E04
Catalan Opening: Open
1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4
The Catalan Opening: Open is a chess opening classified under ECO code E04. It is reached after the moves 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4.
It belongs to the Catalan Opening family — one of many ways the line can branch. Understanding the parent system’s plans is the fastest way to play this variation well.
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