Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Other_variations
Moves: 1. e4 e6 2. Bc4 Qf6 3. Nh3 Bc5 4. b4 *
Position (FEN): rnb1k1nr/pppp1ppp/4pq2/2b5/1PB1P3/7N/P1PP1PPP/RNBQK2R b KQkq - 0 4
Black to move.
Themes: Hanging Piece Opening  
Puzzle rating: 1264
Best move: Qxa1