Chess’s international governing body said Wednesday it’s considering disciplinary action against a Russian former world champion who persistently leveled unproven cheating allegations at Daniel Naroditsky in the year leading up to the American grandmaster’s death.

The Charlotte Chess Center in North Carolina, where Naroditsky trained and worked as a coach, announced his death Monday. He was 29. The cause of death has not been made public.

Russian grandmaster Vladimir Kramnik, who held the world title for several years in the early 2000s, began accusing the California-born pro of cheating in online chess last October. He continued to share his suspicions on social media over the past year without providing substantial evidence.

Naroditsky, who at 18 became a grandmaster, the highest titl

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