Chess puzzle (Checkmate)
Opening: Caro-Kann_Defense, Caro-Kann_Defense_Classical_Variation
Moves: 1. d4 c6 2. e4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Bd3 Qxd4 6. Nf3 Qd8 7. O-O e6 8.
Be3 Nf6 9. Nxf6+ Qxf6 10. Bg5 Qg6 11. Bxf5 Qxf5 *
Position (FEN): rn2kb1r/pp3ppp/2p1p3/5qB1/8/5N2/PPP2PPP/R2Q1RK1 w kq - 0 12
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 400
Best move: Qd8#