Chess puzzle (Crushing)
Opening: French_Defense, French_Defense_Advance_Variation
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 Qb6 5. Nc3 Nc6 6. Na4 Qb4+ 7. Nc3 cxd4 8. a3
Qa5 9. Nxd4 Bb4 *
Position (FEN): r1b1k1nr/pp3ppp/2n1p3/q2pP3/1b1N4/P1N5/1PP2PPP/R1BQKB1R w KQkq - 1 10
White to move.
Themes:  Opening  
Puzzle rating: 2028
Best move: axb4