Chess puzzle (Checkmate)
Moves: 1. d4 g6 2. e3 Bg7 3. Nf3 d6 4. Be2 e6 5. O-O Ne7 6. c4 O-O 7. Nc3 c6 8. b3 Nd7
9. Bb2 d5 10. Qc2 f6 11. Rac1 e5 12. e4 exd4 13. Nxd4 dxe4 14. Nxe4 Ne5 15.
Rfd1 Qc7 16. Nc5 Qb6 17. Nce6 Bxe6 18. Nxe6 Rf7 19. Nxg7 Kxg7 20. Rd6 Nf5 21.
Rd2 Rd8 22. Rxd8 Qxd8 23. Rd1 Qb6 24. g4 Nh6 25. g5 Nhg4 26. gxf6+ Rxf6 27.
Bxg4 Nxg4 28. Bxf6+ Nxf6 29. Qe2 Qc7 30. Rd4 c5 31. Rd1 h5 32. Rd3 Ng4 33. f3
Nf6 34. Re3 Qf4 35. Re7+ Kh6 36. Qe3 Qg5+ 37. Qxg5+ Kxg5 38. Rxb7 h4 39. Rxa7
Nh5 40. Rf7 h3 41. a4 Nf4 42. Rxf4 Kxf4 43. a5 Kxf3 44. a6 Ke3 45. a7 Kd3 46.
a8=Q Kc3 47. Qb7 g5 48. Qf3+ Kb4 49. Qxh3 g4 50. Qh5 Kxb3 51. Qxc5 Kc3 52. Qd5
Kb4 53. c5 Kb5 54. c6+ Kb6 55. c7 Kxc7 56. h4 gxh3 57. Kf2 h2 58. Ke3 Kb6 59.
Kd4 Ka6 60. Kc4 Ka7 61. Qc6 Kb8 62. Kb5 Ka7 63. Kc5 Kb8 64. Kd6 Ka7 65. Kc7
h1=Q 66. Qb6+ Ka8 *
Position (FEN): k7/2K5/1Q6/8/8/8/8/7q w - - 2 67
White to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 1168
Best move: Qb8#