In order to use the Green Chess site, users have to accept the following rules.

1. The site

• The main purpose of the Green Chess site is to allow people playing chess with each other through the internet, but it is also a collection of chess-related information.
• The information pages, the public games played on this site and the pages for trying out the rules of specific chess variants can be visited and used by any visitor without registration.
• In order to play with other players, registration is needed. To sign up, one has you give the following data:
  • a valid e-mail address – this is used for login, and a link is sent to this address to confirm the registration, and also some notifications will be sent to it, depending on the settings of the user;
  • a password – this is also needed for login – the user is responsible to protect and keep it secretly – if the user forgets the password, it can be changed using the e-mail address, but it cannot be get back;
  • a name – to identify users to each other.
  The user can also give a description and a picture later.
  The e-mail address and the password is private, visible to no other user. The name, description and picture can be visible to others: for a public profile, any member of the site can see them; for a private profile, only those whom this user has common games or messages with can see them.
• The site has two languages: English and Hungarian. When writing messages to other users, one should choose a language that the others also speak. This can be deduced from the language that they use the site in, which can be seen on their profile (if it is public or visible).

2. Chess

• No external help. Players have to use their own knowledge to play with other players on this page. They may not use external help (e.g. computer or other person) to decide which move to make in any actual position.
• Non-moving players lose after a time. Any started game will eventually finish with result (i.e. someone wins, someone loses, or draw). If a player on turn does not move for two weeks, the game finishes and this player loses. Furthermore, a player cannot start a new game while having active games where he/she is on turn and did not move for more than a week (but less than two weeks).
  In this context, a game becomes "started" upon the completion of the first round, i.e. after each player moved (so many times, that is required in that game in one turn). Before that, in the starting phase, any player can quit the game without losing. A game in starting phase has two weeks to become started, otherwise it is closed without result.
• No talk behind the back of other players. In multiplayer (three- or four-player) games, one part of the players may not communicate about the game position with each other excluding the other players. In particular in four-player games, teammates may not consult about the strategy without the knowledge of the opponents. They should do it in the comment box of the game, where all players can see it.

3. Other

• Cultured behaviour. It is forbidden to insult, humiliate, harass or threaten anyone in this site.
• Honest usage. The site must be used properly. It is forbidden to attack or crack it, to exploit any bug the page might have in a harmful way, to overload it or to damage it in any way, or to try to do it. On the other hand, helpful experiment or testing is welcome.
• No warranty. There is no warranty at all that the site works perfectly and is permanently available.
  This does not mean that the author does not try to achieve this, moreover he welcomes any such feedback that moves the site in that direction. This statement means only that he is not legally liable for this, or for any damage this site might cause to anyone. Users use the site for their own risk.
• The site uses HTML, CSS, JavaScript, cookies and LocalStorage. The two latter store small pieces of information on the user's computer, and are used for login, to save some settings and to improve the performance of the site.