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Queen's Indian Defense

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You play Black · 45 variations

Mixed practice

The machine picks a different variation every time.

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10 positions: find the next theory move in each. No take-backs, no hints.

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Opponent strength after the book

Opponent strength after the book

Stockfish 19 · UCI_Elo

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Main variations · 23

Other variations · 22

What is the Queen's Indian Defense?

The Queen's Indian Defense arises after 1.d4 Nf6 2.c4 e6 3.Nf3 b6. When White avoids the Nimzo-Indian by playing Nf3 instead of Nc3, Black fianchettoes the queen's bishop to fight for the light squares in the centre, above all e4. It is a solid, positional opening with a reputation for reliability rather than sharpness, and it is the natural partner of the Nimzo-Indian in many repertoires against 1.d4.

Main ideas and plans

Your pieces control the centre from a distance: the bishop on b7 or a6, the knight on f6 and sometimes a knight jump to e4 fight for e4 and d5, and you free your game later with ...d5 or ...c5. The main line is the Fianchetto Variation, 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3, in which White opposes your bishop with his own on g2. The modern Nimzowitsch Variation, 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.b3 Bb4+ 6.Bd2 Be7, attacks c4 at once, and after the check White's pieces stand slightly awkwardly. The older Classical Variation with ...Bb7, ...Be7, castling and ...Ne4 aims for exchanges and simple equality.

The Kasparov-Petrosian Variation, 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3, prevents ...Bb4 and prepares Nc3 and a big centre. After 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.cxd5 Nxd5 you play in classical style, while ...c5 and ...d6 lead to Hedgehog structures in which you wait behind a compact pawn chain and strike later with ...b5 or ...d5. White can also choose quieter moves such as e3, or Nc3, which allows ...Bb4 positions close to the Nimzo-Indian.

Who is it for?

The Queen's Indian suits patient, positional players who prefer clear plans and sound structures to sharp tactical theory, and it pairs naturally with the Nimzo-Indian. Its downside is that it can be passive: if you only aim for exchanges, a strong opponent can keep a small, lasting edge thanks to his extra space. First learn the fight for e4, the ...Ba6 idea against the fianchetto and the Hedgehog structure against the a3 system.