Chess puzzle (Checkmate)
Moves: 1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. e3 Bg4 5. Qb3 Qb6 6. Ne5 Bf5 7. cxd5 Nxd5 8.
Qxb6 axb6 9. Na3 b5 10. f3 Nb4 11. e4 Be6 12. Bd2 N8a6 13. d5 f6 14. Nd3 Nxd3+
15. Bxd3 Bf7 16. O-O e6 17. dxc6 bxc6 18. Be3 Nb4 19. Bb1 e5 20. Bd2 Kd7 21.
Rd1 Kc7 22. Bxb4 Bxb4 23. Nc2 Bc5+ 24. Kh1 b4 25. Rc1 Rhd8 26. a3 b3 27. Ne1
Be3 28. Rc3 Bd2 29. Nd3 Bxc3 30. bxc3 Bc4 31. Nb2 Be6 32. Bd3 c5 33. a4 c4 34.
Bxc4 Bxc4 35. Nxc4 Rxa4 36. Rxa4 *
Position (FEN): 3r4/2k3pp/5p2/4p3/R1N1P3/1pP2P2/6PP/7K b - - 0 36
Black to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 428
Best move: Rd1#