King's Gambit Accepted - Cunningham - Bertin gambit
1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Bc4 Bh4+ 5. g3
White pushes the king's pawn to e4. Black moves the king's pawn to e5. White advances the f-pawn to f4.
Black captures on f4 with the king's pawn. White develops the knight to f3. Black develops the dark-squared bishop to e7.
White develops the light-squared bishop to c4. Black places the dark-squared bishop to h4, giving check. White plays the g-pawn to g3.