: Platforms like Chessable offer a gamified version of the book, using spaced repetition to help you "engrain" these tactical patterns into your memory. Usage Tips Intermediate Endgame Resources? : r/TournamentChess
Ultimately, while a PDF is convenient, upgrading to an interactive ecosystem will dramatically accelerate your pattern recognition and help you save half-points in your own competitive games. If you want to tailor your training, let me know: What is your current ? Do you prefer studying on a computer or a mobile device ?
If you think of a defensive resource not mentioned in the text, a PDF cannot tell you why your move fails.
