Regex Crossword
> In order to remember which puzzles you have solved, we need to identify you in some way.<p>No, that's a lie. No need for identification in order to save progress, you can use: cookie, browser storage, etc.. for that.<p>Please be honest about why you are using social media for login. Because when I login with Facebook for example, you can see a large portion of my Facebook profile and depending on the plan you have way more than that.