Home › Openings › King's Gambit Declined › King's Gambit Declined: Classical Variation King's Gambit Declined: Classical Variation, Walthoffen Attack ECO C30 · 1. e4 e5 2. f4 Bc5 3. Qh5 Related variationsKing's Gambit Declined: Classical Variation, Rotlewi CountergambitKing's Gambit Declined: Classical Variation, Rubinstein CountergambitKing's Gambit Declined: Classical Variation, Euwe Attack Practice this opening · Play against the computer