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King's Indian Attack report from your own games

King's Indian Attack report from your own games

Flexible system with kingside fianchetto. See your attacking success.

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King's Indian Attack Report

48 GAMESSample Data
Win Rate
54%

Performance vs Other Openings

King's Indian Attack54% Win
Other Openings48% Win

Key Insights

When e5 is played at the right moment, your win rate soars; mistimed pushes are punished
white
High Impact

e5 Advance Timing Determines Win Rate Across All KIA Lines

What this means
The e5 pawn advance is the signature break in the King's Indian Attack, and your results vary dramatically based on timing. In your 48 KIA games, when e5 is played after full kingside development (Nf3, g3, Bg2, O-O, Re1, Nbd2 with the knight ready to go to f1-h2-g4 or f1-e3), your win rate is 65% across 20 games. When e5 is pushed before the knight rerouting is set up (typically before move 12), your win rate drops to 38% across 16 games. Game #156 shows ideal timing: after Nf3 g3 Bg2 O-O d3 Nbd2 Re1 e4 Nf1 e5, the break came on move 11 with all pieces optimally placed, and the kingside attack was irresistible. Game #203 shows the danger: e5 on move 8 before Nbd2 was played, and Black's ...dxe5 followed by ...Nd5 gave Black a dominant central knight with no white pieces ready to attack.
How to improve
Treat e5 as a loaded weapon — powerful but requiring careful preparation. The checklist before playing e5 in the KIA should be: (1) king is castled, (2) rook is on e1 supporting the e-pawn, (3) knight on d2 is ready to reroute to g4 or e3 after e5, (4) the Bg2 is not blocked by the e-pawn. A good rule of thumb: e5 should come between moves 10 and 14, never before move 9 and rarely after move 16. Study Fischer's KIA games, especially his famous win against Myagmarsuren (1967), for the ideal e5 timing.
#pawn-breaks#timing#e5-advance
Your ability to convert kingside space into attacks peaks in the Yugoslav formation
white

Kingside Space Advantage Exploited Best in Yugoslav Setup

What this means
In your 17 Yugoslav Setup games (characterized by Nf3, g3, Bg2, O-O, d3, Nbd2, e4, and eventually h4-h5), you achieve a kingside space advantage in 14 of 17 games by move 15. Your average space differential on the kingside (measured by pawn advancement) is +1.4 ranks, meaning your kingside pawns are significantly further advanced than Black's defensive pawns. This space translates into concrete attacking chances: you open the h-file with hxg6 in 8 of your wins, and your Bg2 + Qe2 + Re1 battery becomes devastating once the h-file is open. Game #88 is your masterpiece: after h4-h5-hxg6, you tripled on the h-file with Qh2, Rh1, Reh1 and delivered checkmate on h7 on move 27.
How to improve
Your Yugoslav Setup is your KIA signature weapon — continue refining it. The key improvements: (1) Time h4 correctly — it should come after your pieces are fully mobilized but before Black completes queenside counterplay. (2) After h5, be patient: do not rush hxg6 unless the recapture leaves a genuine weakness. Sometimes maintaining the h5 pawn as a space-gaining wedge is stronger than opening the file immediately. (3) Study the ...Nh5 defense that some opponents play to block your h-pawn — the counter is g4 driving the knight away, followed by h5 with even more force.
#kingside#space-advantage#strengths
Your knight maneuver Nbd2-f1-e3/g4 takes too long when Black plays a French-style setup
white
High Impact

Piece Regrouping Stalls in 50% of Anti-French Games

What this means
In your 16 Anti-French Formation games (where Black plays ...e6, ...d5, ...Nf6, ...Be7 in a French-like structure), the critical knight regrouping maneuver (Nbd2-f1-e3 or Nbd2-f1-h2-g4) takes you an average of 5.3 moves to complete. In 8 of these games, Black launches a queenside counter-attack with ...c5, ...b5, ...a5 before your knight regrouping finishes, and your win rate when outpaced on the queenside is just 25% (2 wins, 5 losses, 1 draw). Game #234 illustrates the problem: your knight went Nbd2 (move 7), Nf1 (move 10, delayed by Re1), Ne3 (move 13), and by then Black already had ...c5-c4 locking up the queenside with an initiative. The 3-move gap between Nbd2 and the knight's arrival caused the tempo loss.
How to improve
Against French-style setups, accelerate the knight regrouping by playing Nbd2-Nf1 on consecutive moves without interruption. The rook lift to e1 can wait until after the knight reaches its destination. Consider the alternative route Nbd2-f1-h2-g4 instead of f1-e3, as the g4 knight directly pressures f6 and supports both e5 and h5 advances. If Black's queenside play is too fast, consider switching to a prophylactic approach: play a4 early to slow down ...b5, buying time for your knight maneuver to complete. The Anti-French KIA is a race between your kingside attack and Black's queenside expansion — every tempo counts.
#piece-regrouping#knights#tempo

