Reshevsky, many times over. "In 1981, at the age of 70, he tied for 3rd place in the U.S. Championship. In 1984, at the age of 72, he took first place in the p

Reshevsky, many times over. "In 1981, at the age of 70, he tied for 3rd place in the U.S. Championship. In 1984, at the age of 72, he took first place in the powerful Reykjavik Open, which featured many grandmasters" http://www.chessgames.com/player/samuel_reshevsky.html http://www.chessgames.com/player/samuel_reshevsky.html