Chess puzzle (Checkmate)
Opening: Vienna_Game, Vienna_Game_Vienna_Gambit
Moves: 1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Be7 6. d4 Bh4+ 7. g3 Be7 8.
Bg2 Bg4 9. O-O Qd7 10. Qe2 Nc6 11. Nxe4 Nxd4 12. Qd3 dxe4 13. Qxe4 O-O-O 14.
Be3 Bc5 15. Nxd4 Bxd4 *
Position (FEN): 2kr3r/pppq1ppp/8/4P3/3bQ1b1/4B1P1/PPP3BP/R4RK1 w - - 0 16
White to move.
Themes: Queenside Attack Middlegame Mate in 1 
Puzzle rating: 1233
Best move: Qxb7#