The Gruenfeld is one of the most aggressive openings against
1.d4, and it’s no wonder that Garry Kasparov has included it into
his opening repertoire. Playing with White, one is well-advised to
accept the challenge since in the harmless variations it’s usually
already Black who dictates the course of action. In the main lines,
however, theoretical knowledge is of great importance. Knut Neven
has taken on the great task of arranging the huge amount of data –
all more than 60,000 games – in a clear-cut way, appropriately
dealing with all important variations.