Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 h6 5. c3 a6 6. O-O d6 7. h3 Be6 8. Bb3
Bxb3 9. Qxb3 Rb8 10. Nbd2 Nf6 11. Re1 O-O 12. Nf1 Kh8 13. Be3 Bxe3 14. Nxe3 Nh5
15. g3 Qd7 16. Kg2 Ne7 17. Rad1 f5 18. exf5 Nxf5 19. Nxf5 Qxf5 20. Qd5 c6 21.
Qe4 Rf7 22. Qxf5 Rxf5 23. g4 Rxf3 24. Kxf3 Rf8+ 25. Ke4 Nf4 26. h4 Ng2 27. Rh1
*
Position (FEN): 5r1k/1p4p1/p1pp3p/4p3/4K1PP/2PP4/PP3Pn1/3R3R b - - 2 27
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 841
Best move: Rf4#