Chess puzzle (Checkmate)
Opening: Danish_Gambit, Danish_Gambit_Other_variations
Moves: 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Nxc3 Nc6 5. Bc4 d6 6. h3 g6 7. Nf3 Na5 8.
Qa4+ Nc6 9. Bg5 f6 10. Bf4 Bd7 11. Qb3 Nge7 *
Position (FEN): r2qkb1r/pppbn2p/2np1pp1/8/2B1PB2/1QN2N1P/PP3PP1/R3K2R w KQkq - 4 12
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 668
Best move: Bf7#