Chess puzzle (Advantage)
Opening: Bird_Opening, Bird_Opening_Horsefly_Defense
Moves: 1. f4 Nh6 2. Nf3 Nc6 3. Nc3 d5 4. Nxd5 *
Position (FEN): r1bqkb1r/ppp1pppp/2n4n/3N4/5P2/5N2/PPPPP1PP/R1BQKB1R b KQkq - 0 4
Black to move.
Themes: Hanging Piece Opening  
Puzzle rating: 869
Best move: Qxd5