Chess puzzle (Checkmate)
Moves: 1. Nf3 e6 2. d4 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. Re1 d5 7. Bg5 Qe8 8. Nbd2
Nc6 9. c3 a6 10. Bxf6 Bxf6 11. e4 dxe4 12. Nxe4 Bg7 13. Nc5 Qe7 14. Ne5 Nxe5
15. Nxb7 Bxb7 16. Bxb7 Ra7 17. Bg2 Nc4 18. b3 Nd6 19. d5 e5 20. Rc1 Qd7 21. Qd2
Raa8 22. c4 Rae8 23. Qa5 Nf5 24. Qxa6 Ra8 25. Qb7 Rxa2 26. c5 Nd4 27. c6 Qf5
28. Rf1 Ne2+ 29. Kh1 Nxc1 30. Qxc7 Nd3 31. Kg1 e4 32. d6 Bd4 33. Qd7 Nxf2 34.
Qxf5 gxf5 35. d7 Ng4+ 36. Kh1 Be5 37. Kg1 Ne3 38. Rf2 Ra1+ 39. Bf1 Nxf1 40.
Rxf1 Ra6 41. Rxf5 Rxc6 42. Rxe5 Rd6 43. Re7 Rd8 44. Re8+ Rxe8 45. dxe8=Q+ Kg7
46. Qe5+ Rf6 47. Qd6 Rxd6 48. Kg2 e3 49. Kf1 Rd2 50. Ke1 f5 51. b4 Kf6 52. b5
Ke5 53. b6 Kd4 54. b7 Rc2 55. b8=Q Rc1+ 56. Ke2 Rc2+ 57. Kf3 *
Position (FEN): 1Q6/7p/8/5p2/3k4/4pKP1/2r4P/8 b - - 4 57
Black to move.
Themes:  Endgame, Queen and Rook Endgame Mate in 1 
Puzzle rating: 657
Best move: Rf2#