Chess puzzle (Advantage)
Opening: Three_Knights_Opening, Three_Knights_Opening_Winawer_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Nc3 f5 4. exf5 d5 5. Qe2 e4 6. Nd4 *
Position (FEN): r1bqkbnr/ppp3pp/2n5/3p1P2/3Np3/2N5/PPPPQPPP/R1B1KB1R b KQkq - 1 6
Black to move.
Themes: Hanging Piece Opening  
Puzzle rating: 734
Best move: Nxd4