Chess puzzle (Checkmate)
Moves: 1. Nf3 Nf6 2. c4 d6 3. g3 g6 4. Bg2 Bg7 5. O-O Nbd7 6. Nc3 c5 7. b3 O-O 8. Bb2
e5 9. e3 a6 10. d4 cxd4 11. exd4 e4 12. Ng5 e3 13. f4 h6 14. Nge4 Nxe4 15. Nxe4
Nf6 16. Nxf6+ Qxf6 17. Qf3 Re8 18. Rfe1 Qe7 19. Rad1 h5 20. Rd3 e2 21. h3 Bf5
22. Rd2 Qd7 23. Kh2 b5 24. Rdxe2 Rad8 25. Rxe8+ Rxe8 26. Rxe8+ Qxe8 27. Qa8
Qxa8 28. Bxa8 bxc4 29. bxc4 Bd3 30. Bd5 Bf8 31. Kg2 Be7 32. Kf3 Kf8 33. Ke3 Bb1
34. a3 Ba2 35. Kd3 a5 36. Bc6 Bb3 37. a4 Bd1 38. Bc3 Bd8 39. c5 Ke7 40. Kc4
Be2+ 41. Kb3 Bf1 42. h4 Bc7 43. Bb5 Bg2 44. Bc4 dxc5 45. dxc5 Bf3 46. Bd3 Bd1+
47. Ka3 Bf3 48. Bc4 Bd1 49. Bb5 Bf3 50. Kb2 Bd5 51. Kc2 Be4+ 52. Kd2 Bd5 53.
Ke3 Bb3 54. Kd4 Ba2 55. Ke4 Bb1+ 56. Kd5 Kd8 57. Kc6 *
Position (FEN): 3k4/2b2p2/2K3p1/pBP4p/P4P1P/2B3P1/8/1b6 b - - 24 57
Black to move.
Themes:  Bishop Endgame, Endgame Mate in 1 
Puzzle rating: 1110
Best move: Be4#