Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Knight_Variation
Moves: 1. e4 e6 2. Nf3 d5 3. e5 d4 4. c3 c5 5. Bb5+ Bd7 6. Na3 a6 7. Bc4 Nc6 8. O-O b5
9. Nxb5 *
Position (FEN): r2qkbnr/3b1ppp/p1n1p3/1Np1P3/2Bp4/2P2N2/PP1P1PPP/R1BQ1RK1 b kq - 0 9
Black to move.
Themes:  Opening  
Puzzle rating: 1367
Best move: axb5