From the end of 1960s to the mid-1970s, Kari Juhani Sorri was one of Finland's leading chess players.
In 1972, in Finnish Chess Championships he has won silver medal.
He participated with Finland team in 10th Correspondence Chess Olympiad (1987–1995).
[5] In 1982, Kari Juhani Sorri won a tournament organized by the Finnish Correspondence Chess Federation.
[7] This biographical article relating to a Finnish chess figure is a stub.