Queen's pawn game
1. d4 Nf6 2. c4 e6 3. Nf3
White plays the queen's pawn to d4. Black develops the knight to f6. White plays the c-pawn to c4.
Black pushes the king's pawn to e6. White develops the knight to f3.
White plays the queen's pawn to d4. Black develops the knight to f6. White plays the c-pawn to c4.
Black pushes the king's pawn to e6. White develops the knight to f3.