I've occasionally used daily-crossword sites as a way to relax and keep my mind working when I need to take a break from code, and the repetitiveness is one of

I've occasionally used daily-crossword sites as a way to relax and keep my mind working when I need to take a break from code, and the repetitiveness is one of the big drawbacks. Crossword puzzles have a certain vocabulary of words which are rare in conversational English but appear with high frequency in puzzles (https://en.wikipedia.org/wiki/Crosswordese https://en.wikipedia.org/wiki/Crosswordese -- how many times have you used 'olio' or 'etui' in conversation?), and poor/mass-produced crosswords take this to an extreme, which in turn takes both the challenge and the fun out of the puzzle. Also, if you do enough puzzles you will end up noticing ones which are more subtly repetitive, and again there's less fun in re-solving one you've already "done".