Old Main Line

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.0-0 0-0 7.b3

With 7.b3, White commits to queenside development with Bb2 and long-term pressure on the center. It's a calm approach that often leads to maneuvering positions where small improvements and good structures matter.

ECO Code

E12-E19

Difficulty

Beginner-Intermediate

Style

Positional/Quiet

Main Idea

Develop Bb2

Typical Plans

White: Bb2 and Central Pressure

Bb2 and e3/e4

White develops the bishop and chooses between a solid center or more direct e4 expansion.

Black: Counterplay with ...d5 or ...c5

Central break

Black still aims to challenge the center and activate pieces before White consolidates.

Maneuvering Battles

Small improvements

These lines often become a test of plans and piece placement rather than tactics.

Quiet Queen's Indian Plan

If you prefer steady pressure and clear development, the b3 plan is a reliable option.

Back to Queen's Indian Defense Spassky System