In case there is someone out there who never saw MIT's entry into the RegEx competition: http://rampion.github.io/RegHex/ This is the web incarnation of that hexagon puzzle.
The MIT puzzle (from the 2013 Mystery Hunt) was called "A Regular Crossword" and its credit says "Dan Gulotta, based on an idea by Palmer Mebane".
(Just so it's not credited to MIT in general; each year's Mystery Hunt is written by a specific puzzle team, and indeed each puzzle is written by specific puzzlers!)
My main problem with this is telling the difference between O and 0, the clue O's look more like 0 so I have to copy paste them. (Although I don't think I've had any numbers required for solutions yet).
The zeroes have a slash through them on my browser - does yours not have that?
In case there is someone out there who never saw MIT's entry into the RegEx competition: http://rampion.github.io/RegHex/ This is the web incarnation of that hexagon puzzle.
The MIT puzzle (from the 2013 Mystery Hunt) was called "A Regular Crossword" and its credit says "Dan Gulotta, based on an idea by Palmer Mebane". (Just so it's not credited to MIT in general; each year's Mystery Hunt is written by a specific puzzle team, and indeed each puzzle is written by specific puzzlers!)
This new site is super-awesome and challenging, but a great thing about the hexagonal grid in "A Regular Crossword" was that each hexagon was constrained by three intersecting regular expressions rather than two. That meant that the constraints could be trickier or vaguer in some ways, and comparatively more dependent on the sequence of elements within a regular expression rather than on the process of elimination between two intersecting sets.
Cool game, it really helped me brush up my regex skills. I think I found an error in “The Lektor Device“: The “I“ in “WITH” could also be a “T” from the rules, but only the “I” is accepted.
The "I" can't be "T" because the regex on the bottom (.(\sSAI).*) forces it to be "I".
No in this case the regex on the bottom only applies the . to the square in question while the \sSAI in question applies to the second square. It seems that it could be a I or a T.
A site knowing my facebook account is a small issue, facebook knowing a visited that site is the big one.
There is a good chance that Facebook already knows you visited a particular site because that site is already serving Facebook content (via a like button, for example).
In case there is someone out there who never saw MIT's entry into the RegEx competition: http://rampion.github.io/RegHex/ This is the web incarnation of that hexagon puzzle.
I liked this puzzle too and I also made a web based version: http://stardrifter.org/regexp/ . Yours looks nicer but I do miss one feature from my version which is the ability to click a clue to rotate it into view.
Pretty cool but I don't feel like I am actually learning regex. I think the explanations/definitions need to be more clear and probably the answers less easy to guess.
I learned regex this way about a year ago. First I went through the tutorials on http://regexone.com/, then started working the puzzles to burn it in. Really easy and useful once you understand it!