Chess puzzle (Checkmate)
Moves: 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. O-O e5 5. d3 Nf6 6. c4 d4 7. e3 Be7 8. exd4
exd4 9. Re1 O-O 10. Bf4 Nh5 11. Be5 Nxe5 12. Nxe5 Nf6 13. Nd2 Bf5 14. Ndf3 Bd6
15. Qd2 Re8 16. Qg5 Qc8 17. Rad1 Bh3 18. Re2 Bxg2 19. Kxg2 Qc7 20. Rde1 h6 21.
Qf5 Re7 22. h4 Rae8 23. Kf1 b6 24. g4 Qb7 25. g5 Bxe5 26. gxf6 Bxf6 27. Rxe7
Rxe7 28. Rxe7 Qxe7 29. Qc8+ Kh7 30. h5 Bg5 31. Qf5+ Kg8 32. Ne5 Bd2 33. Qc8+
Kh7 34. Qf5+ Kg8 35. Qc8+ Qf8 36. Qd7 Bf4 37. Ng4 Bb8 38. Qf5 Qe7 39. Qc8+ Qf8
40. Qf5 Qd8 41. f4 Qc7 42. Ke2 Qxf4 43. Qc8+ Kh7 44. Nf2 Be5 45. Qd7 a5 46. Ne4
Qh2+ 47. Kd1 Bf4 48. Qxf7 Qh3 49. Nf6+ Kh8 *
Position (FEN): 7k/5Qp1/1p3N1p/p1p4P/2Pp1b2/3P3q/PP6/3K4 w - - 3 50
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 562
Best move: Qf8#