writes "If you remember the regular expression crossword set as a part of an MIT Mystery Hunt (if you don't check out Can You Do The Regular Expression Crossword? http://games.slashdot.org/story/13/02/13/2346253/can-you-do-the-regular-expression-crossword) then you might have been having withdrawal symptoms once you completed it. Now you can get your fix of regular expression puzzles at a new website http://regexcrossword.com/ that presents you with a graded set and a tutorial just in case you need to brush up on your regular expression grammar.
Before you get too excited I have to add that none of the regex crosswords come up to the MIT standard. For one thing they are all played on a rectangular rather than a hexagonal grid and they are much smaller — but they are still fun."Link to Original Source