Max Euwe

Machgielis "Max" Euwe (Dutch: [ˈøːʋə];[1] May 20, 1901 – November 26, 1981) was a Dutch chess grandmaster, mathematician, author, and chess administrator. He was the fifth player to become World Chess Champion (1935–37). Euwe served as President of FIDE, the World Chess Federation, from 1970 to 1978