Use of cookies

This website uses cookie for the user authentication. These cookies are necessary, because otherwise the access to the access restricted areas could not be controlled.
Furthermore this website uses local storage. Technically these are not cookies. Local Storage is used to store all data, that allows you to continue where you left off. Currently this is only used in the games to store the progress even if you close the website and open it again. Local storage can not be accessed by any other server, because it is bound to the domain.