Uhlmann/Schmidt: Open Files (Progress in Chess) Strategie with his "Textbook of Chess"

with his "Textbook of Chess" being one of the best textbooks ever

Königsindischer Angriff 2

The ideas and plans behind each line are explained in detail to ensure that the reader understands them properly instead of just playing moves that he has learned by heart

what he did not see

Or what tools are available

Uhlmann/Schmidt: Open Files (Progress in Chess) Strategie with his "Textbook of Chess"The strategy and tactics associated with the open file are explained here clearly and comprehensivelyhow files are opened, blocked, occupied, and exploited as roads along which to invade the enemy position. A brief introduction lays the theoretical foundations and is followed by illustrative games, in all of which the open file is the dominant or deciding factor. In each game there is a pause at a key position where a clear verbal assessment is given;