The Indian Opening arises after 1.e4 e5 2.d3. ECO code: C20.

White plays 2.d3, preparing a King's Indian Attack setup. This passive but solid approach avoids open game theory. After 2...Nf6, White typically plays Nd2, g3, Bg2, Nf3, and 0-0. The position is sound but gives Black easy equality.