Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. g3 Bf5 5. Nc3 Nbd7 6. Nh4 e6 7. Nxf5 exf5 8.
cxd5 cxd5 9. Qb3 Nb6 10. Bf4 Be7 11. e3 O-O 12. h4 Rc8 13. h5 h6 14. Bg2 Ne4
15. Nxe4 fxe4 16. f3 exf3 17. Bxf3 Re8 18. O-O Bg5 19. Rac1 Nc4 20. Rfe1 Nd2
21. Rxc8 Nxf3+ 22. Kf2 Qxc8 23. Kxf3 Bxf4 24. Kxf4 Re4+ 25. Kf3 Qg4+ 26. Kg2
Qxh5 27. Qxb7 Qg5 28. Qxa7 Rxe3 29. Rxe3 Qxe3 30. Qa8+ Kh7 31. Qxd5 Qd2+ 32.
Kh3 Qxb2 33. Qxf7 Qxd4 34. Qf5+ Kg8 35. Qe6+ Kf8 36. Qf5+ Ke7 37. Qc2 Kd6 38.
a4 g5 39. Qg6+ Ke5 40. Qxh6 Kf5 41. Qh7+ Ke6 42. Qg8+ Kf5 43. Qf7+ Ke4 44. Qg6+
Kf3 45. Qxg5 Qh8+ 46. Qh4 Qc8+ 47. Kh2 Qc2+ 48. Kh3 *
Position (FEN): 8/8/8/8/P6Q/5kPK/2q5/8 b - - 6 48
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 799
Best move: Qg2#