Queen's pawn - Torre attack - Wagner gambit
1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e4
White pushes the queen's pawn to d4. Black develops the knight to f6. White develops the knight to f3.
Black plays the king's pawn to e6. White develops the dark-squared bishop to g5. Black pushes the c-pawn to c5.
White pushes the king's pawn to e4.