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Garry Kasparov was tested in 1987 by the German weekly Stern magazine as a cover-story feature. He underwent a battery of tests across multiple cognitive domains administered by a panel of psychologists. The Stern article reported a result of approximately 190.

Kasparov was World Chess Champion from 1985 (when he defeated Anatoly Karpov, age 22) to 2000, the longest reign in classical chess history. His peak FIDE rating of 2851 (1999) stood as the all-time record until Magnus Carlsen surpassed it in 2014. He retired from professional chess in 2005.

Since retirement Kasparov has been a vocal pro-democracy activist and the founder of the Human Rights Foundation. He has also been a thoughtful public commentator on artificial intelligence, with personal experience as the first World Champion to lose a serious match to a computer (Deep Blue, 1997).