On This Day: November 20

Jose Tolosa y Carreras 1846
Otto Weisert 1884
Villy Nielsen 1906
Gabriel Authier 1922
Arkady Plostak 1924
Ivan Borisenko 1928
Lev Polugaevsky 1934
Jorgen Moller 1944
Algimantas Butnorius 1946
Ye Jiangchuan 1960
Andrei Kharlov 1968
Werner Sidler 1969
Darius Zagorskis 1969
Allan Rasmussen 1983
Moulthun Ly 1991
Marc Arnold 1992


1981: Karpov defeats Korchnoi to retain world championship title