Chess puzzle (Advantage)
Opening: Vienna_Game, Vienna_Game_Vienna_Gambit
Moves: 1. e4 e5 2. Nc3 Nf6 3. f4 exf4 4. Nf3 Be7 5. d4 d5 6. e5 Ne4 7. Nxe4 *
Position (FEN): rnbqk2r/ppp1bppp/8/3pP3/3PNp2/5N2/PPP3PP/R1BQKB1R b KQkq - 0 7
Black to move.
Themes:  Opening  
Puzzle rating: 1185
Best move: dxe4