Opening guide
King's Indian Attack: Plans, Structures and Variations
Published Updated
The King’s Indian Attack as a structure rather than a script: the e4–e5 advance, kingside piece routes, c4 and ...c5 breaks, and the adjustments required by Black’s centre.
On this page
- Move-order records
- 20
- ECO coverage
- A05, A07, A08
- Reference move order
- A07 · 1. Nf3 d5 2. g3
- Position after reference line
- Black to move
Opening character
The King’s Indian Attack is a family of setups built around Nf3, g3, Bg2, castling, d3, Nbd2, and often e4. White postpones direct occupation of d4 and aims to reach a coherent middlegame against several black formations. The same moves are not equally useful against every setup: Black’s ...d5, ...c5, ...e5, or queenside fianchetto determines when White should play e4, c4, or d4.
Against a French-style centre, White often advances e5 and manoeuvres on the kingside while Black uses ...c5 and queenside expansion to challenge White’s space. Against an early ...e5, the centre may stay open and a c4 challenge can be more important than an e5 pawn chain. Calling both positions a King’s Indian Attack does not give them the same plan.
Central and pawn structures
A familiar closed structure has white pawns on e5 and d3 against black pawns on d5 and e6. White’s advanced e-pawn gains kingside space and supports routes such as Nf1–h2–g4; Black uses ...c5, ...Nc6, and queenside expansion while preparing to question e5 with ...f6. White must create play before Black’s extra queenside space becomes useful.
When White has not played e4–e5, the position can resemble a Réti or reversed King’s Indian. Pawns on c4 and d3 may challenge d5, while Black can use ...c6 and ...e5 for a broad centre. The g2-bishop becomes effective only when the f3-knight moves or central exchanges clear its diagonal.
Plans for both sides
White
- Complete Nf3, g3, Bg2, castling, and d3 in an order that still answers Black’s central threats; do not spend a tempo on Nbd2 if c4 is urgent.
- In a closed e5 structure, reroute Nf1–h2–g4 or Nf1–e3 and coordinate h4–h5 with pieces rather than advancing alone.
- Use c4 or d4 when Black’s centre can be challenged more effectively than attacked from the kingside.
Black
- Claim space with ...d5 and support it with ...Nf6, ...e6, or ...c6 before White completes the preferred setup for free.
- Attack a closed e5 chain with ...c5 and queenside play, while keeping enough defenders around the king for White’s knight manoeuvres.
- Exchange the g2-bishop or control g4 and e5 when that removes the main source of White’s kingside pressure.
Key pawn breaks
e5— White closes a French-style centre, gains kingside space, and drives a knight from f6 when the pawn is supported.c4— White challenges d5 and can redirect the game from a kingside setup to pressure on the centre and queenside....c5— Black attacks d4, gains queenside space, and may continue ...c4 to put pressure on d3.
Piece-placement logic
White’s b1-knight normally reaches d2 and the f3-knight may retreat through e1 or f1 before heading to e3, h2, or g4. The c1-bishop can go to g5, f4, or d2; burying it behind e3 and d2 without a route reduces the point of the setup.
Black places pieces according to the centre rather than mirroring the King’s Indian Defence. A knight on f6 attacks e4 but may be displaced by e5; the c8-bishop can develop before ...e6 or use d7, while queenside rooks often benefit from files opened by ...c5 and ...b5.
Recurring tactical themes
- In closed positions, Bxh6 or sacrifices on g6 can remove the dark-squared defenders, but only if the queen and knights can enter before Black closes the files.
- The manoeuvre Ng5 can attack e6 and h7 while a bishop on g2 supports the centre; ...h6 or ...Bxg5 may make the knight a target instead.
- Black’s ...c5 break may expose d3 or b2, and a queen on b6 can combine those targets with pressure on the long diagonal.
Practical errors to avoid
- White completes the full setup regardless of an immediate ...e5, ...c5, or ...d4 opportunity.
- A kingside pawn advance begins before the f1-knight and c1-bishop can join it.
- Black assumes White’s modest centre is harmless and allows e5 plus a free knight reroute.
- White keeps the f3-knight in front of the g2-bishop while claiming long-diagonal pressure that does not yet exist.
How the main branches differ
Who this repertoire suits
This is a useful framework for players who prefer recurring piece routes to forcing opening lines, provided they are willing to abandon the setup when the centre calls for c4 or d4. White should study one closed e5 structure and one open-centre alternative. Black’s best preparation is to claim central space and learn which white manoeuvre each pawn formation permits.
From understanding to practice
Use the guide to identify the structure and the pawn break you are aiming for, then rehearse only the branches you actually meet. The exact catalogue records preserve move-order detail without pretending that every named position needs a separate lesson.