David Ionovich Bronstein was a Soviet chess player. Awarded the title of International Grandmaster by FIDE in 1950, he narrowly missed becoming World Chess Champion in 1951. Bronstein was one of the world's strongest players from the mid-1940s into the mid-1970s, and was described by his peers as a creative genius and master of tactics. He was also a renowned chess writer; his book Zurich International Chess Tournament 1953 is widely considered one of the greatest chess books ever written.

Grandmaster (GM) is a title awarded to chess players by the world chess organization FIDE. Apart from World Champion, Grandmaster is the highest title a chess player can attain. Once achieved, the title is held for life, though exceptionally the title can be revoked for cheating.