Catalan Opening

1. d4 Nf6 2. c4 e6 3. g3

Catalan Opening is catalogued under ECO code E00. It is reached after 3 moves (5 half-moves): 1. d4 Nf6 2. c4 e6 3. g3. After the last move it is Black to play. White opens 1. d4. It is the defining line of the Catalan Opening family, which has 32 catalogued lines in total. 5 deeper lines continue from here, listed below.

Position shown after the last move; Black to play.