Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Other_variations
Moves: 1. e4 c5 2. Nf3 d6 3. d4 Bg4 4. Bb5+ Nd7 5. dxc5 Bxf3 6. Qxf3 dxc5 7. e5 e6 8.
O-O Ne7 9. Nc3 a6 10. Ne4 axb5 *
Position (FEN): r2qkb1r/1p1nnppp/4p3/1pp1P3/4N3/5Q2/PPP2PPP/R1B2RK1 w kq - 0 11
White to move.
Themes:  Opening Mate in 1, Smothered Mate 
Puzzle rating: 940
Best move: Nd6#