>What did the Soviet books talk about that the other books were ignoring?
Amongst other things they introduced better training methods; diligent classification and cataloging of common and critical positions. For instance, a systematic introduction to pryomes and positional maoeuvers. These books were written by people who had mastered the craft as players or coaches of elite players.
Improvement in chess to a large part entails becoming conversant with known positions and manoeuvers.
Recall that it was almost treason to reveal the techniques that soviet grandmasters used. This was one reason why Korchnoi was harrassed.
Amongst other things they introduced better training methods; diligent classification and cataloging of common and critical positions. For instance, a systematic introduction to pryomes and positional maoeuvers. These books were written by people who had mastered the craft as players or coaches of elite players. Improvement in chess to a large part entails becoming conversant with known positions and manoeuvers.
Recall that it was almost treason to reveal the techniques that soviet grandmasters used. This was one reason why Korchnoi was harrassed.
Three examples of fantastic books:
[1]Find the Right Plan with Anatoly Karpov [https://www.amazon.com/Find-Right-Plan-Anatoly-Karpov/dp/190...]
[2]Techniques of positional play Brozhnik and Terekhin [ https://www.amazon.com/Techniques-Positional-Play-Practical-...]
[3]A practical guide to Rook endgames by Nikolay Minev [https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Ds...]
..and I have not even gotten started on the Dvoretsky series