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How to play the English Opening
(lemmy.ml)
This is a group which aggregates, posts, and comments on chess-related resources.
Is this at all helpful? https://archive.org/details/howtoplayenglish0000karp/mode/1up
https://annas-archive.org/md5/62fb23873282cc415f15f167a75f40ee
Maybe useful to others but as i already have the .pdf file the links do not help me.