Chess puzzle (Checkmate)
Opening: Scotch_Game, Scotch_Game_Other_variations
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 d6 4. d5 Nce7 5. c4 c6 6. Nc3 cxd5 7. cxd5 Bd7 8. Nb5
a6 *
Position (FEN): r2qkbnr/1p1bnppp/p2p4/1N1Pp3/4P3/5N2/PP3PPP/R1BQKB1R w KQkq - 0 9
White to move.
Themes:  Opening Mate in 1, Smothered Mate 
Puzzle rating: 1000
Best move: Nxd6#