King's Indian Attack
A07 · Played as white · Beginner · White Systems
Reverse King's Indian — kingside attack with reversed colours
The main line
1.Nf3 d5 2.g3 c5 3.Bg2 Nc6 4.O-O e5 5.d3 Nf6 6.Nbd2 Be7 7.Re1 O-O 8.e4 d4 9.Nc4 Qc7
Strategic ideas
- Advance e5 to claim kingside space — this is always the primary goal before any piece manoeuvres
- Launch a kingside pawn storm with f4–f5 once e5 is securely established
- Reroute the knight via Nd2–f1–g3 to pile pressure on the e5 outpost and the kingside
- Keep the g2 bishop as a long-term weapon — it pressures c6 and controls the long diagonal throughout
- Against queenside castlers, pivot to b4-b5 queenside expansion rather than committing to f4-f5
Key themes
- Attack — The e5–f4–f5 pawn storm is one of the most direct and effective attacking plans available to White
- Flexible — The KIA setup works against the French, Sicilian, or any other Black defence with minimal adjustment
- King Safety — White's king is castled safely behind the fianchettoed bishop, providing a secure attacking base
Typical plans
White builds the KIA setup (Nf3, g3, Bg2, 0-0, d3, Nbd2, e4) regardless of what Black plays. The main attacking plan is e5–f4–f5, creating a kingside pawn storm. This setup is particularly effective against the French and Sicilian as White sidesteps established theory while playing on familiar attacking territory. Black's queenside counterplay must be monitored carefully.
Move by move
- Nf3 — White develops flexibly, keeping options open for a KIA setup against almost anything Black plays.
- d5 — Black claims central space.
- g3 — White prepares the kingside fianchetto that defines the KIA.
- c5 — Black expands further in the centre and queenside.
- Bg2 — White completes the fianchetto, aiming at the long diagonal and Black's queenside.
- Nc6 — Black develops, supporting the centre.
- O-O — White castles into safety behind the fianchetto before committing to a central plan.
- e5 — Black builds a broad pawn centre.
- d3 — White keeps the position flexible and prepares Nbd2-e4/c4 or a later e4 break.
- Nf6 — Black completes development, and White will follow up with Nbd2, Re1, and the thematic e4 push toward a kingside pawn storm with f4-f5.
- Nbd2 — White develops the last minor piece, preparing to reroute it via f1-g3 or c4.
- Be7 — Black develops, preparing to castle.
- Re1 — White adds a rook to the e-file ahead of the central e4 push.
- O-O — Black castles into safety before the centre opens.
- e4 — White finally plays the central e4 break, the last piece of the KIA setup.
- d4 — Black closes the centre rather than allow further central tension.
- Nc4 — White reroutes the knight to c4, eyeing the newly weak d6 square and supporting a future b4 push.
- Qc7 — Black develops the queen, preparing …b5 to meet White's queenside ambitions.