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King's Indian Defence: Ideas, Plans and Main Lines

How the King's Indian works, why Black hands White the centre, the attack with ...f5, and what to do against the Classical, the Sämisch, the Four Pawns and the fianchetto.

By AcademiaTal3 min read

The King's Indian is the defence of a player who wants a fight. Against 1.d4, Black does not contest the centre straight away: Black hands it over, develops quickly, castles, and only then attacks that centre —or lets it close and goes straight for the king—.

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6

Fischer and Kasparov turned it into an attacking weapon with Black, and it still produces some of the most spectacular games in chess. At club level it has one huge advantage: Black knows what to do in almost every variation.

The idea in one sentence

Black lets White build a big centre in order to hit it later with ...e5 or ...c5; if the centre closes, Black attacks the king with ...f5.

What each side wants

Black:

  • The ...e5 break, or ...c5, to fight for the centre.
  • With the centre closed, the kingside attack: the f6 knight moves to e8 or h5, followed by ...f5, ...f4 and ...g5.
  • The g7 bishop, which may look shut in but comes back to life when the centre opens.

White:

  • Using the space: the big centre is an advantage as long as it holds.
  • With the centre closed, attacking on the queenside with b4 and c5, which is where White's advantage lies.
  • Stopping Black's attack before it arrives.

The main lines

Classical systems: the ...f5 attack

After 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 the centre locks and the race begins: Black attacks the king with ...f5 while White advances on the queenside. It is the classic image of the King's Indian.

Exchange Variation and Four Pawns Attack

In the Exchange Variation (7.dxe5 dxe5 8.Qxd8) White trades queens looking for a quiet game; Black is comfortable as long as the structure is understood. In the Four Pawns Attack (5.f4) it is the other way round: White builds the biggest centre possible and Black has to hit it at once.

Sämisch System: 5.f3

White reinforces e4, plays Be3 and Qd2, and often castles long to throw the kingside pawns forward. It is one of the most dangerous systems, and it forces Black to find quick counterplay in the centre or on the queenside.

Petrosian Variation: 7.d5

White closes the centre immediately, before Black can develop the queen's knight, and often follows with Bg5 to harass the f6 knight. It changes the rhythm of the usual race.

Fianchetto: g3

White develops the bishop on g2 and plays more calmly. Black has to find other plans, because the ...f5 attack loses strength against a well-defended king.

Typical mistakes

  • Attacking without closing the centre. The ...f5 attack works when the centre is blocked; with an open centre, Black just weakens itself.
  • Letting White get there first. In a race on opposite wings, one lost tempo is the game.
  • As White, defending on the kingside instead of attacking on the queenside. The best defence against ...f5 is usually to advance on the other side.
  • Exchanging the g7 bishop. It is the piece that defends Black's king and drives the counterplay.

Who is the King's Indian for?

For players who want to win with Black against 1.d4 and do not mind the risk. It produces unbalanced games with attacks on opposite wings, and it rewards initiative. If you want something more solid against 1.d4, the Nimzo-Indian is the classical choice; if you want another dynamic defence with more piece play, have a look at the Grünfeld.

How to study it

Start with the classical systems, because that is where the whole idea is learned: the closed centre and the race. Then, one by one, the systems you face at your level. Look at complete games: the King's Indian is understood in the middlegame, not in the opening.

The course King's Indian Defense: systems, plans and main lines, with grandmasters Andrés Rodríguez Vila and Diego Flores, covers in six lessons the classical systems with ...f5, the Exchange Variation and the Four Pawns, the Sämisch, kingside expansions, the Petrosian and the fianchetto lines.

Frequently asked questions

What is the King's Indian Defence?
It is a defence against `1.d4` in which Black develops the king's bishop on `g7` and lets White build a big centre with `c4`, `d4` and `e4`, to attack it later with `...e5` or `...c5`. The typical position arises after `1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6`.
Why is the King's Indian so aggressive?
Because in many of its lines the centre locks and each side attacks on a wing: Black goes for White's king with `...f5`, and White pushes `c5` on the queenside. It is a race won by whoever gets there first, and that produces very decisive games.
What is the Sämisch Variation of the King's Indian?
It is the system with `5.f3`: White reinforces the `e4` pawn, prepares `Be3` and `Qd2`, and often castles long to attack with `g4` and `h4`. It is one of the most dangerous answers to the King's Indian.

Courses that cover this

If you want to put this into practice with structured material:

All levels

King's Indian Defense: systems, plans and main lines

A complete study of the King's Indian Defense: classical systems, Exchange Variation, Four Pawns, Sämisch, Petrosian, and fianchetto lines.

ARDFBy GM Andrés Rodríguez Vila and GM Diego Flores

6 lessons9 h6 Videos175 PGN games
USD 25.00
View details

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