Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Knight_Variation
Moves: 1. e4 e6 2. Nf3 d5 3. e5 c5 4. b3 Nc6 5. d4 Bd7 6. Bb5 *
Position (FEN): r2qkbnr/pp1b1ppp/2n1p3/1BppP3/3P4/1P3N2/P1P2PPP/RNBQK2R b KQkq - 2 6
Black to move.
Themes:  Opening  
Puzzle rating: 1272
Best move: Qa5+