Playing the King's Indian Attack: Double Fianchetto as Black

ECO A07 67,280 games Stockfish +0.27

After 1.Nf3 d5 2.g3 g6, White has steered the game into the King's Indian Attack: Double Fianchetto. Your job as Black is simple but not easy: meet the kingside fianchetto with good development, keep your position solid, and be ready to answer White’s most natural follow-up. The drill below puts you in the exact position, so you can practise the right reaction instead of guessing over the board. This is a good opening to learn by pattern, because the plans are clear even when the position stays flexible.

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What the engine wants you to do

Stockfish rates this +0.27, a small edge for White. That means you are slightly worse here. The engine’s best move is Bg2, and the idea continues with Bg2 Bg7 d4 Nf6. In other words, Black should stay disciplined: develop smoothly, mirror White’s kingside setup, and avoid creating weaknesses with random pawn pushes. The position is not lost, but White has the easier structure to play for the moment, so your moves need to be purposeful.

What White usually plays

In this exact position, the most-played continuation is Bg2, with 60,240 games and White scoring 49.2%. That is the most important move to expect, because it fits the opening’s main plan of completing the kingside fianchetto. Other common tries are d4 in 3,009 games with White scoring 48.4%, d3 in 1,928 games with White scoring 45.7%, and c4 in 738 games with White scoring 50.0%. You do not need to know a maze of theory here — you need to recognise White’s setup and answer it calmly.

The position you are fighting for

Across 67,280 games at this exact position, White wins 48.9%, draws 4.6%, and Black wins 46.5%. Those numbers say this is a playable position for Black, but White has slightly better results overall. That makes your practical goal clear: keep the game balanced, finish development, and avoid drifting into a passive middlegame. If you get the pieces out efficiently, you can still reach a normal game where understanding matters more than memorisation.

A mistake to punish

One known mistake here is b3. It is an inaccuracy and loses about 0.7 pawns; the better move was d4. That is useful because it shows White can waste time even in a flexible opening. When White chooses a slower queenside idea instead of completing the central plan, you should welcome it and keep developing without helping White recover the tempo. The opening rewards patience more than aggression.

Results across 67,280 Lichess games

48.9%
4.6%
46.5%
■ White 48.9% ■ Draw 4.6% ■ Black 46.5%
Most-played continuationGamesWhite wins
Bg260,24049.2%
d43,00948.4%
d31,92845.7%
c473850.0%
c334344.9%
b333542.7%

Frequently asked questions

What is the main idea of the King's Indian Attack: Double Fianchetto for Black?

Your main job is to answer White’s kingside fianchetto with sound development and a stable pawn structure. In the exact position after 1.Nf3 d5 2.g3 g6, the engine prefers **Bg2** as White’s most natural continuation, so you should expect White to complete the fianchetto and then build from there.

Is this opening good for Black?

It is playable, but the evaluation is not in your favour. Stockfish rates the position +0.27, a small edge for White, and the database also shows White scoring slightly better overall at this exact position. So you should aim for a solid, practical game rather than a sharp fight for an immediate advantage.

What should I expect White to play most often?

The clear favourite is **Bg2**: it appears in **60,240 games** and gives White a **49.2%** score. Other common choices are **d4**, **d3**, **c4**, **c3**, and **b3**. The key is to recognise the setup quickly and continue developing naturally.

What mistake should I watch for?

The listed inaccuracy is **b3**. It loses about **0.7 pawns**, and the better move was **d4**. If White plays it, you can be pleased: White has slowed down, and you should keep improving your pieces and central control.

How many games feature the King's Indian Attack: Double Fianchetto?

Over 67K Lichess games have reached the King's Indian Attack: Double Fianchetto position. White wins 48.9%, Black wins 46.5%, with 4.6% draws — based on real rated games.