Chess puzzle (Advantage)
Opening: Vienna_Game, Vienna_Game_Vienna_Gambit
Moves: 1. e4 e5 2. Nc3 Nf6 3. f4 d6 4. Nf3 Be7 5. fxe5 dxe5 6. Nxe5 O-O 7. Bc4 *
Position (FEN): rnbq1rk1/ppp1bppp/5n2/4N3/2B1P3/2N5/PPPP2PP/R1BQK2R b KQ - 2 7
Black to move.
Themes:  Opening  
Puzzle rating: 1479
Best move: Qd4