Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Advance_Variation
Moves: 1. e4 e6 2. e5 d5 3. d4 c5 4. c3 Nc6 5. f4 Qb6 6. Nf3 cxd4 7. cxd4 Bb4+ 8. Bd2
Nxd4 *
Position (FEN): r1b1k1nr/pp3ppp/1q2p3/3pP3/1b1n1P2/5N2/PP1B2PP/RN1QKB1R w KQkq - 0 9
White to move.
Themes:  Opening  
Puzzle rating: 1900
Best move: Nxd4