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Queen's Indian Defense

1.d4 Nf6 2.c4 e6 3.Nf3 b6 · E12–E19

Part of Indian Defense

Starting positionWhite to move

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Bishop pressure needs a clear diagonal

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The idea

Black fianchettoes the queen's bishop and challenges e4 along the long diagonal — solid, principled and a lifetime's work to master.

Main line: 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 d5

What White wants

  • Take the centre with Nc3, and play for e4 or d5
  • Fianchetto and fight for the long diagonal
  • Use the extra space to squeeze in the middlegame

What Black wants

  • Control e4 with ...Bb7 and ...d5 or ...Ne4
  • Trade pieces and neutralise White's space
  • Keep the position flexible with ...Ba6 or ...Ne4 ideas

Key idea

Understand this and the moves stop needing to be memorised.

Bishop pressure needs a clear diagonal

The b7 and g2 bishops share the a8–h1 diagonal, but White's knight on f3 blocks the g2 bishop. Black's bishop influences e4 until central pawns obstruct it. Moving or exchanging the blockers changes the pressure; a fianchetto alone does not guarantee control.

Common mistake

Assuming the fianchetto controls e4 by itself. If ...d5 and ...exd5 block the bishop's diagonal, use the knights and central pawns to contest e4; do not leave White free to expand while making more flank moves.

Representative position

The position this opening is aiming at. Copy the FEN, or open it in the analysis board and let the engine tell you what it is worth.

rn1q1rk1/pbp1bppp/1p2pn2/3p4/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - 0 8

Analyze this position

Variations

1 line branching from here.

Related openings

Indian Defense1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O · A45–A79, D70–D99, E00–E99The family name for every defence where Black develops the knight to f6 first and decides later whether the centre will be blocked, undermined or handed over.Queen's Indian: Petrosian Variation1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 · E12White spends a tempo on a3 before developing Nc3. This rules out a bishop pin on b4, allowing White to build the centre without accepting Nimzo-Indian-style doubled pawns.Nimzo-Indian Defense1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O · E20–E59Black pins the knight on c3 and fights for e4 with pieces rather than pawns — one of the most respected defences in all of chess.Catalan Opening1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.g3 Be7 · E01–E09White combines the Queen's Gambit with a kingside fianchetto, aiming the bishop down the long diagonal at Black's queenside.Bogo-Indian Defense1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7 · E11Black checks on b4 with the bishop, forcing White to block and then trading it off — an unambitious but very hard-to-beat system.King's Indian Defense1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 · E60–E99Black lets White build a huge centre and then attacks it with a kingside pawn storm — the most combative defence to 1.d4 in existence.