Catalan Opening Open Defense Intermediate (1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4) Chess Puzzles

In the catalan opening open defense intermediate, White usually reaches the Catalan after 1.d4 Nf6 2.c4 e6 3.g3, and Black chooses the Open Defense by taking on c4 with ...dxc4. The defining feature is that Black keeps the extra c4-pawn for a while, while White relies on the fianchettoed bishop on g2 to pressure the long diagonal and recover the pawn later.