King's Indian Attack: Sicilian Variation

Before the first move

The King's Indian Attack is a flexible setup where White prioritizes a solid kingside structure before launching a central or kingside offensive. By meeting Black's d5 and c5 with a fianchetto, you create a slow-burning battle where understanding piece harmony is more important than memorizing sharp tactical lines.

1. Nf3White · your move

Develop your knight to f3. This flexible opening move controls the center and prepares for a kingside fianchetto while keeping your central pawn options open for later.

1... d5Black

Black replies with d5, taking a firm stake in the center. While Nf6 is the most common alternative, other systems like the Dutch Variation with f5 or the Black Mustang with Nc6 allow Black to steer the game into very different strategic waters.

Other paths here: f6 (Zukertort Opening: Arctic Defense) · h6 (Zukertort Opening: Basman Defense) · Nc6 (Zukertort Opening: Black Mustang Defense) · f5 (Zukertort Opening: Dutch Variation)

2. g3White · your move

Push your pawn to g3. This prepares to fianchetto your bishop on g2, where it will exert long-range pressure across the h1-a8 diagonal and bolster your kingside safety.

Other paths here: b3 (Nimzo-Larsen Attack: Classical Variation) · e3 (Reti: 1...d5 2.e3) · b4 (Reti: Santasiere's folly) · e4 (Reti: Tennison/Zukertort Gambit)

2... c5Black

Black plays c5, adopting a Sicilian-style central presence. This is the Sicilian Variation of the King's Indian Attack. Black could instead try the Keres Variation with Bg4 or the Double Fianchetto with g6, but c5 is the most ambitious way to challenge White's space.

Other paths here: g6 (King's Indian Attack: Double Fianchetto) · Bg4 (King's Indian Attack: Keres Variation) · e5 (King's Indian Attack: Omega-Delta Gambit) · Nc6 (Reti: KIA)

Where you stand

White will now finish the kingside development with Bg2 and castling, often followed by d3 and Nbd2 to prepare an e4 break. Black should focus on completing development with Nc6 and Nf6, deciding whether to sustain the central tension or expand on the queenside.

• f1-g2 Fianchetto the bishop to exert diagonal pressure
• e1-g1 Secure the king behind the fianchettoed bishop
• b8-c6 Develop the knight to pressure d4
• g8-f6 Develop the knight and prepare to castle