Games done in Ada is a rather rare thing to find, so when a game does pop into existence, or is revived as is the case here, then it deserves mention.
At the moment the AI player is, according to Gustaf himself, quite easy to beat, but improving on that is on his list of things to do.
The game is available in a bzr repository:
bzr branch http://gustaf.thorslund.org/src/adaothello/trunk adaothello
GNAT and GtkAda is required to build the it.
As can be seen here, Adrian Hoe is quite happy about Gustaf Thorslund picking up his old game – or as Gustaf have coined it: Waking up a sleeping beauty.