A toxicology report has confirmed that American chess grandmaster Daniel Naroditsky died from cardiac arrhythmia contributed by methamphetamine and kratom use. The 29-year-old was found unresponsive in his Charlotte home on October 19, 2025, after friends grew concerned over his missed flight. The death, ruled accidental, came amid stress from unproven cheating allegations by former world champion Vladimir Kramnik.
Daniel Naroditsky, a prominent figure in the chess world known for his streaming and educational content, passed away at age 29 in his Charlotte, North Carolina, residence. According to a report from the North Carolina Office of the Chief Medical Examiner released on January 21, 2026, the cause was probable cardiac arrhythmia due to cardiac involvement in systemic sarcoidosis, with methamphetamine and kratom as contributing factors. Toxicology tests conducted on October 23 detected methamphetamine, amphetamine (a metabolite), mitragynine, and 7-hydroxymitragynine—active components of kratom, a plant-based supplement not federally regulated by the FDA.
Naroditsky was last confirmed alive around 3 p.m. on October 18, 2025, when he accepted a food delivery; the partially eaten meal remained on his table when discovered. Friends performed a wellness check on October 19 after he missed a flight to Colorado, finding him on his living room couch amid bags of kratom powder and over-the-counter cough medicine. Two days earlier, on October 17, the same friends had visited following concerns about his 'concerning altered mental status' during a chess livestream, confiscating approximately 40 pills believed to be Adderall.
No drug paraphernalia or alcohol was found, and levels of substances were non-lethal, but they likely increased arrhythmia risk. Radiographic imaging suggested lung disease consistent with sarcoidosis. Authorities ruled out foul play, noting no evidence of intentional overdose.
Naroditsky, a child prodigy who became a grandmaster at 18, had faced significant stress from cheating accusations by Vladimir Kramnik starting in late 2024. Kramnik alleged use of computer chess engines, claims Naroditsky denied and which lacked proof. In his final livestream, Naroditsky said, 'Ever since the Kramnik stuff, I feel like if I start doing well, people assume the worst of intentions.' His mother, Elena, told the Daily Mail, 'There was nothing more important to Daniel than his dignity and his name as a chess player.'
Kramnik responded to the report on X, calling the death an 'immense tragedy' and decrying a 'cynical smear campaign' linking him to it, which led to murder threats against his family. He noted urging friends to help Naroditsky on the morning of his death. The International Chess Federation filed a complaint against Kramnik in November 2025 for harassment. Naroditsky, ranked No. 150 worldwide and No. 17 in the US at his death, had won the US National Blitz Championship in August 2025 and coached at the Charlotte Chess Center.
