Chess puzzle (Checkmate)
Opening: Scotch_Game, Scotch_Game_Goring_Gambit
Moves: 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 Nf6 6. Bc4 Bb4 7. e5 Ng4 8.
Bg5 Be7 9. Bxe7 Qxe7 10. Nd5 Qc5 11. Nxc7+ Kd8 12. Nxa8 *
Position (FEN): N1bk3r/pp1p1ppp/2n5/2q1P3/2B3n1/5N2/PP3PPP/R2QK2R b KQ - 0 12
Black to move.
Themes: Attacking f2 or f7 Middlegame Mate in 1 
Puzzle rating: 1487
Best move: Qxf2#