Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Qe2+ Qe7 7. d3 Be6
8. Be3 Qb4+ 9. Bd2 Qxb2 10. Qd1 Qa3 11. Be2 Bc5 12. O-O Bb6 13. c4 Qd6 14. a3
O-O 15. Qc2 Bc7 16. Bb4 c5 17. Bc3 Bg4 18. g3 h5 19. d4 h4 20. dxc5 Qxc5 21.
Bb4 Qb6 22. c5 Qc6 23. Nxh4 Bh3 24. Bf3 Qb5 25. Rfe1 Nc6 26. Be2 Nd4 27. Qd2
Qd7 28. Nf3 Nxf3+ 29. Bxf3 Qxd2 30. Bxd2 Rad8 31. Bb4 Rfe8 32. Bxb7 Rxe1+ 33.
Rxe1 Be5 34. f4 Bd4+ 35. Kh1 Bf2 36. Rc1 Be3 37. Re1 Bf2 38. Rb1 Bf5 39. Rb2
Rd1+ 40. Kg2 Bd4 41. Rd2 Rg1+ 42. Kf3 Rf1+ 43. Kg2 Rg1+ 44. Kf3 Rf1+ 45. Ke2
Rf2+ 46. Kd1 Bg4+ 47. Kc2 Bf5+ 48. Kb3 Be6+ 49. Ka4 Bd7+ 50. Ka5 Rxd2 51. Bxd2
Bxc5 52. a4 Bb6+ 53. Ka6 Be6 54. a5 *
Position (FEN): 6k1/pB3pp1/Kb2bp2/P7/5P2/6P1/3B3P/8 b - - 0 54
Black to move.
Themes:  Bishop Endgame, Endgame Mate in 1 
Puzzle rating: 776
Best move: Bc4#