Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Tarrasch_Variation
Moves: 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 cxd4 5. Nxd4 e5 6. N4f3 dxe4 7. Nxe5 Qd5 8.
Nec4 Nf6 9. Ne3 Qc6 10. a4 a6 11. Bb5 axb5 12. axb5 Rxa1 13. bxc6 Nxc6 14. O-O
Be7 15. Nb3 Ra8 16. Nd4 O-O 17. Nef5 Bc5 18. Be3 Rd8 19. c3 *
Position (FEN): r1br2k1/1p3ppp/2n2n2/2b2N2/3Np3/2P1B3/1P3PPP/3Q1RK1 b - - 0 19
Black to move.
Themes:  Middlegame  
Puzzle rating: 1642
Best move: Bxf5