Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. Bd3 c5 5. dxc5 Bxc5 6. e5 Nfd7 7. Ngf3 Nc6 8.
Nb3 Be7 9. O-O Ncxe5 10. Bf4 Nxd3 11. Qxd3 O-O 12. Ne5 Nxe5 13. Bxe5 Bf6 14.
Qg3 Bxe5 15. Qxe5 f6 16. Qg3 e5 17. f4 Qb6+ 18. Kh1 Bd7 19. fxe5 fxe5 20. Rxf8+
Rxf8 21. Qxe5 Qf2 22. Qxd5+ Kh8 23. Rg1 Bc6 24. Qd6 Qxg2+ 25. Rxg2 *
Position (FEN): 5r1k/pp4pp/2bQ4/8/8/1N6/PPP3RP/7K b - - 0 25
Black to move.
Themes: Pin Endgame Mate in 1 
Puzzle rating: 815
Best move: Rf1#