Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 h6 4. d3 Nf6 5. Be3 Be7 6. O-O d6 7. Nbd2 O-O 8. h3
Nh7 9. c3 Bf6 10. Nh2 Ne7 11. f4 exf4 12. Bxf4 Bg5 13. Qe2 Bxf4 14. Rxf4 Ng6
15. Rf2 a6 16. Raf1 Nf6 17. Ndf3 b5 18. Bb3 a5 19. a4 c6 20. e5 dxe5 21. Nxe5
Nxe5 22. Qxe5 Re8 23. Qg3 Kh8 24. Bxf7 Rf8 25. Ba2 bxa4 26. Bc4 Ba6 27. Bxa6
Rxa6 28. Rf3 c5 29. Re1 Rd6 30. Rd1 c4 31. Re3 cxd3 32. Rexd3 Rxd3 33. Rxd3
Qb6+ 34. Kh1 Qxb2 35. Nf3 a3 36. Nh4 Qc1+ 37. Kh2 Kg8 38. Ng6 Re8 39. Qc7 a2
40. Qc4+ Kh7 41. Qxa2 Kxg6 42. Rg3+ Kh7 43. Qxa5 Ne4 44. Qf5+ Kg8 45. Qd5+ Kh8
46. Rf3 Qg5 47. Qd7 Qe5+ 48. Kg1 Nf6 49. Rxf6 gxf6 50. c4 Qe1+ 51. Kh2 Re2 52.
Qd8+ Kg7 53. Qd7+ Re7 54. Qg4+ Kf7 55. Qh5+ Ke6 *
Position (FEN): 8/4r3/4kp1p/7Q/2P5/7P/6PK/4q3 w - - 11 56
White to move.
Themes:  Endgame Dovetail Mate, Mate in 1 
Puzzle rating: 1044
Best move: Qd5#