There is a new challenge about to start at http://beta.aichallenge.org/
This will be the first time that FreePascal 2.4 is supported there and since I first heard of the (last) challenge on DelphiGL.com I though here would be a good place to make an announcement.

So here is the deal: You write a program that controls a population of ants. You get a number of ant hills and explore the map with your ant horde looking for food to produce more ants and enemy ant hills that you can raze for points.
There is fog-of-war and obstacles. Moving ants in groups gives them better chances to survive by outnumbering enemies. The map is on a grid and ants wrap around if they move over the edges. A match usually has between 2-8 players and is turn based. The players make their moves simultaneously within a time window of 500ms. Oh yeah and it is free to sign up and requires no previous knowledge in AI programming.

Feel free to ask questions on the IRC channel #aichallenge on Freenode.