Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Advance_Variation
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 Qb6 5. a3 Nc6 6. dxc5 Bxc5 7. Nc3 Bxf2+ 8.
Ke2 Nge7 9. Na4 Qb5+ 10. Kxf2 Qxa4 11. Bd3 Nd4 *
Position (FEN): r1b1k2r/pp2nppp/4p3/3pP3/q2n4/P2B1N2/1PP2KPP/R1BQ3R w kq - 2 12
White to move.
Themes:  Opening  
Puzzle rating: 1744
Best move: b3