Chess puzzle (Checkmate)
Opening: French_Defense, French_Defense_La_Bourdonnais_Variation
Moves: 1. e4 e6 2. f4 d5 3. e5 c5 4. d4 Nc6 5. Bd3 Nxd4 6. c3 Nc6 7. Nf3 Bd7 8. O-O d4
9. Nbd2 dxc3 10. bxc3 Nge7 11. Ne4 b6 *
Position (FEN): r2qkb1r/p2bnppp/1pn1p3/2p1P3/4NP2/2PB1N2/P5PP/R1BQ1RK1 w kq - 0 12
White to move.
Themes:  Opening Mate in 1, Smothered Mate 
Puzzle rating: 900
Best move: Nd6#