Top Variations

1
Yugoslav Setup
17 games
2
Anti-French Formation
16 games
3
Classical Kingside Attack
15 games

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What we analyze in your King's Indian Attack games

Your e4-e5 pawn break timing

Your kingside attacking success

Your flexible piece placement

Your system understanding

Learn This Opening

Play through the main line move by move

1.knight to f3 (Nf3) pawn to d5 (d5)

白はナイトを展開し、中央をコントロールしながら柔軟なアプローチを維持します。

Play knight to f3 (Nf3)
Drag a piece or tap to move
1.Nf3d52.g3Nf63.Bg2c54.O-ONc65.d3e66.Nbd2Be77.e4

Key Positions to Know

Critical concepts every King's Indian Attack player should understand

The Universal Setup

White plays Nf3, g3, Bg2, O-O, d3, and Nbd2 — a setup that works against virtually any Black defense. The KIA is a "system" opening: White plays the same moves regardless of Black's response, making it incredibly easy to prepare and practically dangerous.

The e4-e5 Central Push

White's main plan is to push e4 and then e5, gaining space and cramping Black's position. The e5 advance opens the diagonal for the g2 bishop, creates a kingside space advantage, and sets the stage for a direct attack on Black's king.

The Kingside Pawn Storm

After e5 locks the center, White can launch a kingside attack with f4, Qe1-h4, and Nf3-h4-f5. The attack practically plays itself — pieces flow to the kingside while the g2 bishop provides long-range support. This plan has claimed countless victims at the club level.

Strategic Plans

♔
White's Plans

  • •Nf3、g3、Bg2、O-O、d3、Nbd2のセットアップを完了する
  • •e4をプレイして中央のスペースを獲得する
  • •黒がキングサイドにキャスリングした場合、ポーンストーム（h4-h5）で攻撃する
  • •e5と突いて黒の陣形を窮屈にし、ナイトをf1からh2、g4へと移動させる
  • •中央が閉じた後、キングサイドでの総攻撃を仕掛ける

♚
Black's Plans

  • •中央のスペースを支配する（d5、c5など）
  • •クイーンサイドで反撃を仕掛ける（b5-b4など）
  • •白のキングサイド攻撃に対して堅固な防御を構築する
  • •白のe4やe5のブレイクに適切に対応する
  • •白の攻撃が届く前にクイーンサイドでブレイクスルーを果たす

Key Variations

Explore the most important branches and transpositions in the King's Indian Attack.

Classical KIA

1.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.O-O Be7 5.d3 O-O 6.Nbd2 c5 7.e4 Nc6 8.Re1

黒がe6とd5をプレイする場合、白はe4を突き、キングサイドの攻撃の準備をします。

French Structure

1.e4 e6 2.d3 d5 3.Nd2 Nf6 4.Ngf3 c5 5.g3 Nc6 6.Bg2 Be7 7.O-O

黒がシシリアン・ディフェンスのような構造をとる場合、白は中央で反撃するか、キングサイドに焦点を当てます。

KIA vs Sicilian

1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.g3 g6 5.Bg2 Bg7 6.O-O Nge7 7.Re1

黒がカロ・カンのような構造（c6とd5）をとる場合、白はしばしばd3とNbd2でソリッドに構え、タイミングを見計らってe4を突きます。

Botvinnik System

1.Nf3 Nf6 2.g3 d5 3.Bg2 c6 4.O-O Bg4 5.d3 Nbd7 6.Nbd2 e6 7.e4 dxe4 8.dxe4 e5

黒が初期にg6とBg7でフィアンケットする場合、非対称で戦略的な戦いになり、白は中央やクイーンサイドでプレイすることが多くなります。

Opening Statistics

Original research from 1,018 real amateur games — data you won't find anywhere else.

Avg. Game Length
—awaiting data
Underdog Wins
—awaiting data
Quick Finishes
—awaiting data
Endgame Reach
—awaiting data
White's Edge
+1.7%
Favors BlackEqualFavors White

At 1200-1400

📊White's edge is +1.7% — a slight advantage for White.

How This Opening Changes as You Improve

RatingGamesWhite's Edge
800-1000184
+7.0%51 /0 /44
1000-1200154
+1.3%49 /0 /48
1200-1400182
+1.7%50 /0 /48
1400-1600213
+3.3%50 /0 /47
1600-1800285
+10.9%54 /0 /43

Based on 1,018 games · Updated March 2026

Why Play the King's Indian Attack?

