Modern Chess, ChessBase, 2019.
Everyone, who is a 1.d4 player encountered a problem - what to do against the Gruenfeld Defence? It is a sound opening in which Black attacks White's center from the very beginning. In many lines, the theory goes so far that many games end in a forced draw without even a single own move from both players. In this database, GM Postny proves that the aggressive 5.h4 creates serious practical problems for Black. The author deals with many relatively unexplored position. In all the critical lines, he provides fresh ideas and novelties. After studying this database, you can play 5.h4 at any level.