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 b6 6. Nc3 Bg4 7. Be2 a5 8. Qa4+
Bd7 9. Nb5 Nf6 10. Bd3 c6 *
Position (FEN): r2qkb1r/3bnppp/1ppp1n2/pN1Pp3/Q1P1P3/3B1N2/PP3PPP/R1B1K2R w KQkq - 0 11
White to move.
Themes:  Middlegame Mate in 1, Smothered Mate 
Puzzle rating: 1184
Best move: Nxd6#