Chess puzzle (Checkmate)
Opening: Blackmar-Diemer_Gambit, Blackmar-Diemer_Gambit_von_Popiel_Gambit
Moves: 1. d4 Nf6 2. Nc3 d5 3. e4 dxe4 4. Bg5 Bf5 5. Qe2 Qxd4 6. Qb5+ Bd7 7. Qxb7 Ng4
8. Nh3 Bc6 9. Bb5 Qd7 10. Bxc6 Qxc6 *
Position (FEN): rn2kb1r/pQp1pppp/2q5/6B1/4p1n1/2N4N/PPP2PPP/R3K2R w KQkq - 0 11
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1007
Best move: Qc8#