Chess puzzle (Checkmate)
Moves: 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. c4 c5 5. Nf3 Be7 6. O-O cxd4 7. Nxd4 Nc6 8. Nc3
O-O 9. Bf4 e5 10. Nxc6 bxc6 11. Bxe5 d6 12. Bxc6 dxe5 13. Bxa8 Qc7 14. Nd5 Nxd5
15. Bxd5+ Kh8 16. a3 e4 17. Qd4 Bc5 18. Qc3 f4 19. b4 Bxf2+ 20. Rxf2 e3 21.
Rxf4 Rxf4 22. gxf4 Qxf4 23. Rf1 Qg5+ 24. Kh1 Qe7 25. Qe5 Qxe5 *
Position (FEN): 2b4k/p5pp/8/3Bq3/1PP5/P3p3/4P2P/5R1K w - - 0 26
White to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 599
Best move: Rf8#