Here's a really enjoyable regex crossword from, as I recall, the MIT Mystery Hunt: http://www.coinheist.com/rubik/a_regular_crossword/grid.pdf http://www.coinh

Here's a really enjoyable regex crossword from, as I recall, the MIT Mystery Hunt: http://www.coinheist.com/rubik/a_regular_crossword/grid.pdf http://www.coinheist.com/rubik/a_regular_crossword/grid.pdf