The King's Indian Attack is a flexible system that allows White to employ familiar setups regardless of Black's response. In the Smyslov Variation, after the initial moves Nf3 Nf6 g3 g6 b4, White opts for a pawn thrust on the queenside with ♙b4. This aggressive approach seeks to challenge Black's setup directly by expanding on the queenside.
Best Moves
The Strategic ♙d5
This move aims to establish central control, a fundamental principle of opening theory. By advancing the pawn to d5, Black seeks to open lines for their pieces while also potentially breaking White's pawn chain. One strategic follow-up for Black could be to support the central pawn with ♙e6, further fortifying the center while continuing development. Additionally, if White captures on d5, Black can recapture and maintain a sturdy central presence.
The Flexible ♗Bg7
Developing the bishop to g7 aligns with attaining control over the long diagonal. The fianchettoed bishop pressures White's center and gains influence across the board. This setup supports a pawn advance like ♙c6, creating a potential launchpad for the d5 pawn push or bolstering the position against White’s queenside activity.
The Centralizing ♙c6
Playing ♙c6 prepares for a pawn break with ♙d5, a typical pawn structure aiming for central control. This neutralizes White's pawn on b4’s intention to expand, while still maintaining solid development and flexibility in the setup.
The Provoking ♙a5
Countering White's queenside expansion with ♙a5 directly challenges White's pawn structure. This move looks to induce a pawn capture on a5, after which Black can recapture with the rook, thereby gaining a half-open file. Alternatively, this move might lead to a strong pawn chain with further capturing actions if White is not careful.
Important Alternatives
Solid ♙a6
By meeting White’s queenside expansion with ♙a6, Black adopts a solid stance. This denies the urgency of direct confrontation and prepares potential counterplay with ...b5, gaining space and countering White's b4-pawn thrust.
Conservative ♙b6
This involves setting up a structure akin to a Hedgehog formation, a defensive strategy that allows Black to strike back once the position becomes favorable. Developing to b6 can prepare for a future c5 or d5 push, indirectly clashing against White's pawn setup.
Critical Mistakes
Tempting but Trapped ♘Nh5
Although ♘Nh5 provides offbeat play by attacking White’s g3 pawn, it misplaces the knight and foregoes effective central or flank control. White can easily strengthen the pawn structure while developing comfortably, leaving the knight stranded.
Defenseless ♙b5
Attempting to advance ♙b5 potentially exposes weakness. This move immediately faces potential disaster with the pawn becoming overextended. White can easily undermine the structure by capturing, creating more open lines for White's pieces to exploit.
Conclusion
In the King's Indian Attack: Smyslov Variation, Black faces a choice of consolidating central control or boosting developmental harmony. White’s early queenside engagement poses questions that Black must address through flexible, solid, or even direct reconciling moves. Each option offers distinct strategic pathways. Understanding these dynamics and the nature of the position allows one to effectively counteract White’s plans while laying down the foundations for robust play on both sides.