Hello!
I was recently playing some UltraBullet games with Scan engine. I lost all of the games. Even at the level 1, which I think is the hardest level and that the level 8 is the easiest level. It only makes Scan play worse moves, not play slower.
So I think that it would be a good idea to optimize Scan engine (slow down), so that you can play with it and that it plays at your level.
Regards
Supergraczacz