Chess puzzle (Checkmate)
Moves: 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d6 6. Nbd2 c6 7. e4 Nbd7 8. Qe2
Qc7 9. e5 Re8 10. exf6 Nxf6 11. Re1 e5 12. dxe5 dxe5 13. Ne4 Nd7 14. Rd1 h6 15.
Nd6 Re6 16. Nxc8 Rxc8 17. Bh3 f5 18. Nh4 Rf8 19. Qc4 Rf6 20. Nxg6 Rxg6 21. Bxf5
Kf7 22. Be3 Rf6 23. Bxe6+ Rxe6 24. Rd2 Nb6 25. Qg4 Nd5 26. Rad1 b5 27. c4 bxc4
28. Qxc4 Qd7 29. Bc5 e4 30. Re2 Qe8 31. Rxd5 cxd5 32. Qxd5 Kg6 33. Bxa7 Kh7 34.
Bd4 Bf8 35. Qf5+ Kg8 36. f3 e3 37. Rxe3 Rxe3 38. Bxe3 Qxe3+ 39. Kg2 Qd2+ 40.
Kh3 Qxb2 41. Qe6+ Kh8 42. a4 Bg7 43. a5 Bd4 44. a6 Qb6 45. Qe8+ Kg7 46. Qd7+
Kg6 47. g4 h5 48. Qf5+ Kg7 49. Qg5+ Kf8 50. Qxh5 Qxa6 51. Qf5+ Bf6 52. g5 Qf1+
53. Kg4 Qg2+ 54. Kh5 Qxh2+ 55. Kg6 Kg8 56. Qxf6 *
Position (FEN): 6k1/8/5QK1/6P1/8/5P2/7q/8 b - - 0 56
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 1089
Best move: Qh7#