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Link: Regular expression crossword puzzle
From Rodrigo, @mathsppblog@fosstodon.org, A crossword where all hints are regular expressions!
Direct link to the puzzle grid
I printed it out, and it took me a couple of enjoyable hours to solve. I did have to check my understanding of the finer points of regular expressions at https://regex101.com by typing in some of the clue expressions and then trying different values to see if they matched.
Regex isn't hard enough, so I present you with a crossword where all hints are regular expressions!
I confess at first it looked like the hints don't contain enough information to solve the puzzle but after some slow but steady progress I can confirm that they do 🤣
The original puzzle is from https://puzzles.mit.edu/2013/coinheist.com/rubik/a_regular_crossword/
I shared this on my blog: https://mathspp.com/blog/problems/regex-crossword
Direct link to the puzzle grid
I printed it out, and it took me a couple of enjoyable hours to solve. I did have to check my understanding of the finer points of regular expressions at https://regex101.com by typing in some of the clue expressions and then trying different values to see if they matched.