King's Indian Defense: Orthodox Variation, Classical System

What King's Indian Defense: Orthodox Variation, Classical System puts on the board

Material is level, with black to move.

White has central pawns on e4 and d5; Black has central pawns on e5.

White has castled kingside; Black has castled kingside.

What White is trying to build

Use the broad pawn centre to gain queenside space or break with e5.

Meet a kingside attack with concrete central or queenside play.

How Black challenges it

Attack the centre with …e5 or …c5, then play on the wing the locked centre points toward.

Keep the dark-squared bishop active on the long diagonal.

The tactical pattern to recognise

…f5–f4 can open lines near the white king.

A locked centre often creates opposite-wing races rather than quiet manoeuvring.

What to check before committing

Starting the wing race before the centre is fixed.

Trading the dark-squared bishop without a concrete gain.

Choose the next book move

Preview a move to see the resulting position and the idea behind it. Select it to continue on the same board.