E74ECO Guide

King's Indian, Averbakh, Main

The Averbakh main battle: Black strikes with ...c5/...e6 while White's clamp squeezes.

Black's weapon·Sharp·7 movesAdvanced

If you want an opening that fights from the very first moves, King's Indian, Averbakh, Main is a superb candidate — principled, sharp and endlessly instructive.

After 7…e6 the position resolves into a fluid centre — one side has staked a central pawn the other must decide how to challenge, so the structure is still being negotiated.

The moves

8a
b
c
d
e
f
g
h
7
6
5
4
3
2
1
1.2.3.4.5.6.7.

After 7... e6 — King's Indian, Averbakh, Main main line

Position breakdown

A factual read of the position after the main line — the files, the centre, the pawn structure and king safety that decide how the middlegame is played. These are computed from the actual board, not generic advice.

Files

a
b
c
d
e
f
g
h

Centre control

d5
e5
d4
e4

Fluid centre

The d4/d5/e4/e5 squares — who occupies the centre decides how open the game becomes.

Pawn skeleton

Pawns only — the structure that explains every open file and majority at a glance.

Material level

Queenside pawns 3–3

Kingside pawns 3–3

Development

White

Knight, dark-squared bishop & light-squared bishop active

Black

Knight & dark-squared bishop active

King safety

White king e1

Uncastled — take care

Black king g8

Castled kingside

Computed from the final position of the main line above — 14 plies, white to move.

Strategic ideas

Ideas for White

White aims for harmonious development, central control and well-timed pawn breaks.

Ideas for Black

Black targets the centre with counterplay, seizes outposts and strikes with the thematic pawn breaks.

Plans & pawn structures

  • 1The centre is still fluid: decide early whether to lock it with a pawn advance or dissolve it with an exchange, because that choice picks the whole middlegame plan for you.
  • 2Develop with a purpose: connect the pieces to a concrete plan (a break, a target square, an outpost) instead of making automatic moves.
  • 3Trade correctly: before every exchange ask which piece benefits from the resulting square colours and pawn structure.

Typical middlegame structures

The main line leads to a fluid centre — one side has staked a central pawn the other must decide how to challenge, so the structure is still being negotiated. No files have opened yet, so this is a manoeuvring struggle: improve your pieces and prepare the pawn break that will open the position on your terms.

Traps & tactical motifs

Every sharp opening has its traps — study the forcing lines around the centre and the f7/f2 squares before playing this in rated games.

Watch the typical motifs: pins against the pinned piece, knight forks after the natural captures, and queen sorties to a2/g2-style squares.

How to Play Against the King's Indian, Averbakh, Main

  • As White, strike at the fluid centre immediately with your own central pawn or piece pressure, before the opponent locks it into a shape that favours them.

Study plan & who it's for

Advanced material. Concrete move orders, deep tactical motifs and razor-thin theory mean this rewards Black players who are 1800+ and willing to do homework.

1

Play through the main line above until the piece setup feels natural.

2

Learn the two or three critical pawn breaks for both sides.

3

Drill one variation at a time — always connecting moves to plans.

Frequently asked questions