The Queen's Indian Defence is one of the most reliable defenses against 1.d4, and features in the repertoires of many of the world's top grandmasters. GM Michael Roiz supplies an elite repertoire built on sound positional principles, offering active piece play and a fight for the initiative. From the starting point of 1.d4 Nf6 2.c4 e6, the main focus is on 3.Nf3 b6 while Roiz also covers 3.g3 (Catalan) and miscellaneous options.