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ECO E00

ECO E00–E99 — Indian Defenses: 1.d4 Nf6 with the Nimzo-Indian, Queen's Indian, Catalan and King's Indian complexes.

4 named opening lines are classified under ECO code E00.

Catalan Opening — 1.d4 Nf6 2.c4 e6 3.g3
Catalan Opening: Hungarian Gambit — 1.d4 Nf6 2.c4 e6 3.g3 e5
Indian Defense: Devin Gambit — 1.d4 Nf6 2.c4 e6 3.g4
Indian Defense: Seirawan Attack — 1.d4 Nf6 2.c4 e6 3.Bg5