WASHINGTON — Multiple reports confirm that the cause of death for chess grandmaster Daniel Naroditsky, who passed away unexpectedly at the age of 29, has been officially disclosed.

The North Carolina Office of the Chief Medical Examiner revealed to People and TMZ that the toxicology report indicated Naroditsky had ingested several substances prior to his passing. These included methamphetamine and amphetamine, along with elements typically found in kratom, a substance with effects similar to opioids.

The medical examiner’s office informed People that Naroditsky’s death was classified as “accidental poisoning due to a drug cocktail.”

The Charlotte Chess Center announced his passing on Monday.

“Daniel was not only a gifted chess player, commentator, and educator but also a beloved figure in the chess community. He was admired and respected by fans and fellow players worldwide,” the center stated in a message from the Naroditsky family.

A five-time U.S. Championship competitor and former columnist for Chess Life, Naroditsky rose to prominence as a teenager. He won the gold medal in the Under-12 Open section of the 2007 FIDE World Youth Championships and later claimed the U.S. Junior (Under-20) Championship title in 2013 at age 17. 

At age 14, he published the book “Mastering Positional Chess.”

In recent years, Naroditsky built a larger audience through his streaming and online commentary. He was widely celebrated for his educational content and engaging personality.

“He loved streaming, and he loved trying to be educational,” grandmaster Hikaru Nakamura said during a Kick stream. 

“The chess world is very grateful for him,” Nakamura added. “[Naroditsky was] just someone who tried to do what he could for chess.”

Grandmaster Oleksandr Bortnyk echoed the sentiment during his own stream, calling Naroditsky “a very good guy” and “a good friend.”

“Let us remember Daniel for his passion and love for the game of chess, and for the joy and inspiration he brought to us all every day,” the Charlotte Chess Center added.