Καταλανικό άνοιγμα

A d4 and c4 opening in which White prepares Bg2 to create long-term pressure along the long diagonal.

The Catalan branch in which Black captures the c4-pawn and accepts pressure in return for the extra pawn.

The Catalan branch in which Black keeps the d5-pawn and builds a compact central position instead of capturing on c4.