AI Chess TeacherControl the centre from the side before occupying it.
1. d4 Nf6 2. c4 e6 3. Nf3 b6
Choose the Queen's Indian if you like piece-based central control and manoeuvring with a compact structure. It suits players willing to accept some space disadvantage while seeking useful exchanges. White's g3, a3 and Nc3 setups ask different questions, so learn one coherent development arrangement before trying to combine all the bishop moves.
White wants to develop Bg2, but first must account for the bishop's pressure along a6–c4. A pawn move can reinforce that target.
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6
Position notation (FEN)
rn1qkb1r/p1pp1ppp/bp2pn2/8/2PP4/5NP1/PP2PP1P/RNBQKB1R w KQkq - 1 5
Three ideas to remember
Bb7 adds pressure to the central light squares
From b7 the bishop looks toward e4 and farther along the diagonal. White's d4-pawn and later central changes can block that scope. Black must coordinate the knight and possible pawn breaks with the bishop instead of relying on its diagonal alone. A fianchetto is a placement, not a complete plan.
Ba6 attacks a different target
Against g3, Black can develop to a6 and attack the c4-pawn. White may answer b3, changing the queenside structure while Black decides where the bishop belongs next. This is distinct from immediate Bb7 pressure on e4. Identify the target before choosing a routine fianchetto response.
a3 spends a tempo for freedom
White's a3 in the Petrosian setup prepares Nc3 while discouraging a bishop pin on b4. That can help White build a mobile centre. The pawn move is not development by itself, so White should use the freedom it buys rather than spend several more tempi on unrelated preparation.
Turn the structure into a plan
White's plan
White develops the pieces around the chosen setup and prepares to contest e4 without exposing the centre to easy counterplay. In the g3 line, protect c4 when ...Ba6 attacks it and complete Bg2. With a3, use the newly available Nc3 route purposefully. If exchanging central pawns, reassess the bishop diagonal and open files before continuing the original plan.
Black's plan
Black develops the queenside bishop to match White's arrangement, completes kingside development and uses ...d5 or ...c5 when appropriate. Useful minor-piece exchanges can ease the space constraint. Do not make all the familiar pawn moves at once: every break affects the b7-bishop and White's centre. Check tactical pins before moving the f6-knight.
Common mistakes
Ignoring the c4-pawn after the bishop chooses a6
The Fianchetto Nimzowitsch introduction below includes ...Ba6, which attacks c4. White's b3 addresses that pressure before Bg2. A routine bishop development move that ignores c4 would leave a real material question unresolved. Read the bishop's diagonal instead of treating every ...b6 setup as identical.
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb7 6. Bg2 Bb4+
Expecting a queenside fianchetto to guarantee safety
Black has a sound development framework, but can still suffer from passive pieces or careless central breaks. If White obtains e4 with support, Black must respond actively. The opening's solid reputation does not eliminate calculation or make every exchange harmless.
Representative variations
These are introductory sequences from existing training lines, not a complete repertoire or a promise of a forced result.
Fianchetto Nimzowitsch Main Line
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb7 6. Bg2 Bb4+
Fianchetto Nimzowitsch Main Line uses ...Ba6 before returning to b7 after b3. It demonstrates pressure on c4 followed by a new bishop deployment.
Petrosian Variation Classical
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5
Petrosian Variation Classical invests a3, then develops Nc3 while Black plays ...d5. A central exchange activates Black's knight on d5.
Kasparov Variation Main Line
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. Bg5 Bb4 6. e3 h6
Kasparov Variation develops Nc3 directly and uses Bg5. Black's ...Bb4 creates a different piece-contact problem from the a3 setup.
A practical exercise
White to move in the diagram above
Find the catalogue's pawn defense of c4. Which bishop development can White prepare next?
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6
Reveal the answer and explanation
5.b3 defends c4 against the a6-bishop. White can follow with Bg2 when the position permits, while Black may choose a new bishop square. This is a concrete response to ...Ba6, not a universal requirement whenever Black plays ...b6.
Frequently asked questions
Is this the same as the King's Indian?
No. The Queen's Indian develops the c8-bishop on the queenside and begins with ...e6. The King's Indian uses ...g6 and ...Bg7, with different central breaks and attacking patterns.
Why does White's Nf3 matter?
It chooses a move order that postpones Nc3 and its possible ...Bb4 pin. Later Nc3 can still transpose into related Indian positions, so keep track of the pieces rather than the opening label alone.
Understand it. Then practise it.
Compare ...Ba6 with ...Bb7 and name the immediate target of each bishop placement. Practise b3 against the first, then inspect e4 control in the second. Train the a3 and direct-Nc3 branches separately so the purpose of White's extra pawn tempo stays clear.
Practice this openingChoose a line in the catalogue. Existing free and Premium access rules apply.