Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Nf3 O-O 5. Bc4 d5 6. Bd3 b6 7. c4 Bb7 8. cxd5
Bxd5 9. Nc3 e6 10. Rc1 Nbd7 11. Bxc7 Qe7 12. Nxd5 exd5 13. O-O Rac8 14. Bg3 Ne4
15. Bxe4 dxe4 16. Nd2 f5 17. Rxc8 Rxc8 18. Qb3+ Kh8 19. Nc4 g5 20. Nd6 Rf8 21.
Rc1 f4 22. Nc8 Qf6 23. Qd5 fxg3 24. Qxd7 Qxf2+ 25. Kh1 Qf1+ 26. Rxf1 *
Position (FEN): 2N2r1k/p2Q2bp/1p6/6p1/3Pp3/4P1p1/PP4PP/5R1K b - - 0 26
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 400
Best move: Rxf1#