King's Indian - Four pawns attack - 6.Be2
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Be2
White moves the queen's pawn to d4. Black develops the knight to f6. White plays 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. Black moves the queen's pawn to d6. White pushes the f-pawn to f4.
Black castles kingside. White develops the light-squared bishop to e2.