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In the interview, they literally said they coached it to have certain behaviors.

They said "yes, it does that"/"it's been known to do that", not "it was coached to do that". Just as a "We've seen it do that before."

Yeah, just re-watched the clip, I think you're right. My mistake (the word "coached" confused me).

4:33 into the video: "[...] and coached it on what we thought was good or bad".

I didn't get that from the interview. It implied the bot learned the game itself from a blank slate.