Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Knight_Variation
Moves: 1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Bd6 5. Bg5 Ne7 6. Nc3 c6 7. Qe2 O-O 8.
O-O-O f6 9. Qe1 *
Position (FEN): rnbq1rk1/pp2n1pp/2pb1p2/3p2B1/3P4/2N2N2/PPP2PPP/2KRQB1R b - - 1 9
Black to move.
Themes:  Opening  
Puzzle rating: 1278
Best move: fxg5