Chess puzzle (Checkmate)
Opening: Philidor_Defense, Philidor_Defense_Other_variations
Moves: 1. e4 e5 2. Nf3 d6 3. Bc4 h6 4. d4 exd4 5. Qxd4 c5 6. Qd5 Qf6 7. Nc3 Nd7 8. Nb5
Nb6 9. Qd3 Qd8 10. O-O a6 11. Nc3 Ne7 12. Nd5 Nxc4 13. Qxc4 Be6 14. Re1 g5 *
Position (FEN): r2qkb1r/1p2np2/p2pb2p/2pN2p1/2Q1P3/5N2/PPP2PPP/R1B1R1K1 w kq - 0 15
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1326
Best move: Nf6#