Menu “About This Ebook”

This screen contains statistics about the open ebook.

Positions: shows how many unique positions are in the ebook.

Names: shows how many positions have names (used for navigating endgame and tactics ebooks).

Read Only: shows whether the ebook has been opened in read-only mode, preventing changes from being made.

Positions Trained: shows the number of positions that you have correctly trained along with the percentage of the total number of positions that have been trained.

Data Version: shows the technical version of the ebook.