ECO E61

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

6 named opening lines are classified under ECO code E61.

• King's Indian Defense — 1.d4 Nf6 2.c4 g6 3.Nc3
• King's Indian Defense: Fianchetto Variation, Benjamin Defense — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3 O-O 6.Bg2 c6 7.O-O Qb6
• King's Indian Defense: Semi-Classical Variation — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 O-O 5.e3 d6 6.Be2
• King's Indian Defense: Semi-Classical Variation, Exchange Variation — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 O-O 5.e3 d6 6.Be2 Nbd7 7.O-O e5 8.dxe5 dxe5
• King's Indian Defense: Semi-Classical Variation, Queenside Storm Line — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 O-O 5.e3 d6 6.Be2 Nbd7 7.O-O e5 8.b4
• King's Indian Defense: Smyslov Variation — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.Bg5