Modern Chess, ChessBase, 2016.
Nowadays, Grunfeld defense is one of the most dangerous weapons against 1.d4. The fact that this is an active and complex opening, explains it’s popularity among players from all levels from amateur to GM. Fortunately, we have good news for the fans of 1.d4 – Grunfeld will stop causing them nightmares. In his latest database, GM Petar Arnaudov provides you with a complete repertoire against Grunfeld. His recommendation is based on the so-called Russian System which arises after 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3