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ECO E66

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

1 named opening lines are classified under ECO code E66.

King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Advance Line — 1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O c5 7.Nc3 Nc6 8.d5