For posting: - invitations to games (you can also use the New Game menu or go straight to the Chess Invitation) - information about upcoming tournaments - discussion of games (please limit this to completed games or discussion on how a game has arrived at a certain position ... speculation on who has an advantage or the benefits of potential moves is not permitted) - links to interesting related sites (non-promotional)
You are right that could be a problem.In the single games you can look who is online, challenge and play at once. But if you speak about a tournement we have first to test the technic of he server.
The regular way is sure to set a fixed time in the invitation,when the tournement is starting and everybody has to decide about his participation.