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Queen's Indian Defense: a long-diagonal bishop that keeps watch on e4

Black plays b6 and puts the bishop on b7 to control the center from afar. One of the most solid defenses against 1. d4.

Also called：Queen's Indian Defense、Queen's Indian Defence、QID

The Queen's Indian Defense is 1. d4 Nf6 2. c4 e6 3. Nf3 b6. Black pushes b6, getting ready to put the bishop on b7, where it watches e4 from far away along the long diagonal. It's a very solid defense that rarely gets you into big trouble, and it's a great way to practice answering 1. d4 when you play chess against the computer.

Moves and position

This opening often comes about as a "switch" from the Nimzo-Indian:

  1. 1. d4 Nf6 2. c4 e6 Same as the Nimzo-Indian.
  2. 3. Nf3 White doesn't play Nc3, so the black bishop can't jump to b4 to pin the knight.
  3. 3... b6 Black controls e4 in a different way: by putting the bishop on the long diagonal.

Why e4? White wants most of all to push e4 and build a big center. With the f6 knight and the b7 bishop both watching it, White can't get it in.

What White wants

  • g3 and Bg2: White puts a bishop on the long diagonal too, facing Black's bishop head-on and cancelling out its power.
  • Nc3 and e4: When the time is right, White still wants to push e4.
  • Develop steadily: White castles first and plays slowly, usually with a little more space than Black.

What Black wants

  • The long diagonal: The b7 bishop controls e4. It's the soul of the whole opening.
  • Don't give up the center: When needed, Black fights for the center with d5 or c5 and doesn't let White settle in comfortably.
  • Castle safely: With the bishops out and the king castled, Black has very few weaknesses.

Main lines

Modern main line: 4. g3 Ba6

The black bishop goes to a6 instead to attack the c4 pawn, and White protects it with b3. Black first gives a check to bring White's bishop to d2, then drops the bishop back to e7.

Instead of b7, the black bishop goes to a6 and hits the c4 pawn directly. After White protects it with b3, Black plays Bb4+ to make White's bishop go to d2, a square it doesn't really like, then retreats. This is what strong players play most today.

Classical setup: 4. g3 Bb7

The two bishops face each other on the long diagonal, and both sides castle quickly.

The most direct setup: Black's bishop on b7 and White's on g2 cancel each other out on the same long diagonal. The game is very calm, and it comes down to who can push e4 or d5 first.

Petrosian Variation: 4. a3

White plays a3 first so the black bishop can't jump to b4, then develops Nc3 safely.

With one move, a3, White takes b4 away from Black's bishop. Now the c3 knight can't be pinned and can fully support e4. The line is named after former world champion Tigran Petrosian. Black usually blocks the center with d5.

A common trap: pushing e4 too early

In the Petrosian Variation, after White trades the c-pawn for d5, it's tempting to rush e4 to chase the black knight away:

The black knight trades off the white knight first. White recaptures with the b-pawn, and the bishop on b7 simply takes the pawn on e4.

The e4 pawn was protected by the c3 knight. Once the black knight trades it off, nobody guards e4, and the b7 bishop has been aiming at that square all along. With that one trade, White loses a pawn for nothing.

The right move is 7. Qc2 first, so the queen watches e4, then look for a chance to push it. Remember: when your opponent's bishop is on the long diagonal, check what's at the other end of it.

Who it suits

  • Black players who want a steady game: Few big swings, few weaknesses.
  • Players who like slow maneuvering: Neither side rushes to fight. It's about who places the pieces better.
  • Players who already play the Nimzo-Indian: When White avoids it with 3. Nf3, the Queen's Indian is the most natural follow-up.

It's a pair with the Nimzo-Indian Defense: if White plays 3. Nc3, play the Nimzo; if White plays 3. Nf3, play the Queen's Indian. Together they cover most of 1. d4.

FAQ

Isn't the Queen's Indian Defense too passive?

No. Its idea is "control the center, you don't have to occupy it." Black watches e4 from afar with the bishop and knight, and when the time comes Black can still strike back with c5 or d5. It's solid, but it doesn't only defend.

Why does the modern line often play 4... Ba6?

Because at that moment the c4 pawn isn't protected by any piece. The black bishop jumps to a6 to attack it directly, forcing White to protect it with b3 or something else and disturbing White's normal order of development.

Can a beginner with Black start learning here against 1. d4?

You can, but it's better to learn answering with d5 first and get used to Queen's Gambit positions. The ideas of the Queen's Indian are subtler. Once you understand "controlling the center from afar," you'll get much more out of it.

Try it yourself

Use the button below to start a game against the computer from the Queen's Indian Defense. With Black, remember to watch e4 with the b7 bishop. For other openings, go back to the openings guide. For something different, head back to the free online chess home page.

Play this opening against the computer

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