Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. O-O Bc5 5. Re1 O-O 6. c3 d6 7. h3 a6 8. d4
Ba7 9. Bg5 h6 10. Bh4 b5 11. Bb3 Qe7 12. Bd5 Bb7 13. Bxc6 Bxc6 14. d5 Bb7 15.
a4 c6 16. axb5 axb5 17. b3 cxd5 18. exd5 e4 19. Na3 Bxd5 20. Nd4 Bxd4 21. cxd4
g5 22. Bg3 Qd7 23. b4 Nh5 24. Qxh5 Kh7 25. Qe2 Rab8 26. Nc2 Bc4 27. Qxe4+ f5
28. Qe7+ Rf7 29. Qxd6 Qxd6 30. Bxd6 Rd8 31. Bc5 f4 32. f3 h5 33. Re5 g4 34.
Rxh5+ Kg6 35. hxg4 Rh7 36. Ra6+ Kg7 37. Rg5+ Kh8 38. Rf5 Rg7 39. Rxf4 Rgg8 40.
Rf5 Ra8 41. Rh6+ Kg7 42. Rff6 Bd3 43. Ne3 Ra1+ 44. Kh2 Raa8 45. Kg3 Rh8 46.
Rxh8 Rxh8 47. Rd6 Re8 48. Kf2 Ra8 49. Rd7+ Kf6 50. Rd6+ Kg5 51. Rd5+ Kf4 52.
Rf5+ Bxf5 53. Nxf5 Ra2+ 54. Kg1 Rd2 55. Nd6 Kg3 56. d5 *
Position (FEN): 8/8/3N4/1pBP4/1P4P1/5Pk1/3r2P1/6K1 b - - 0 56
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1274
Best move: Rd1#