Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Advance_Variation
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. b3 Nge7 7. g4 Ng6 8. Be3
cxd4 9. cxd4 Bb4+ 10. Nbd2 Bc3 11. Rc1 Bxd4 12. Bxd4 *
Position (FEN): r1b1k2r/pp3ppp/1qn1p1n1/3pP3/3B2P1/1P3N2/P2N1P1P/2RQKB1R b Kkq - 0 12
Black to move.
Themes:  Middlegame  
Puzzle rating: 852
Best move: Nxd4