Chess puzzle (Checkmate)
Opening: Caro-Kann_Defense, Caro-Kann_Defense_Two_Knights_Attack
Moves: 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. d3 h6 6. b3 e6 7. Bb2 Nd7 8. Be2
Ne7 *
Position (FEN): r2qkb1r/pp1nnpp1/2p1p2p/5b2/4N3/1P1P1N2/PBP1BPPP/R2QK2R w KQkq - 4 9
White to move.
Themes:  Opening Mate in 1, Smothered Mate 
Puzzle rating: 818
Best move: Nd6#