Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Classical_Variation
Moves: 1. e4 Nf6 2. Nc3 e6 3. d4 d5 4. e5 Nfd7 5. Nf3 c5 6. Bb5 Nc6 7. dxc5 Bxc5 8.
Bg5 Qc7 9. Bf4 O-O 10. O-O f6 11. exf6 *
Position (FEN): r1b2rk1/ppqn2pp/2n1pP2/1Bbp4/5B2/2N2N2/PPP2PPP/R2Q1RK1 b - - 0 11
Black to move.
Themes: Hanging Piece Opening  
Puzzle rating: 1226
Best move: Qxf4