Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 f6 3. Nc3 e6 4. e4 dxe4 5. Nxe4 Nc6 6. c3 Bd7 7. Bd3 Nh6 8.
Bxh6 gxh6 9. Qc2 Qe7 10. O-O-O O-O-O 11. Nc5 Bg7 12. Bxh7 f5 13. Nxd7 Rxd7 14.
Bg6 Rg8 15. Rhe1 Bf6 16. Bxf5 Qg7 17. Bxe6 Rf8 18. Bxd7+ Kxd7 19. Qf5+ Kd8 20.
Qd5+ Kc8 21. Ne5 Nxe5 22. dxe5 Bg5+ 23. Kb1 Qg6+ 24. Ka1 Rxf2 25. Qd7+ Kb8 26.
Qd8+ Bxd8 *
Position (FEN): 1k1b4/ppp5/6qp/4P3/8/2P5/PP3rPP/K2RR3 w - - 0 27
White to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 896
Best move: Rxd8#