Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Bc4 Nf6 3. d3 h6 4. c3 Be7 5. f4 exf4 6. Nf3 d6 7. Bxf4 Ng4 8. O-O
Bg5 9. Nxg5 hxg5 10. Bg3 f6 11. Qb3 Qe7 12. Nd2 Ne3 13. Rf3 Nxc4 14. Nxc4 Nc6
15. d4 b6 16. Re1 Bb7 17. Qa4 Qd7 18. b4 O-O-O 19. b5 Nb8 20. d5 a6 21. Nxb6+
cxb6 22. c4 a5 23. Bf2 Kc7 24. Qb3 Qf7 25. Qe3 Nd7 26. Qxg5 Rh5 27. Qe3 Rdh8
28. h3 g5 29. g4 R5h6 30. Kg2 Qe7 31. Rh1 Re8 32. Re1 Kb8 33. Bg3 Nc5 34. Qa3
Ka7 35. Rfe3 Qh7 36. Bxd6 Rxh3 37. Rxh3 Qd7 38. Bxc5 bxc5 39. Qxc5+ Ka8 40. Rg3
Rh8 41. Rh1 Re8 42. Kf3 Rc8 43. Qd4 Qd6 44. Kg2 Qf4 45. Rf1 Qd6 46. Rxf6 Qb4
47. Rb3 Qe1 48. Qf2 Qxe4+ 49. Qf3 Qxc4 50. Rc6 Bxc6 51. bxc6 Qc2+ 52. Qf2 Qe4+
53. Qf3 Qc2+ 54. Kg3 Rh8 55. Qg2 Qc4 56. c7 *
Position (FEN): k6r/2P5/8/p2P2p1/2q3P1/1R4K1/P5Q1/8 b - - 0 56
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1420
Best move: Qf4#