King's Indian Attack

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Overview

King's Indian Attack is a named branch in the Flank Openings group of chess theory, classified under ECO A05.

The Flank Openings group covers flank openings — systems that delay the central pawn break and instead develop pieces and pawns on the wings.

The line arises from 4 plies — specifically the moves 1. Nf3 Nf6 2. g3 d5.

In the opening tree, this line branches off from Zukertort Opening, part of the broader Zukertort Opening system.

3 named variations grow from this line, including with Bf5, with e6, Yugoslav Variation.

Together the deeper variations number 9 across the full subtree.

Use the board to walk through every move, check how the position has scored on Lichess, or take it head-to-head against Stockfish.

ECO code: A05
Group: Flank Openings (A)
Plies: 4
Parent: Zukertort Opening
Direct variations: 3
Total in subtree: 9

This overview is generated automatically from the opening's metadata. Know this line well? Write a description — submissions are reviewed before publishing.

Statistics from Lichess

3,070,774 games · White 50.7% / Draw 6.7% / Black 42.6%

Moves	Games	W / D / B
Bg2	2,852,592
d4	80,032
d3	59,750
c4	56,171
b3	11,887
c3	3,960
e3	1,711
b4	926

Source: Lichess Opening Explorer · cached 2026-09-26 00:36:36

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Variations (3)

Show all 9 sub-variations (full subtree)

Overview

Statistics from Lichess

Variations (3)

Related variations at the same level