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'''Lawrence (Larry) Charles Kaufman''', (born November 15, 1947)<br/>
is an American chess [https://en.wikipedia.org/wiki/International_Grandmaster Grandmaster] <ref>[http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=8266 Larry is senior world champion and GM!] from the [[Computer Chess Forums|Rybka Forum]] November 11, 2008</ref> , chess writer, [[:Category:Shogi Player|Shogi player]], chess teacher, [[:Category:Opening Book Author|opening book author]], and professional computer chess programmer with focus on [[Evaluation|evaluation]].
In 1965, while already a chess master and top rated U.S. Junior player and began to study [https://en.wikipedia.org/wiki/Economics economics] at [[Massachusetts Institute of Technology|MIT]], he started his computer chess career as opening book author of [[Richard Greenblatt|Richard Greenblatt's]] [[Mac Hack|Mac Hack VI]] <ref>[[Richard Greenblatt]], [[Donald Eastlake]], [https://en.wikipedia.org/wiki/Steve_Crocker [Stephen D. Crocker]] ('''1967'''). ''The Greenblatt Chess Program''. Proceedings of the AfiPs Fall Joint Computer Conference, Vol. 31, pp. 801-810. reprinted ('''1988''') in [[Computer Chess Compendium]]</ref>.
In the 80s and 90s, Larry Kaufman collaborated with [[Don Dailey]] and [[Julio Kaplan]]. Kaufman is well known for his research on [[Material|material]] <ref>[https://en.chessbase.com/post/the-joys-of-che-and-the-value-of-the-pieces The joys of chess – and the value of the pieces], [[ChessBase|ChessBase News]], December 21, 2011</ref> <ref>[[Christian Hesse]] ('''2011'''). ''The Joys of Chess - Heroes, Battles & Brilliancies''. [https://en.wikipedia.org/wiki/New_In_Chess New In Chess]</ref> and his work and publication on ''The Evaluation of Material Imbalances'' <ref>[[Larry Kaufman]] ('''1999'''). ''[https://www.chess.com/article/view/the-evaluation-of-material-imbalances-by-im-larry-kaufman The Evaluation of Material Imbalances]''. (first published in [https://en.wikipedia.org/wiki/Chess_Life Chess Life] March 1999, online version edited by [[Dan Heisman]])</ref> and [[Doubled Pawn|doubled pawns]] <ref>[[Larry Kaufman]] ('''2005'''). ''[https://de.scribd.com/document/10151669/All-About-Doubled-Pawns All About Doubled Pawns]''. (first published in [https://en.wikipedia.org/wiki/Chess_Life Chess Life], May 2005)</ref> based on [[Match Statistics|statistics]].
In 1993 as editor of [[ICD Corporation|ICD's]] [[Computer Chess Reports]], Kaufman proposed a 25 problem [[Kaufman Test|test suite]] for chessplaying programs <ref>[https://groups.google.com/d/msg/rec.games.chess/Q-euoCEq31w/PXCyDugCxCkJ Kaufman test suite in SAN/FEN] by [[Steven Edwards]], [[Computer Chess Forums|rec.games.chess]], November 28, 1993</ref>. During the late 90s and early 2000s, Larry Kaufman was affiliated with [[Excalibur Electronics]]. He was chess consultant supporting [[Ron Nelson]] concerning [[Evaluation|evaluation]], and responsible for the [[Opening Book|opening books]] of their [[Dedicated Chess Computers|dedicated chess computers]] <ref>[http://www.hiarcs.net/forums/viewtopic.php?t=6768&start=78 Excalibur Electronics] by [[Ron Nelson|ChessChallenger]], [[Computer Chess Forums|Hiarcs Forum]], December 22, 2015</ref> <ref>[http://www.hiarcs.net/forums/viewtopic.php?t=6768&start=112 Re: Ron Nelson] by [[Ron Nelson|ChessChallenger]], [[Computer Chess Forums|Hiarcs Forum]], December 23, 2015</ref>. Larry Kaufman was member of the [[Rybka]] team around [[Vasik Rajlich]], and successfully improved the evaluation of [[Rybka|Rybka 3]].
