Comment by twic

4 days ago

Teh Guardian used to (?) publish puzzles by Chris Maslanka which were like this, and, as i recall, pretty good. There are a couple of books collecting them:

https://www.worldofbooks.com/en-gb/products/the-pyrgic-puzzl...

https://www.worldofbooks.com/en-gb/products/pyrgic-puzzles-b...

This should be more of the same:

https://uk.bookshop.org/p/books/university-of-the-mind-fiend...

The GCHQ Christmas Challenges might be worth a look too.