7 54. Qe4+ Kg8 55. Qe5 Qg1+ 56. Kh4 Qf2+ 57. Kg4 Qg2+ 58. Kh4 Qf2+
59. Kh5 Qxf3+ 60. Kxh6 Qxh3+ 61. Kg6 Qg4+ 62. Qg5 Qe6+ 63. Kh5+ Kh7 64. f5 Qe2+
65. Qg4 Qh2+ 66. Kg5 *
Position (FEN): 8/7k/8/5PK1/6Q1/8/7q/8 b - - 4 66
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 799
Best move: Qh6#