Catalan - closed
1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2
White pushes the queen's pawn to d4. Black develops the knight to f6. White plays the c-pawn to c4.
Black advances the king's pawn to e6. White advances the g-pawn to g3. Black moves the queen's pawn to d5.
White develops the light-squared bishop to g2.