King's Indian - 4.e4
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4
White pushes the queen's pawn to d4. Black develops the knight to f6. White moves the c-pawn to c4.
Black moves the g-pawn to g6. White develops the knight to c3. Black develops the dark-squared bishop to g7.
White advances the king's pawn to e4.