Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Knight_Variation
Moves: 1. e4 e6 2. Nf3 b6 3. c3 Bb7 4. Qc2 Bc5 5. d4 Bd6 6. e5 Be7 7. Nbd2 Nc6 8. a3
f6 9. Nc4 fxe5 10. Ncxe5 Nxe5 11. Nxe5 Nf6 12. Bg5 d6 13. Bb5+ Kf8 14. Nd7+ *
Position (FEN): r2q1k1r/pbpNb1pp/1p1ppn2/1B4B1/3P4/P1P5/1PQ2PPP/R3K2R b KQ - 3 14
Black to move.
Themes:  Middlegame  
Puzzle rating: 1306
Best move: Nxd7