Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 e5 3. e3 Nc6 4. cxd5 Qxd5 5. Nc3 Bb4 6. Bd2 Bxc3 7. bxc3 exd4 8.
cxd4 Nf6 9. Nf3 Ne4 10. Be2 Bg4 11. O-O O-O-O 12. Be1 f5 13. h3 h5 14. Qb3 Qd6
15. Rb1 b6 16. a4 g5 17. a5 Bxh3 18. gxh3 g4 19. Ba6+ Kb8 20. axb6 cxb6 21. Ne5
g3 22. f3 g2 23. Rf2 Nxf2 24. Bxf2 Nxe5 25. Bg3 Rhe8 26. dxe5 Qe6 27. Qxe6 Rxe6
28. Kxg2 Rg8 29. Kf2 Rxg3 30. Kxg3 Rxe5 31. Kf4 Ra5 32. e4 fxe4 33. Be2 exf3
34. Bxf3 Ra3 35. h4 Kc7 36. Bxh5 a5 37. Bf3 Ra2 38. h5 Rh2 39. Kg3 Rd2 40. Rh1
Rd8 41. h6 Rh8 42. h7 a4 43. Be4 b5 44. Kf4 b4 45. Ke5 b3 46. Rc1+ Kb6 47. Kd4
Kb5 48. Kc3 Re8 49. Rh1 Rh8 50. Kb2 Kb4 51. Bd5 a3+ 52. Kb1 b2 53. Ka2 Kc3 54.
Be4 Kd4 55. Bb1 Kc3 56. Kxa3 *
Position (FEN): 7r/7P/8/8/8/K1k5/1p6/1B5R b - - 0 56
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 627
Best move: Ra8#