Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Orthoschnapp_Gambit
Moves: 1. e4 e6 2. c4 d5 3. cxd5 exd5 4. Qb3 Qf6 5. Nc3 Bc5 6. Nf3 Ne7 7. Bb5+ Bd7 8.
Bxd7+ Nxd7 9. Qxb7 *
Position (FEN): r3k2r/pQpnnppp/5q2/2bp4/4P3/2N2N2/PP1P1PPP/R1B1K2R b KQkq - 0 9
Black to move.
Themes:  Middlegame  
Puzzle rating: 1631
Best move: Rb8