King's Indian Defense: Fianchetto Variation, Immediate Fianchetto

A flexible and solid opening for Black, focusing on controlling the center and preparing for a kingside attack.

The opening is characterized by Black allowing White to establish a strong pawn center while fianchettoing the dark-squared bishop on g7. This setup provides Black with a solid and flexible position, as well as opportunities for counterplay on the kingside. White typically responds by fianchettoing their own light-squared bishop on g2, aiming to control the central squares and prepare for a potential kingside attack.

In this variation, White immediately fianchettoes their light-squared bishop, which can lead to a slower and more strategic game. Black's main plan is to break in the center with moves like d6 and e5 or c5, while White will try to maintain their central pawn structure and expand on the queenside.

The opening can lead to various pawn structures, such as the Maroczy Bind or the Benoni, depending on how both players choose to proceed. It is important for Black to be patient and wait for the right moment to strike in the center or on the kingside.

This opening has been played by many top-level players, including former World Champions Garry Kasparov and Anatoly Karpov. It is a popular choice for players who prefer a more strategic and less tactical game, as well as those who enjoy playing with a solid and flexible pawn structure.