Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Bf4 g6 3. Nf3 Bg7 4. e3 d6 5. Bc4 O-O 6. O-O e6 7. c3 c5 8. Nbd2
Nc6 9. Bb3 a5 10. Nc4 d5 11. Ncd2 c4 12. Ba4 Qc7 13. b3 Qd7 14. bxc4 dxc4 15.
Nxc4 Qd5 16. Qd3 b5 17. Nb6 Qd8 18. Nxa8 bxa4 19. Nc7 Nh5 20. Nxe6 Bxe6 21. Bg5
f6 22. Bh4 g5 23. Bg3 Nxg3 24. fxg3 Qc7 25. d5 Bf7 26. dxc6 Qxc6 27. Nd4 Qc7
28. Nf5 Bc4 29. Qe4 Bxf1 30. Rxf1 Qxc3 31. Qe6+ Kh8 32. Nxg7 Kxg7 33. Qe7+ Rf7
34. Qe4 Qc5 35. h4 Re7 36. Qxa4 Qxe3+ 37. Kh2 gxh4 38. Qg4+ Kf7 39. Qh5+ Ke6
40. Qg4+ Kd6 41. Rxf6+ Re6 42. Rxe6+ Qxe6 43. Qd1+ Ke7 44. Qa4 hxg3+ 45. Kxg3
Qg6+ 46. Kf2 Qf5+ 47. Kg1 h5 48. Qa3+ Kd8 49. Qd6+ Qd7 50. Qb6+ Qc7 51. Qf6+
Kc8 52. Qf5+ Qd7 53. Qxh5 Qd4+ 54. Kh1 Qa1+ 55. Kh2 Qxa2 56. Qe8+ Kc7 57. Qe7+
Kc6 58. Qe8+ Kc5 59. Qe7+ Kb5 60. Qd7+ Kb4 61. Qd6+ Kb3 62. Qd5+ Kb2 63. Qd4+
Kc1 64. Qc3+ Kd1 65. Qd3+ Qd2 66. Qb3+ Ke1 67. Qg3+ Qf2 68. Qc3+ Kf1 69. Qxa5 *
Position (FEN): 8/8/8/Q7/8/8/5qPK/5k2 b - - 0 69
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 738
Best move: Qh4#