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Magnus Carlsen’s Remarkable Memory

Watch as David Howell sets up several historical chess positions and quizzes world champion Magnus Carlsen on them. Spoiler alert: he knows them all. The one he gets in just four moves after opening is just…otherworldly.

Carlsen is one of a number of world class performers that have prodigious memory skills. See also LeBron James Has a Photographic Memory, Xavi Hernández identifying goals he scored (and the final scores of those matches), Aaron Rodgers’ memory of his significant plays, and Iker Casillas remembers the score of every match he’s played. (via robin sloan)

Update: Former world champion Garry Kasparov:

I was tested similarly in my world championship days, and yes, most Grandmasters can identify thousands of games and positions. It’s not trivial, but, as Magnus said, it’s our job! But his serious interest in the past (human!) games is also a competitive advantage.

Kasparov once gave an impressive public exhibition of this skill. (via @stevenstrogatz)