"There are no artificial intelligences in use" would sound better - but artificial intelligence still sounds strange as a plural.
"No games are in progress" would work - unless there are two player games. -- glchess view->ai information needs rephrasing https://launchpad.net/bugs/77016 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs