Danish gambit - Soerensen defence
1. e4 e5 2. d4 exd4 3. c3 d5
White moves the king's pawn to e4. Black pushes the king's pawn to e5. White plays the queen's pawn to d4.
Black captures on d4 with the king's pawn. White pushes the c-pawn to c3. Black pushes the queen's pawn to d5.