Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. e3 Be7 5. Nc3 O-O 6. Bd3 dxc4 7. Bxc4 a6 8. Bd3
c5 9. O-O cxd4 10. Nxd4 e5 11. Nf5 Nc6 12. Nxe7+ Qxe7 13. Ne4 Rd8 14. Nxf6+
Qxf6 15. Qe2 Bf5 16. Bxf5 Qxf5 17. Bd2 Qc2 18. Rfd1 Qxb2 19. Rab1 Qxa2 20. Rxb7
Rd6 21. Qf3 Rf8 22. Bc3 Rf6 23. Qg3 Qc2 24. Qg4 Qxf2+ 25. Kh1 Qf1+ 26. Rxf1 *
Position (FEN): 5rk1/1R3ppp/p1n2r2/4p3/6Q1/2B1P3/6PP/5R1K b - - 0 26
Black to move.
Themes:  Middlegame Back Rank Mate, Mate in 1 
Puzzle rating: 1085
Best move: Rxf1#