Those really have nothing in common with toribash. Go and chess are both turn-based games, which for AI is child's play. Something like Toribash though is so much more complex because it involves predictability, which is one of the hardest factors to conquer for AI.

Is self learning AI in Toribash possible? Yeah, most definitely just like any other game, but it would require resources that are way out of reach for Toribash, which is why it's practically next to impossible.