Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Steinitz_Variation
Moves: 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 cxd4 8. Nxd4
a6 9. Qd2 Bc5 10. O-O-O b5 *
Position (FEN): r1bqk2r/3n1ppp/p1n1p3/1pbpP3/3N1P2/2N1B3/PPPQ2PP/2KR1B1R w kq - 0 11
White to move.
Themes: Hanging Piece Opening  
Puzzle rating: 820
Best move: Nxc6