Elon Musk is chasing a checkmate in his newest online spat, and this time his opponent is a chess website's social media account. It started Thursday when Musk declared that the number of non-"utterly stupid" chess moves is small and predicted the game "will be fully solved one day. "Chess.com wasn't having it.

The site's official account reposted Musk's comment with a two-word reply: "skill issue". Musk pushed back, arguing chess is difficult for humans but trivial for computers and repeating his........

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