About this opening
King's Indian Defense: Steiner Attack is an opening in the Encyclopedia of Chess Openings,
classified under code E81. ECO group E (E00–E99)
covers Indian defences against 1.d4, covering the Nimzo-Indian, Queen's Indian, King's Indian and Catalan systems. This particular variation is reached
after 11 half-moves from the
starting position, with the move sequence 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Bg5.
It belongs to the King's Indian Defense family. Within that family this is a sub-variation (the Steiner Attack line).
The opening sequence in prose form: 1.d4 Nf6, 2.c4 g6, 3.Nc3 Bg7, 4.e4 d6, 5.f3 O-O, 6.Bg5. From this position the encyclopaedia records no further canonical continuations — practical play branches into unnamed transpositions or returns to the parent line for alternative ideas.