Hans Berliner, former World Correspondence Chess champion, passed away a few days ago. He was an ICCF GM as well as a FIDE IM, and was also well known for his work in the field of computer science.
A Professor at Carnegie-Mellon, he helped developed the chess program Hitech, as well as the Backgammon program BKG 9.8, which defeated the Backgammon World Champion in a short match in 1979.
He was the World Champion in CC from 1965-68 and defeated Yakov Estrin in a celebrated game. After this he returned to University to complete his PhD, and had a long career in Comptuer Science, with an emphasis on Computer Chess.