Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Knight_Variation
Moves: 1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. Qe2+ Be7 5. d4 Nf6 6. Nc3 O-O 7. Qb5 c6 8.
Qd3 Na6 9. Be2 Nb4 10. Qd1 c5 11. a3 Nc6 12. dxc5 Bxc5 13. O-O Bg4 14. h3 Bf5
15. Bg5 Be7 16. Bxf6 Bxf6 17. Rb1 Nd4 *
Position (FEN): r2q1rk1/pp3ppp/5b2/3p1b2/3n4/P1N2N1P/1PP1BPP1/1R1Q1RK1 w - - 2 18
White to move.
Themes:  Opening  
Puzzle rating: 816
Best move: Nxd4