The Nimzo-Indian Defense is the opening characterized by the moves 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4.

The Nimzo-Indian Defense is the opening characterized by the moves 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4. It is named for Aron Nimzowitsch, one of the pioneers of the hypermodern approach to chess openings.