Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 c2 5. Qxc2 Qf6 6. Nf3 Bb4+ 7. Nc3 Bxc3+
8. bxc3 Nc6 9. Bg5 Qg6 10. h4 h6 11. h5 Qh7 12. Qb3 Qxe4+ 13. Be3 Qe7 14. O-O
Nf6 15. Rfe1 O-O 16. Bd4 Qd6 17. Rad1 Qf4 18. Be3 Qg4 19. Nd4 Na5 20. Qa4 Nc6
21. Be2 Qh4 22. Qb5 d5 23. Nxc6 bxc6 24. Qxc6 Bg4 25. Bxg4 Nxg4 26. Qxd5 Rad8
27. Qf3 Rxd1 28. Rxd1 Qh2+ 29. Kf1 Ne5 30. Qf4 Qh1+ 31. Ke2 Qxh5+ 32. f3 Ng6
33. Qxc7 Qb5+ 34. Kf2 Re8 35. Rd8 Qb2+ 36. Kg3 Rxd8 37. Qxd8+ Kh7 38. Bxa7 Qxc3
39. Bd4 Qc6 40. a4 Qxa4 41. Qd5 Qe8 42. Kf2 Qe7 43. Bc5 Qh4+ 44. Kf1 Qh1+ 45.
Bg1 Nf4 46. Qe4+ Ng6 47. Qf5 Qh4 48. Qxf7 Qg3 49. Qf5 Qd6 50. Bf2 Qd1+ 51. Be1
Qd4 52. Qb1 Qc4+ 53. Kf2 Qd4+ 54. Kg3 *
Position (FEN): 8/6pk/6np/8/3q4/5PK1/6P1/1Q2B3 b - - 12 54
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1501
Best move: Qh4#