Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6

ECO E15

The Queen's Indian Defense: Fianchetto Variation, Nimzowitsch 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 Ba6.

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

The defining move Ba6 is chosen by Black on move 4.

3 named continuations branch from this position, including the Nimzowitsch Attack and the Quiet Line.

Named variations

• Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation, Nimzowitsch Attack — ECO E15
• Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation, Quiet Line — ECO E15
• Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation, Timman's Line — ECO E15

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.