King's Indian Attack
The KIA is a complete universal system: Nf3, g3, Bg2, d3, Nbd2, e4 against virtually anything. White plays a closed King's-Indian-style position with an extra tempo — attacking on the kingside while Black expands on the wing. Bobby Fischer's secret 1.one of Fischer's secret weapons.
If you want an opening that fights from the very first moves, King's Indian Attack is a superb candidate — principled, sharp and endlessly instructive.
After 7.e4 the position resolves into a tense centre: the central pawns still face each other, and the timing and manner of the coming exchange shapes the whole middlegame.
The moves
After 7. e4 — King's Indian Attack 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
Centre control
Tense 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
2 knights & light-squared bishop active
Knight & dark-squared bishop active
King safety
White king g1
Castled kingside
Black king g8
Castled kingside
Computed from the final position of the main line above — 13 plies, black to move.
Strategic ideas
Ideas for White
Execute the classic plan: e4-e5 space,Nbd2-c4/e4 regrouping,the f4-f5 and g4 breaks at the right moment.
Ideas for Black
Expand on the queenside with ...c5 and ...b5, fight for the e5 square, and time the ...the ...c5/...b5 breaks to deflect White's kingside attack.
Main variations (10)
KIA vs ...d5 Main
A07The main KIA tabiya: e4 space versus ...c5/...b5 queenside counterplay.
KIA vs ...c5
A07The Sicilian-style KIA: White plays d3/e4 development against Black's ...c5 setup.
KIA Double Fianchetto
A07The double-fianchetto structure: closed manoeuvring with the d4/d5 battle points.
KIA vs French Setup
A07The KIA against the French: the e5 wedge without the French's sharp main lines.
KIA vs Sicilian Setup
A07A anti-Sicilian path into KIA structures — solid and easy to remember.
Trojan Attack
A07The Trojan e5 push:with f4-f5 storms coming.
KIA Pachman System
A07the Re1 setup supporting f4-f5 storms against the French structure.
KIA vs Caro-Kann Setup
A07The KIA against the Caro structure — the safe, systematic squeeze.
Quick System
A07The fastest KIA move order — minimal theory, maximum system.
Franco Defence
A07The aggressive e5-wedge version — space attack against the French structure.
Plans & pawn structures
- 1The central tension is the key decision: releasing it too early hands the opponent a free tempo and a target, so keep it until a capture wins a file, a diagonal or a clear structural edge.
- 2Trade 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 tense centre: the central pawns still face each other, and the timing and manner of the coming exchange shapes the whole middlegame. 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 Attack
- As Black, resolve the central tension on your terms: force the exchange that gives you the better structure rather than letting the opponent choose the moment.
Reaches the same position as
These openings arrive at the very same board position by a different move order — a transposition. Knowing them lets you steer between systems and recognise when your opponent has walked into familiar territory.
Masters & history
Study plan & who it's for
You need only the main ideas — not a memory palace of theory — to play this well. Recommended for White players at club level and up.
Play through the main line above until the piece setup feels natural.
Learn the two or three critical pawn breaks for both sides.
Drill one variation at a time — always connecting moves to plans.