Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Rubinstein_Variation
Moves: 1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Bd3 Be7
8. Bf4 O-O 9. h3 c5 10. c3 b6 11. O-O Bb7 12. Qe2 Nd5 13. Bg3 Bd6 14. Be5 Bxe5
15. dxe5 *
Position (FEN): r2q1rk1/pb3ppp/1p2p3/2pnP3/8/2PB1N1P/PP2QPP1/R4RK1 b - - 0 15
Black to move.
Themes:  Middlegame  
Puzzle rating: 1264
Best move: Nf4