Crossword from RegEx

I came across the next game for programmers on the Internet.
This time, regular expressions became the object of bullying - the authors made Regex Crossword , where instead of questions, a set of regular expressions.

The rules are pretty simple:

• A rule corresponds to each row and each column (at the higher levels - two rules), the answer for this cell will be a symbol corresponding to all the rules
• To check using JavaScript RegEx
• The answer will be a word or even a phrase corresponding to the name of the section
• Each job has a title, which may be a hint.

There are 9 difficulty levels, each with 5 tasks (except for the tutorial, with 9 problems and Hamlet, with 6 monstrous tasks).
As for me - a pretty good way to start learning RegEx, remember forgotten or stretch your brains.