Does King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit, Morphy Defense work for White at All Ratings?
At All Ratings, King's Gambit Declined: Falkbeer Countergambit, Charousek Gambit, Morphy Defense gives White a -20.5% minimum advantage (90% confidence). This gambit underperforms at this level.