Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Nf6 5. Bxc4 e6 6. O-O c5 7. Nc3 b5 8. Be2
Bb7 9. dxc5 Bxc5 10. Qxd8+ Kxd8 11. Nd2 Nbd7 12. Nb3 Bb6 13. a4 b4 14. a5 Ba7
15. Na4 Bd5 16. Nd4 Ke7 17. Rd1 Ne4 18. f3 Nec5 19. Nxc5 Nxc5 20. e4 Bb3 21.
Nc6+ Kf6 22. e5+ Kg6 23. Ne7+ Kh5 24. f4+ Kh6 25. f5+ g5 26. fxg6+ Kg7 27. Rf1
Ne4+ 28. Kh1 hxg6 29. Bf4 Rh4 30. Nc6 Bf2 31. Bf3 Ng3+ 32. Bxg3 Bxg3 33. h3
Rah8 34. Rac1 Bd5 35. Bxd5 exd5 36. Ne7 Bxe5 37. Nxd5 Rd4 38. Nc7 Rc8 39. Nxa6
Rxc1 40. Rxc1 b3 41. Nc5 Rd2 42. Nxb3 Rxb2 43. Nc5 Bf4 44. Ra1 Be5 45. a6 Rb8
46. Re1 Bd4 47. Ne4 Ra8 48. g4 Rxa6 49. Kg2 Ra2+ 50. Kf3 Ra3+ 51. Kg2 f5 52.
gxf5 gxf5 53. Ng3 Kg6 54. Re6+ Kg5 55. Re8 Ra2+ 56. Kf3 *
Position (FEN): 4R3/8/8/5pk1/3b4/5KNP/r7/8 b - - 7 56
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1188
Best move: Rf2#