Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. Nf3 e6 5. Bg5 Be7 6. e3 O-O 7. Bd3 Nc6 8. h4
Nb4 9. Bb1 d5 10. a3 Nc6 11. cxd5 Nxd5 12. Nxd5 exd5 13. Qd3 g6 14. Bh6 Re8 15.
h5 Bf6 16. hxg6 fxg6 17. Ba2 Na5 18. e4 Qe7 19. O-O Qxe4 20. Qc3 Rac8 21. Rfe1
Qf5 22. Rxe8+ Rxe8 23. Qxc7 Qc8 24. Qf4 Qf5 25. Qc7 Qc8 26. Qd6 Qc6 27. Bxd5+
Qxd5 28. Qxf6 Qf7 29. Qxf7+ Kxf7 30. Ne5+ Kf6 31. Rc1 g5 32. f4 gxf4 33. Bxf4
Rg8 34. Rc2 Nb3 35. Rc7 Bxg2 36. Kf2 Nxd4 37. Rxh7 Be4 38. Rh6+ Kf5 39. Bg3
Rxg3 40. Kxg3 Kxe5 41. Rh8 a6 42. Rh5+ Kd6 43. Kf4 Bd3 44. Ke3 Ne6 45. Rh6 Bb5
46. Ke4 Kd7 47. Ke5 Bc4 48. Rh7+ Kc6 49. Rh6 Kd7 50. Rh7+ Ke8 51. Rb7 b5 52.
Rb6 Nc7 53. Kd6 Kd8 *
Position (FEN): 3k4/2n5/pR1K4/1p6/2b5/P7/1P6/8 w - - 4 54
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 447
Best move: Rb8#