Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Advance_Variation
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 cxd4 5. Nxd4 Nc6 6. c3 Nxe5 7. f4 Nc6 8. Bb5
Ne7 9. O-O Qb6 10. Bxc6+ Nxc6 11. Be3 Qxb2 *
Position (FEN): r1b1kb1r/pp3ppp/2n1p3/3p4/3N1P2/2P1B3/Pq4PP/RN1Q1RK1 w kq - 0 12
White to move.
Themes: Defensive Move Middlegame  
Puzzle rating: 2146
Best move: Nb3