King's Indian Defense: Orthodox Variation: Plans and Traps

Key ideas for both sides

White

Castle short and meet ...e5 and ...Nc6 with d5, then b4 to start queenside play.
After ...Na6, the engine likes dxe5 and Qc2, aiming the queen toward b4 and a4.
Against ...c5, d5 and h3 give a Benoni structure with White's extra central space.
Prepare c5 and a strong knight on d5 or c4 while Black busies the kingside.

Black

Play ...e5, the top engine move, and after d5 send the knight via e7 to the kingside.
Prepare ...f5 by moving the f6 knight to e8, d7 or h5 first.
Use ...a5 against b4 to slow White's queenside pawns and keep the c5 square for a knight.
...Na6 is another way to support ...e5 while keeping the c8 bishop free.

Plans and pawn structure

This is the classic race. After ...e5, d5 and ...Ne7, White attacks on the queenside with b4, c5 and pressure on the c-file. Black answers with ...f5, ...f4 and ...g5, throwing pawns at White's king. The locked center means each side can commit fully to its wing. Accurate timing of b4 and c5 against ...f5 and ...g5 decides who breaks through first.

Where the engine's main line heads: Locked center: d5–e4 against d6–e5. A locked center: White's d5 and e4 against Black's d6 and e5. The game moves to the wings, where each side attacks where its pawns point.

What the engine plays from here

Stockfish 17.1 at depth 20 rates the position +0.50: a slight edge for White. Its three top choices for Black:

+0.50 6...e5 7.O-O Nc6 8.d5 Ne7 9.b4
+0.54 6...Na6 7.O-O e5 8.dxe5 dxe5 9.Qc2
+0.64 6...c5 7.d5 e6 8.h3 Re8 9.O-O

Pawns, from White's side.

How it scores on lichess

3,232 rated lichess games reached this position; White scored 54.9%.

1200–159952.5%

1600–199956.5%

2000 and up54.2%

Light: White wins. Grey: draws. Dark: Black wins. About the sample.

Where it goes next

Petrosian Variation6...e5 · 310 games
Kazakh Variation6...Na6 · rare
Orthodox Variation, Classical System, Kozul Gambit6...e5 · rare
Orthodox Variation, Positional Defense, Closed Line6...Nbd7 · rare

How to play against it

As White, castle short and lock the center with d5 at the right moment, then push b4. Do not ignore Black's kingside storm: keep pieces like Ne1 or Nd2 ready to defend. As Black, play ...e5 and prepare ...f5 rather than waiting.

Other lines with this name

The lichess opening list also files these lines under the same name, though they reach a different position: 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5; 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O; 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7 8.Re1.

Questions

What are the moves of the King's Indian Defense: Orthodox Variation?

The King's Indian Defense: Orthodox Variation starts 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2. Its ECO code is E91, E92, E94, E95.

Is the King's Indian Defense: Orthodox Variation good for White?

Stockfish 17.1 rates the position +0.50 at depth 20, which is a slight edge for White. In 3,232 lichess games from our sample, White scored 54.9%. The mainstream choice for players on both sides who want a rich, race-to-break-through middlegame.

What is the main idea of the King's Indian Defense: Orthodox Variation?

White develops calmly with Be2 and castling, then expands on the queenside. Black prepares ...e5 and after the center locks pushes ...f5 for a kingside attack.

What should Black play next?

The engine's first choice is e5, with Na6 and c5 close behind. ...e5 hits d4 and sets up the classic locked-center race after d5.

Updated October 2026. Sources and method.

King's Indian Defense: Orthodox Variation