GUI:

- almost all useful features are missing ;)

- users duplicate over time.. maybe games too?

- games don't get updated it seems

- trivial: remember the time of the last move for restarting the timer

VIEWER:

- various off-by-one (or off-by-half) errors ("edgy" stones)

BUGS: (send to wms if time is right)

- Room Chats don't check username.
- game channel messages for games in challenge are not healthy to the server it seems.