Chess puzzle (Checkmate)
Opening: Philidor_Defense, Philidor_Defense_Exchange_Variation
Moves: 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 c5 5. Bb5+ Bd7 6. Bxd7+ Nxd7 7. Nf5 Ne7 *
Position (FEN): r2qkb1r/pp1nnppp/3p4/2p2N2/4P3/8/PPP2PPP/RNBQK2R w KQkq - 2 8
White to move.
Themes:  Opening Mate in 1, Smothered Mate 
Puzzle rating: 1371
Best move: Nxd6#