Chess drug tests came before proof of an effectSourced
Drug tests at chess tournaments.
The evidence came years later.
The international chess federation began drug testing at events in 2001 while the effect of performance-enhancing drugs on play was debated. A 2017 study later found that some cognitive-enhancing drugs could improve performance under its test conditions.
The testing rule preceded
the research result.
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Doping in chess · Wikimedia contributors
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Reviewed: 2026-10-01