Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. Bxc6 dxc6 5. O-O Qf6 6. Nc3 Be6 7. d3 O-O-O
8. Bg5 Qg6 9. Bxd8 Kxd8 10. Re1 f6 11. d4 exd4 12. Nxd4 Bh3 13. g3 Kc8 14. Nf5
Ne7 15. Nxe7+ Bxe7 16. e5 Rd8 17. Qf3 fxe5 18. Rxe5 Bd6 19. Re4 h5 20. Rae1 Bg4
21. Qe3 Qf7 22. a4 b6 23. b4 c5 24. b5 Bf3 25. Re8 h4 26. Rxd8+ Kxd8 27. Ne4
Bxe4 28. Qxe4 hxg3 29. hxg3 c4 30. Qa8+ Kd7 31. Qc6+ Kd8 32. Qa8+ Kd7 33. Qxa7
Bc5 34. Rf1 Qf3 35. Re1 Qxg3+ 36. Kh1 Qxf2 37. Rd1+ Ke6 38. Qb7 Bd6 39. Qd5+
Kd7 40. Qc6+ Kc8 41. Rxd6 Qh4+ 42. Kg2 Qg4+ 43. Kh1 Qh3+ 44. Kg1 Qg3+ 45. Kf1
Qxd6 46. Qe8+ Kb7 47. Qe4+ Ka7 48. Qxc4 Qd1+ 49. Kg2 Qd2+ 50. Kg3 g5 51. Qxc7+
Ka8 52. Qc8+ Ka7 53. Qa6+ Kb8 54. Qxb6+ Kc8 55. Qc6+ Kb8 56. a5 Qxa5 57. Qc5
Qd2 58. b6 Qf4+ 59. Kg2 Kb7 60. Qe7+ Kxb6 61. Qd8+ Kb5 62. Qd5+ Kb4 63. Qb3+
Kc5 64. Qc3+ Kd6 65. Qd3+ Ke6 66. Qb3+ Kf5 67. Qd3+ Kg4 *
Position (FEN): 8/8/8/6p1/5qk1/3Q4/2P3K1/8 w - - 14 68
White to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 1273
Best move: Qh3#