Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_La_Bourdonnais_Variation
Moves: 1. e4 e6 2. f4 d5 3. exd5 exd5 4. d4 c5 5. c3 Nf6 6. Nf3 cxd4 7. cxd4 Qa5+ 8.
Nc3 Bb4 9. Bd2 O-O 10. Be2 Bxc3 11. bxc3 Qb6 12. O-O Re8 13. Ne5 Nc6 14. Rb1
Qc7 15. Bb5 Bd7 16. Qc2 *
Position (FEN): r3r1k1/ppqb1ppp/2n2n2/1B1pN3/3P1P2/2P5/P1QB2PP/1R3RK1 b - - 10 16
Black to move.
Themes:  Middlegame  
Puzzle rating: 1860
Best move: Nxd4