Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Queens_Knight
Moves: 1. e4 e6 2. Nc3 b6 3. d4 Bb7 4. f4 Bb4 5. Bd3 f5 6. Qe2 fxe4 7. Bxe4 Bxe4 8.
Qxe4 Nc6 9. d5 Nf6 10. Qe3 Nxd5 11. Qd3 Nxf4 *
Position (FEN): r2qk2r/p1pp2pp/1pn1p3/8/1b3n2/2NQ4/PPP3PP/R1B1K1NR w KQkq - 0 12
White to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 969
Best move: Bxf4