Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Advance_Variation
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. f4 Ne7 5. dxc5 Nec6 6. Be3 Nd7 7. c4 dxc4 8. Bxc4
Bxc5 9. Bxc5 Nxc5 10. Qxd8+ Kxd8 11. Nc3 a6 12. O-O-O+ Ke7 13. Nf3 b5 14. Nxb5
*
Position (FEN): r1b4r/4kppp/p1n1p3/1Nn1P3/2B2P2/5N2/PP4PP/2KR3R b - - 0 14
Black to move.
Themes:  Middlegame  
Puzzle rating: 1186
Best move: axb5