ECO E81

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 E81.

• King's Indian Defense: Steiner Attack — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5
• King's Indian Defense: Sämisch Variation, Bobotsov-Korchnoi-Petrosian Variation — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Nge2
• King's Indian Defense: Sämisch Variation, Byrne Defense — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c6 7.Bd3 a6
• King's Indian Defense: Sämisch Variation, Normal Defense — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O
• King's Indian Defense: Sämisch Variation, Sämisch Gambit — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5
• King's Indian Defense: Sämisch Variation, Sämisch Gambit Accepted — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.dxc5 dxc5 8.Qxd8 Rxd8 9.Bxc5