Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. Nf3 Bg4 7. Be3 Nd7
8. Bd3 Qc7 9. Qd2 O-O-O 10. O-O-O h5 11. h3 Bxf3 12. gxf3 e6 13. f4 f5 14. Kb1
c5 15. Qc3 Bg7 16. Rhg1 Bxd4 17. Bxd4 cxd4 18. Qxd4 Nc5 19. Qf6 Qxf4 20. Qxf7
Qxf2 21. Rg7 Rd7 22. Qf6 Rhd8 23. Rxd7 Rxd7 24. Rf1 Qxf1+ 25. Bxf1 *
Position (FEN): 2k5/pp1r4/4pQ2/2n2p1p/8/7P/PPP5/1K3B2 b - - 0 25
Black to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 604
Best move: Rd1#