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 (then in Germany but today in Poland, named Wrocław)) is a German correspondence chess Grandmaster. He is most famous for being the sixth ICCF World Champion between 1968 and 1971.