Horst Robert Rittner (born July 16,1930 in Breslau, that then was in Germany but today is in Poland and is called Wrocław) is a German chess player, most famous for being the sixth ICCF World Champion in correspondence chess between 1968 and 1971.
Horst Robert Rittner (born July 16,1930 in Breslau) is a German chess player. This is most famous for being the sixth ICCF World Champion in correspondence chess between 1968 and 1971. Breslau then was in Germany. Today is in Poland. Today is called Wrocław.