普遍的なシステム

黒のほぼすべての防御に対して使用できるため、オープニング理論の学習を大幅に減らすことができます。

強力なキングサイド攻撃

一旦陣形が整えば、白はしばしば致命的なキングサイドの攻撃を仕掛けることができます。

理論的負担の軽減

相手の手に対して特定の理論的なラインを大量に覚えるのではなく、アイデアと計画の理解に焦点を当てることができます。

戦略的な奥深さ

最初は静かに見えますが、強力なキングサイドの攻撃や複雑なポジショナルな駆け引きに発展する可能性を秘めています。

Common Traps

Watch out for these dangerous tactical pitfalls

Tactical e5 Break

1.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.O-O Be7 5.d3 O-O 6.Nbd2 c5 7.e4 Nc6 8.e5 Nd7 9.Re1 b5? 10.Nf1! Bb7 11.Bf4 Qc7 12.h4!

黒が中央を拡張しすぎると、白のフィアンケット・ビショップとナイトの連携によってピースを失う可能性があります。

Central Breakthrough

1.Nf3 Nf6 2.g3 d5 3.Bg2 c6 4.O-O Bg4 5.d3 Nbd7 6.Nbd2 e6 7.e4 dxe4 8.dxe4 e5 9.h3 Bh5? 10.g4 Bg6 11.Nh4

黒が白のキングサイドの意図を無視してクイーンサイドに展開を集中させると、突然のe5のプッシュから致命的なキングサイド攻撃に陥ります。

Beginner Tips

💡

セットアップの完了を急がず、相手の手に応じた柔軟な対応を心がける

💡

キングサイドの攻撃のタイミングを慎重に見極める

💡

中央が閉じるまでキングサイドのポーンストームを急がない

💡

黒のクイーンサイドからの反撃（c5, b5）の速度に注意を払う

💡

e4のブレイクを準備し、適切なタイミングで実行する

Common King's Indian Attack patterns we detect

We automatically check if you fall for these specific traps.

About the King's Indian Attack

The King's Indian Attack (1.Nf3 d5 2.g3 Nf6 3.Bg2 c5 4.O-O) is a flexible system where White fianchettoes the kingside bishop and aims for kingside expansion.

We analyze your break timing, attacking effectiveness, and strategic understanding in this flexible system.

openings.page.sections.keyThemes

Universal systemFlexible developmentKingside fianchettoCentral expansion with e4Attacking potential

openings.page.sections.notablePlayers

Bobby FischerBoris SpasskyTigran Petrosian

Frequently Asked Questions

Common questions about King's Indian Attack analysis

The King's Indian Attack is a flexible system where White fianchettoes the king's bishop and plays d3, Nd2, O-O, and e4, creating a strong pawn center while keeping the position solid. Unlike most 1.e4 or 1.d4 openings, it can be played against almost any Black setup — French, Sicilian, Caro-Kann, or Queen's Pawn defenses. The system was a favorite weapon of Bobby Fischer, who used it to defeat World Champions and top contenders by outplaying opponents in rich middlegames.
White's typical plan runs: 1.Nf3, 2.g3, 3.Bg2, 4.O-O, 5.d3, 6.Nbd2, and 7.e4. Once e4 is established, White aims for e5 to gain space, or executes the kingside attack with f4-f5, Nf1-g3, and a direct assault. The key strategic motif is the Nb1-d2-f1-g3 knight maneuver — the knight circles to g3 where it supports both f5 and h5 advances. Against Black players who castle kingside, the KIA's attacking potential is particularly dangerous.
Bobby Fischer made the King's Indian Attack famous by using it regularly in tournaments and match play, crushing world-class opponents. His 1965 win against Robert Byrne using the KIA is considered a masterpiece — Fischer launched a devastating kingside attack from the KIA setup, sacrificing a queen and advancing pawns to deliver a stunning mating attack. Fischer valued the KIA because it avoided heavy opening theory while offering rich middlegames where his superior understanding prevailed.
The most common error is castling kingside prematurely before understanding White's attacking intentions. After 7.e4, if Black castles kingside with the pawns on e6 and d5, White launches the standard KIA attack: 8.e5 Ne8 9.Re1 Nc7 10.Nf1 planning Ng3-h5 and the f4-f5 advance. Black's king is often caught in the center of an opening storm. The correct defensive plan is to delay castling, challenge with ...b5 or ...c5, and keep the queenside pressure alive to slow White's kingside advance.

Famous Games

FischervsMyagmarsuren
Sousse Interzonal 19671-0

ボビー・フィッシャーがキングズ・インディアン・アタックを使用して見事なキングサイドの攻撃を成功させた古典的な名局です。

FischervsBenko
US Championship 19631-0

フィッシャーが再びKIAを用い、フレンチ構造に対してどのように強力な攻撃を構築するかを示した模範的なゲーム。

SpasskyvsPetrosian
World Championship 19691-0

カスパロフがKIAの戦略的な深さを示し、強力な相手に対してポジショナルな優位性を徐々に築き上げたゲーム。

Learning Resources

video

キングズ・インディアン・アタックを極める

video

How to Play the King's Indian Attack - GothamChess

book

The King's Indian Attack by Gary Lane

course

King's Indian Attack Opening Guide - Chess.com

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