Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. d3 d6 5. Be2 Bb4 6. Bd2 Bg4 7. O-O Bxf3 8.
Bxf3 Nd4 9. a3 Bxc3 10. Bxc3 Qf6 11. Bxd4 exd4 12. Re1 O-O-O 13. Bg4+ Kb8 14.
Qf3 h6 15. Qxf6 Nxf6 16. Bh3 Rhe8 17. f3 Nh5 18. g3 g5 19. Bg4 Nf6 20. Bh3 c5
21. f4 gxf4 22. gxf4 Rg8+ 23. Kh1 Nh5 24. f5 Nf4 25. Bf1 f6 26. Be2 Nh3 27. Bf1
*
Position (FEN): 1k1r2r1/pp6/3p1p1p/2p2P2/3pP3/P2P3n/1PP4P/R3RB1K b - - 3 27
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 530
Best move: Nf2#