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What an amazing result! Evaluating fewer (by a factor of 1000) positions AlphaZero still beats Stockfish.

In the figure on its preferred openings I find it very interesting that it doesn't like the Ruy Lopez very much over training time (there is a small bump but that is transient). I am hardly a chess expert but I know that it was very favored at the world championships so maybe the chess world will be turned upside down by this result now?

Positing that the chess world is bigger than the Go world (in terms of interest and finances) there is probably going to be a race to replicate these results "at home" and train yourself before your competitors :)