Chess puzzle (Advantage)
Opening: Bird_Opening, Bird_Opening_Williams_Gambit
Moves: 1. e4 d5 2. f4 dxe4 3. d3 exd3 4. Bxd3 Bg4 *
Position (FEN): rn1qkbnr/ppp1pppp/8/8/5Pb1/3B4/PPP3PP/RNBQK1NR w KQkq - 1 5
White to move.
Themes: Hanging Piece Opening  
Puzzle rating: 1499
Best move: Qxg4