King's Gambit Accepted: Bishop's Gambit, Bryan Countergambit

The King's Gambit Accepted: Bishop's Gambit, Bryan Countergambit is a chess opening classified under ECO code C33 in the Open Games & French Defense family, beginning with 1.e4 e5 or 1.e4 e6, including the Italian Game, Ruy Lopez, and French Defense. It is reached after 4 moves: 1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 b5. The resulting position leaves white to move.