There is no way to not know that O10 was dead after white plays O9, since AlphaGo handled much more complicated fights even in the games in October.
My only guess from looking at the sequence around O10, where black makes its own big group bigger is that it was preparing for a ko-fight, and wanted to have ONE huge ko-threat in that area, something like that - I don't see any other reasonable explanation. On Sun, Mar 13, 2016 at 7:55 AM, Olivier Teytaud <olivier.teyt...@lri.fr> wrote: > Should we understand that AlphaGo had not understood that O10 was dead ? > (sorry for Go beginner question :-) ) >
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