Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. e3 Nf6 3. Bd3 e6 4. f4 c5 5. c3 cxd4 6. exd4 Nc6 7. Nf3 a6 8. O-O
Bd6 9. Ne5 Qc7 10. Be3 Be7 11. Nd2 Nxe5 12. fxe5 Nd7 13. Qf3 f6 14. exf6 Nxf6
15. Bf4 Qd7 16. Be5 O-O 17. Bxf6 Bxf6 18. Qh5 g6 19. Qe2 Qe7 20. Nf3 Bd7 21.
Ne5 Bxe5 22. Qxe5 Qg7 23. Qg3 Rae8 24. Rae1 Bc6 25. Rxf8+ Qxf8 26. Qe5 Qg7 27.
Qd6 Qe7 28. Qe5 Qf7 29. Rf1 Qg7 30. Qg3 Rf8 31. Re1 Qf6 32. Rf1 Qe7 33. Re1 Rf6
34. Qe5 Bb5 35. Bxb5 axb5 36. Qb8+ Kg7 37. Qe5 b4 38. Rf1 bxc3 39. bxc3 Kf7 40.
Rxf6+ Qxf6 41. Qc7+ Qe7 42. Qf4+ Kg7 43. Qe5+ Kf7 44. Qf4+ Kg7 45. Qe5+ Qf6 46.
Qc7+ Qf7 47. Qe5+ Kf8 48. Qb8+ Kg7 49. Qe5+ Kh6 50. Qe3+ g5 51. Qh3+ Kg6 52.
Qd3+ Qf5 53. Qb5 Qe4 54. Qb2 *
Position (FEN): 8/1p5p/4p1k1/3p2p1/3Pq3/2P5/PQ4PP/6K1 b - - 7 54
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 441
Best move: Qe1#