The HN guidelines call for changing a title when it's misleading or linkbait. I rewrote this one accordingly. Suggestions for further improvement are welcome.
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this is actually very demanding on brain functions. i find the "high speed chess" description not too far from the truth. it's not because it's a "game" that it's simple, easy, or "just require no-life practicing".
Don't make that mistake.
Top players are actually geniuses at making the best choice the fastest and tracking multiple tasks at the same time. All this happens in milliseconds, constantly, there is no break until the game is over.
I believe that the basic brain function is actually choice-making, which makes.. this benchmark pretty accurate. Wisdom, etc.. all this comes with experience and isn't related to the brain's ability to function at it's peak level.