King's Gambit Declined - Falkbeer - 5.de
1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4
White advances the king's pawn to e4. Black advances the king's pawn to e5. White pushes the f-pawn to f4.
Black moves the queen's pawn to d5. White captures on d5 with the king's pawn. Black moves the king's pawn to e4.
White moves the queen's pawn to d3. Black develops the knight to f6. White captures on e4 with the queen's pawn.