Daniel Naroditsky, an American chess grandmaster who attracted a massive online following through his livestreamed play and accessible teachings, has died at 29.

American Grandmaster Daniel Naroditsky died at the age of 29 on Monday.

Naroditsky, born in San Mateo, California, was among the most well-known and influential figures in American chess, having achieved his Grandmasters’ title in 2013 at the age of 18 shortly after winn...