17 birthdays, 4 matches, tournaments and games and 3 deaths from chess history on April 21.

20242 years ago today
Candidates Tournament 2024 ended
Won by Gukesh D
Card photo: Frans Peeters, CC BY-SA 2.0, via Wikimedia Commons
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Matches, tournaments and games
- 1962Women US Championship 1962Began · won by Gisela Kahn Gresser
- 2014Danish Chess Championship 2014Ended · won by Allan Stig Rasmussen
- 20152015 Greek Chess ChampionshipBegan · won by Athanasios Mastrovasilis
- 2024Candidates Tournament 2024Ended · won by Gukesh D
Born on April 21
- 1855Theophilus ThompsonAmerican chess player
- 1923Yakov EstrinRussian chess player
- 1932Lora YakovlevaRussian chess player
- 1932Claude LemoineFrench journalist
- 1947Gaguik OganessianArmenian chess player
- 1952Milan VelimirovićSerbian chess player
- 1953Leonid GofshteinIsraeli chess player
- 1961Silvio DanailovBulgarian chess player
- 1961Valery ShanshinKyrgyz chess composer
- 1963Lars MonsenNorwegian adventurer, musher and author
- 1965Mihail MarinRomanian chess player
- 1967Li WenliangChinese chess player
- 1971Sune Berg HansenDanish chess player
- 1972Tong YuanmingChinese chess player
- 1988Subramanian Arun PrasadIndian chess player
- 1989Li ChaoChinese chess player
- 1996Phiona MutesiUgandan chess player
Died on April 21
- 1928Vasily OmelianskyRussian academician and physician
- 1999Roger DanielFrench chess player
- 2004László LindnerHungarian chess player
Dates from Wikidata (CC0). Photos from Wikimedia Commons, credited on each card. Dates can differ between sources, especially before 1918 when Russia used the old calendar.