Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Knight_Variation
Moves: 1. e4 e6 2. Nf3 c6 3. d4 d5 4. e5 c5 5. Bd3 Nc6 6. c3 Qb6 7. O-O cxd4 8. Nxd4
Nxd4 9. cxd4 Bd7 10. Bg5 Ne7 11. Nc3 Qxd4 12. Re1 h6 *
Position (FEN): r3kb1r/pp1bnpp1/4p2p/3pP1B1/3q4/2NB4/PP3PPP/R2QR1K1 w kq - 0 13
White to move.
Themes:  Opening  
Puzzle rating: 1921
Best move: Nb5