Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Bc4 Be7 5. Qxd4 Nf6 6. Nc3 O-O 7. Bg5 Nc6 8.
Qd3 Nb4 9. Qd2 Bg4 10. O-O-O h6 11. Bxf6 Bxf6 12. Nd5 Nxd5 13. Qxd5 Be6 14. Qb5
a6 15. Qb4 Bxc4 16. Qxc4 b5 17. Qd5 Qe7 18. Rhe1 Rad8 19. Qc6 Ra8 20. e5 dxe5
21. Rd7 Qe6 22. Qxe6 fxe6 23. Rxc7 a5 24. Nxe5 Bxe5 25. Rxe5 Rxf2 26. Rxe6 Rd8
27. Rg6 *
Position (FEN): 3r2k1/2R3p1/6Rp/pp6/8/8/PPP2rPP/2K5 b - - 2 27
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 756
Best move: Rf1#