Chess puzzle (Checkmate)
Moves: 1. c4 Nf6 2. g3 g6 3. Bg2 c6 4. Nf3 Bg7 5. O-O O-O 6. Nc3 d5 7. cxd5 cxd5 8. d4
Nc6 9. a3 a6 10. Bg5 Bf5 11. b4 Rc8 12. Rc1 Qd7 13. Qd2 Ne4 14. Nxe4 dxe4 15.
Nh4 Nxd4 16. Nxf5 Qxf5 17. Qe3 Rfe8 18. Rxc8 Rxc8 19. Bxe4 Qh3 20. Bg2 Qh5 21.
Bf3 Nxf3+ 22. exf3 h6 23. Bf4 Rc3 24. Qxe7 Qxf3 25. Qe8+ Kh7 26. Qxf7 Rxa3 27.
Qe7 Qd5 28. h4 h5 29. Bg5 Rf3 30. Be3 Rf7 31. Qe8 Rf8 32. Qa4 Rc8 33. Rd1 Qf3
34. Rd7 Rc3 35. Rxg7+ Kxg7 36. Qd7+ Kg8 37. Qd8+ Kf7 38. Qd7+ Kg8 39. Qe8+ Kh7
40. Qe7+ Kg8 41. Qe6+ Qf7 42. Qd6 Rc6 43. Qd4 Rc4 44. Qd8+ Kh7 45. Bd4 Rxd4 46.
Qxd4 Kg8 47. Qd8+ Kg7 48. Qd4+ Kf8 49. Qd6+ Ke8 50. Kg2 Qg7 51. Qb8+ Kf7 52.
Qxb7+ Kg8 53. Qxa6 Kh7 54. Qc6 g5 55. hxg5 Qxg5 56. Qe4+ Kg7 57. Qd4+ Kf7 58.
Qc5 Qg4 59. b5 h4 60. Qc7+ Ke8 61. Qe5+ Kd8 62. b6 h3+ 63. Kh2 Qf3 64. Qf4 *
Position (FEN): 3k4/8/1P6/8/5Q2/5qPp/5P1K/8 b - - 3 64
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 853
Best move: Qg2#