Boomstra holds the title of International Grandmaster. Bisguier achieved the International Grandmaster title in 1957. The MSO continues to give its own ranks of up to International Grandmaster. FIDE awarded him the International Grandmaster title in 1984. In 1960, he was awarded the title of International Grandmaster. He became an International Grandmaster in 1952. Nielsen became an International Grandmaster in 1994. International Master and International Grandmaster titles were awarded in 1975 and 1977 respectively. FIDE awarded Evans the titles of International Master (1952) and International Grandmaster (1957). He was awarded both the International Master and International Grandmaster titles by FIDE in 1965. The abbreviation IGM for International Grandmaster is also sometimes used, particularly in older literature. FIDE awarded him the International Grandmaster title on its inaugural list in 1950. The abbreviation IGM for "International Grandmaster" can also sometimes be found, particularly in older literature. When FIDE introduced official titles in 1950, Bernstein was awarded the International Grandmaster title. FIDE Master, International Master, International Grandmaster, and women's versions of those titles.