Chess puzzle (Advantage)
Opening: Vienna_Game, Vienna_Game_Other_variations
Moves: 1. e4 e5 2. Nc3 Bb4 3. Nf3 d6 4. Nd5 Bc5 5. d4 exd4 6. Nxd4 c6 7. Nc3 Qf6 8.
Be3 Ne7 9. Qe2 *
Position (FEN): rnb1k2r/pp2nppp/2pp1q2/2b5/3NP3/2N1B3/PPP1QPPP/R3KB1R b KQkq - 5 9
Black to move.
Themes:  Opening  
Puzzle rating: 920
Best move: Bxd4