Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Kan_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 b5 6. O-O Ne7 7. a4 b4 8. Be3
Nbc6 9. Nd2 Bb7 10. Nc4 Nxd4 *
Position (FEN): r2qkb1r/1b1pnppp/p3p3/8/PpNnP3/3BB3/1PP2PPP/R2Q1RK1 w kq - 0 11
White to move.
Themes:  Opening Mate in 1, Smothered Mate 
Puzzle rating: 937
Best move: Nd6#