Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Alapin_Variation
Moves: 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. Nf3 e5 5. d4 e4 6. Ne5 Be6 7. Bf4 Qd8 8. Bb5+
Nd7 9. d5 a6 10. dxe6 axb5 11. exd7+ Ke7 12. Nc6+ bxc6 *
Position (FEN): r2q1bnr/3Pkppp/2p5/1pp5/4pB2/2P5/PP3PPP/RN1QK2R w KQ - 0 13
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1516
Best move: Qd6#