Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 f6 3. Bf4 Nc6 4. Nc3 e6 5. e3 a6 6. Bd3 b5 7. a3 Nge7 8. O-O
Ng6 9. Nh4 Nxf4 10. exf4 Nxd4 11. Nf3 Nc6 12. Re1 Bd6 13. f5 e5 14. Nxd5 Bd7
15. c3 Qc8 16. Qc2 Qb7 17. Nb4 Nxb4 18. axb4 Bc6 19. Be4 Bxe4 20. Qxe4 Qb8 21.
Nd4 O-O 22. Ne6 Rf7 23. Re3 Qc8 24. Rh3 Rb8 25. Qh4 h6 26. Qg4 Kh8 27. Qg6 Qg8
28. Rd1 Rb6 29. Re1 Rc6 30. Re4 Rc4 31. Rxc4 bxc4 32. Rh4 c6 33. Rxc4 Rd7 34.
Rxc6 e4 35. Rxa6 Be5 36. b5 *
Position (FEN): 6qk/3r2p1/R3NpQp/1P2bP2/4p3/2P5/1P3PPP/6K1 b - - 0 36
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 690
Best move: Rd1#