Chess puzzle (Checkmate)
Opening: Vienna_Game, Vienna_Game_Vienna_Gambit
Moves: 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nxe4 dxe4 6. Qe2 Bf5 7. Qb5+ Nc6
8. d4 Qxd4 9. Qxb7 Rd8 10. Bg5 Be7 11. Bxe7 Kxe7 12. Qxc6 *
Position (FEN): 3r3r/p1p1kppp/2Q5/4Pb2/3qp3/8/PPP3PP/R3KBNR b KQ - 0 12
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1113
Best move: Qd2#