Reuben Fine

Reuben C. Fine (October 11, 1914 – March 26, 1993) was an American chess player, psychologist, university professor, and author of many books on both chess and psychology. He was one of the strongest chess players in the world from the mid-1930s until his retirement from chess in 1951. He was granted the title of International Grandmaster by FIDE in 1950, when titles were introduced.

Fine's best result was his equal first place in the 1938 AVRO tournament, one of the strongest tournaments of all time. After the death of world champion Alexander Alekhine in 1946, Fine was one of six players invited to compete for the World Championship in 1948. He declined the invitation, however, and virtually retired from serious competition around that time, although he did play a few events until 1951.