I like puzzles and think that they do have some educational value, particularly in aiding the development of critical thinking and resilience amongst pupils. That is why I have the Pooch Puzzles series (https://www.tes.com/resources/search/?authorId=191328&q=pooch puzzles&shop=mathsmutt ) intended to help develop mathematical thinking and cognitive development through problem solving activities. Clearly, there are many users of this site who disagree - but there are also many enigmatologists and cruciverbalists amongst us. I have opened a new board at https://www.pinterest.co.uk/mathsmutt/educational-puzzles-crosswords-sudokos-and-more/ and invite anyone who wishes to do so to add existing Pinterest links for TES puzzles which they would like added to the board below , or PM me with a link to any of their TES puzzles . Please excuse the spelling of sudoku - thread titles can't be edited!