18 birthdays, 3 matches, tournaments and games and 4 deaths from chess history on July 27.

1904122 years ago today
Lyudmila Rudenko was born
Women's World Chess Champion
Card photo: Unknown authorUnknown author, Public domain, via Wikimedia Commons
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Matches, tournaments and games
- 19303rd Chess OlympiadEnded
- 1975Women US Championship 1975Ended · won by Diane Savereide
- 1996U.S. Chess Championship 1996Ended · won by Alex Yermolinsky
Born on July 27
- 1795Ludwig BledowGerman chess player
- 1863Ignatz von PopielPolish-Ukrainian chess player
- 1877Stefano Rosselli del TurcoItalian chess player
- 1902Teodors BergsLatvian chess player
- 1904Lyudmila RudenkoWomen's World Chess Champion
- 1920Igor ZhdanovLatvian chess player
- 1930Emanoil-George ReicherRomanian chess player
- 1935Hillar KärnerEstonian chess player
- 1939Tüdeviin ÜitümenMongolian chess player
- 1947Sergiu-Henric GrunbergChess player
- 1964Alexander FaulandAustrian chess player
- 1965Aleksander CzerwońskiPolish chess player
- 1970Mònica Vilar LópezSpanish chess player
- 1971Davor RogićCroatian chess player
- 1976Demis HassabisBritish artificial intelligence researcher
- 1986Jure BorišekSlovene chess player
- 1988Aramís Álvarez PedrazaCuban chess player
- 1998Kathiê Goulart LibrelatoBrazilian chess player
Died on July 27
- 1899Tassilo von Heydebrand und der LasaGerman chess player
- 1927Alfrēds HartmanisLatvian chess player
- 1962Roy Turnbull BlackAmerican chess player
- 1982Ludovit PotučekSlovak 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.