Disclaimer first: I'm not a ML practioner, so this might be wrong, though I'm guessing not too blatantly. In a broad stroke, I think all games should and could

Disclaimer first: I'm not a ML practioner, so this might be wrong, though I'm guessing not too blatantly. In a broad stroke, I think all games should and could be dominated by machines nowadays -- though because it is no longer an interesting problem, no one really tried to do it anymore. The last big challenges were dealing with incomplete information game (poker, starcraft) and continuous state space game (starcraft, dota etc.), which was solved ~2-3 years ago. There is still challenges (AI still favor short-term rewards, while human has better long term planning), as well as technicalities (the machines doesn't really play like human: if you can control individual units, certain things like overkill doesn't happen anymore and certain units suddenly becomes overpowered). But those are just obstacles to playing a perfect game, you can still beat human reliably even with those limitation.