Chess puzzle (Checkmate)
Moves: 1. g3 Nf6 2. Bg2 g6 3. d3 Bg7 4. Nf3 O-O 5. O-O d6 6. Nc3 e5 7. e4 Nc6 8. h3 h6
9. Nh2 Be6 10. f4 exf4 11. gxf4 Qd7 12. Rf3 Nd4 13. Re3 Nh5 14. Ng4 f5 15. exf5
Rxf5 16. Ne4 Nxf4 17. c3 Nxg2 18. Kxg2 Rg5 19. Rg3 Nf5 20. Bxg5 Nxg3 21. Ngf6+
Bxf6 22. Nxf6+ Kg7 23. Nxd7 Bxd7 24. Bxh6+ Kxh6 25. Kxg3 Rf8 26. Qd2+ Kg7 27.
Rf1 Rxf1 28. Kg2 Rf5 29. d4 Bc6+ 30. Kh2 Be4 31. Qe3 d5 32. Qg3 Rf7 33. Qe5+
Kh7 34. c4 c6 35. b4 Rf2+ 36. Kg3 Rf7 37. b5 cxb5 38. cxd5 Bf5 39. d6 Rd7 40.
Kf4 a6 41. Kg5 b4 42. Qc5 Be4 43. Qxb4 Bc6 44. Qc5 Rf7 45. Kg4 Bf3+ 46. Kg3 Bc6
47. Qe5 Rf3+ 48. Kg4 Rf7 49. d5 Bd7+ 50. Kg3 Bf5 51. Kh4 Rd7 52. Kg5 b5 53. Kf6
a5 54. Qe7+ Rxe7 55. dxe7 Bd7 56. Kf7 b4 57. e8=Q Bxe8+ 58. Kxe8 a4 59. d6 b3
60. axb3 axb3 61. d7 b2 62. d8=Q b1=Q 63. Qd7+ Kh6 64. Qd2+ Kh5 65. Qe2+ Kh4 *
Position (FEN): 4K3/8/6p1/8/7k/7P/4Q3/1q6 w - - 6 66
White to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 918
Best move: Qg4#