While there are other resources, like the video series by Markus Ragger , the most prominent "Volume 2" book is part of the series published by Quality Chess . ♟️ Boris Avrukh: Grandmaster Repertoire 9
A video course focusing on Systems without cxd5 , such as the Fianchetto (3.g3) or the Russian System (4.Nf3 Bg7 5.Qb3). While there are other resources, like the video
This book is considered a "bible" for Grunfeld players. It provides a complete, elite-level repertoire for Black against 1.d4. While there are other resources