411 REFERENCE · Wikibooks
Chess Opening Theory/1. b4/1...e6/2. Bb2/2...Nf6/3. b5/3...b6
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Polish Opening: Queen's Indian Variation
3...b6
Black prepares to fianchetto their c8 bishop to b7, a sideline. White can choose from a multitude of moves.