1. d4 Nf6 2. c4 e6 3. Nf3 b6
The Queen's Indian Defense (1. d4 Nf6 2. c4 e6 3. Nf3 b6) is a solid hypermodern opening where Black fianchettoes the queen's bishop to control the e4-square. It is Black's most common alternative to the Nimzo-Indian when White avoids 3. Nc3.
Position after 1. d4 Nf6 2. c4 e6 3. Nf3 b6
The Queen's Indian was developed in the 1920s and has been a favorite of positional masters. Karpov, Kramnik, and Anand have all relied on it extensively in world championship play.