Lawrence Charles Kaufman (born November 15, 1947) is an American chess player.
He was awarded the title Grandmaster by FIDE for winning the 2008 World Seniors Championship (which he later retroactively shared with Mihai Suba).
A longtime researcher in computer chess, Kaufman has made several contributions to chess-related works.
He helped write the opening book for the pioneering program Mac Hack, co-developed Socrates II and its commercial adaptation, Kasparov's Gambit, edited the journal Computer Chess Reports, and worked on many other research and commercial chess engines.
[4] He is also known for his work on computer chess engine Rybka 3,[5] and several books and articles, including "The Evaluation of Material Imbalances".