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> I should also say that it's somewhat clear that Sedol made one suboptimal move, and AlphaGo capitalized on it.

Can you please indicate this time in the video of the game? Thanks a lot.

I watched the live stream commentated by Myungwan Kim so I know what the parent is referring to (later in the game, Myungwan Kim referred back to that possibly being a mistake), although not being a Go player myself most of it was over my head.

It was fairly early in the game and about 4-5 lines down from the top and towards the center, center-left. Apparently, Lee Sedol played a little conservatively and "didn't take a ko" (?) when he could have.

Hope that helps you figure out what they're referring to, or maybe someone else can chime in, but that's what I remember.

Thanks. That did the job.

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