Chess Opening Theory/1. e4/1...e5/2. f4/2...exf4/3. Bc4/3...Qh4

= King's Bishop Gambit Accepted =

3...Qh4+
Black stops White from castling, but in exchange for placing the Queen in poor position. White will later win a tempo by attacking the queen via Nf3.

Theory table
1. e4 e5 2.f4 exf4 3.Bc4 Qh4+


 * Modern Chess Openings: MCO-14. 1999. Nick de Firmian, Walter Korn. ISBN 0-8129-3084-3.