Queen's Indian Defense: Fianchetto Variation

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3

ECO E15

The Queen's Indian Defense: Fianchetto Variation is a chess opening line in the Queen's Indian Defense complex, reached after 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3.

It is catalogued under code E15 in the Encyclopaedia of Chess Openings (ECO).

The defining move g3 is chosen by White on move 4.

6 named continuations branch from this position, including the Check Variation and the Nimzowitsch Variation.

Named variations

• Queen's Indian Defense: Fianchetto Variation, Check Variation — ECO E15
• Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation — ECO E15
• Queen's Indian Defense: Fianchetto Variation, Rubinstein Variation — ECO E15
• Queen's Indian Defense: Fianchetto Variation, Sämisch Variation — ECO E15
• Queen's Indian Defense: Fianchetto Variation, Traditional Line — ECO E15
• Queen's Indian Defense: Fianchetto Variation, Kramnik Variation — ECO E17

Study this line with a grandmaster

This position is covered in the Bogo-Indian Defense course: a GM-authored repertoire you study move by move, then practice against a human-like AI opponent.

Every chess term used here is defined in the chess terms glossary. Browse all opening courses or the full ECO code index.