Skip to content
Chessblood

Opening guide · ECO E60–E99

King's Indian Defense

Black fianchettoes with ...Nf6, ...g6, ...Bg7 and ...d6, lets White build a big center and then attacks it with ...e5 or ...c5. The ultimate counterattacking defense to 1.d4.
Chosen by
Black
ECO
E60–E99
Lines in this guide
8
Updated

The King's Indian Defense arises after 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6. Black deliberately allows White a broad pawn center and plans to undermine it from a distance: ...e5 is the main break, ...c5 the alternative. The fianchettoed bishop on g7 is Black's most important piece, and the resulting positions are among the most double-edged in chess.

In the Classical Variation (5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7) the center locks and each side attacks on the wing where it has more space: White plays c5 and queenside pressure, Black throws the kingside pawns forward with ...f5, ...f4 and ...g5-g4 and aims for mate. White's alternatives include the Sämisch (5.f3), the Four Pawns Attack (5.f4), the Fianchetto (g3 and Bg2) and the Averbakh (Be2 and Bg5), each requiring a different reaction from Black.

The King's Indian demands courage and calculation; it was the weapon of Bronstein, Fischer and Kasparov and still produces some of the most spectacular games at every level. The main line below follows the Classical system to the moment the central tension is at its height.

The main line

Every move below is replayed by chess.js when the site is built, so the diagram is always the real position.
Position after 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5
King's Indian Defense main line
Move#WhiteBlack
1.d4Nf6
2.c4g6
3.Nc3Bg7
4.e4d6
5.Nf3O-O
6.Be2e5

6...e5 is the thematic strike. White can release the tension with 7.dxe5 dxe5 8.Qxd8 Rxd8 (an equal endgame in which Black's activity compensates for the weak d5-square), close the center with 7.d5 (Petrosian Variation), or keep it with 7.O-O Nc6 8.d5 Ne7, the Mar del Plata main line where White's queenside attack (c5, Nd3, b4) races Black's kingside storm (…f5, ...f4, ...g5).

Drill the main line Analyse this position

Plans for both sides

Move orders are easy to look up; plans are what you need once the opponent leaves the book.

Plans for White

  • Queenside expansion with c5 (after d5 has closed the center), Nd3, b4 and Rc1, aiming at c7 and the d6-pawn.
  • Open the center at the right moment with exf5 or f3 and Nd3 to blunt Black's kingside attack and exploit the d5-square.
  • In the Fianchetto Variation, use the g2-bishop to hold the kingside and play for e4-e5 or b4 and c5 on the queenside.
  • In the Sämisch, castle long and storm the kingside with g4 and h4 while the f3-pawn keeps e4 secure.

Plans for Black

  • Kingside attack: ...f5, ...f4, ...g5, ...Nf6-h5 or -d7, ...Rf7 and ...g4 to open the g-file and mate.
  • Counterplay in the center with ...c5 (against d5) or ...c6 and ...d5 when the center is still fluid.
  • Against queenside pressure, play ...a5 to slow b4 and route a knight to c5 via a6 or d7.
  • In the Exchange and Fianchetto lines, occupy d4 with a knight and use the half-open d-file and the g7-bishop's long diagonal.

Key variations

7 lines worth knowing, each with the position it leads to.

Strengths and weaknesses

Why play it

  • Black plays for a win: the closed center and opposite-wing attacks create decisive results in both directions.
  • The g7-bishop and the ...e5 and ...c5 breaks give Black a clear, consistent plan.
  • The same set-up can be used against 1.d4, 1.c4 and 1.Nf3, which simplifies repertoire building.
  • Many of the lines reward understanding of typical attacking patterns more than rote memorization.

What it costs

  • White gets a large space advantage and clear queenside play; if Black's attack stalls, the endgames are often bad for Black.
  • The Sämisch, Four Pawns and Averbakh each require a separate response; the repertoire is wide.
  • Black's kingside pawn storm weakens the king, and well-timed central breaks by White (e.g. c5 and Nd5 or exf5) can turn the tables quickly.
  • The Exchange Variation and the Fianchetto reduce Black's attacking chances and require patience.

A trap to know

Short tactical sequences that decide games at club level. Learn them so you never fall for them, not to hope for them.

Advice if you are new to the King's Indian Defense

  1. Do not grab space you cannot hold as White, and do not wait as Black: the King's Indian punishes both passivity and over-extension.
  2. Learn the Mar del Plata attacking pattern (…f5, …f4, …g5, …Rf7-g7, …g4) and the defensive pattern against it (c5, Nb5, Nd3 and a rook on c1) before anything else.
  3. Against the Sämisch, choose one system (…c5 gambit or …e5 and …Nh5) and stick to it; the structures are different enough that mixing them causes confusion.
  4. Trade queens only when your pieces are active; the Exchange Variation is fine for Black as long as you keep the initiative with ...Nc6 and ...Nd4 ideas.

When you have played a few games with it, run them through the game review. The report names the opening, marks the moves that were still book, and shows where you left the line and what it cost.

King's Indian Defense questions

Is the King's Indian Defense good for club players?
It is a great choice for players who like to attack and are willing to accept risk. Club-level opponents rarely know the precise queenside plans that make the King's Indian difficult at grandmaster level, so Black's kingside attack often arrives first. You do need to know the main systems (Classical, Sämisch, Four Pawns, Fianchetto) well enough to choose the right set-up.
What is the Mar del Plata variation?
The main line of the Classical King's Indian: 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7. It is named after the 1953 tournament in Argentina where it was played repeatedly. White attacks on the queenside with c5 while Black attacks the king with ...f5 and ...g5-g4.
How should White play against the King's Indian without heavy theory?
The Fianchetto Variation (g3 and Bg2) and the Exchange Variation (dxe5 and Qxd8) both keep the position calm and reduce Black's attacking chances. Neither promises much, but both are easy to understand and avoid the most dangerous Black ideas.
Is the King's Indian still played at the top level?
Less often than in Kasparov's era, because White's queenside play in the Mar del Plata and the solid Fianchetto systems are considered slightly unpleasant for Black. It remains a frequent surprise weapon, and its ideas about pawn breaks and opposite-wing attacks are essential knowledge for every player.

Related openings