Crossword puzzle clue "chess master who died in iceland"

Chess master who died in Iceland

Artist and chess player who said "While all artists are not chess players, all chess players are artists"

He died on "The Day The Music Died"

Chess expert's requirement for attending a chess tournament?

Chess master Karpov

American-born chess master who was the World Champion from 1972 to 1975: 2 wds.

Russian-born chess master who was the World Champion from 1969 to 1972: 2 wds.

Chess master Kasparov