Indian Defense

1.d4 Nf6

ECO A45

The Indian Defense is a chess opening reached after 1.d4 Nf6, catalogued under code A45 in the Encyclopaedia of Chess Openings (ECO).

The defining move Nf6 is chosen by Black on move 1.

36 named continuations branch from this position, including the Pseudo-Benko and the Accelerated London System.

Named variations

Study this line with a grandmaster

This position is covered in the Nimzo-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.