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		Lawrence (Larry) Charles Kaufman, born November 15, 1947 is an American chess Grandmaster [1] , chess writer, Shogi player, chess teacher, opening book author, and professional computer chess programmer with focus on evaluation. In 1965, while already a chess master and top rated U.S. Junior player and began to study Economics at MIT, he started his computer chess career as opening book author of Richard Greenblatt's Mac Hack VI [2]. In the 80s and 90s, Larry Kaufman collaborated with Don Dailey and Julio Kaplan. Kaufman is well known for his research on material [3] [4] and his work and publication on The Evaluation of Material Imbalances [5] and doubled pawns [6] based on statistics. In 1993 as editor of ICD's Computer Chess Reports he had proposed a 25 problem test suite for chessplaying programs [7]. Larry Kaufman was a member of the Rybka team around Vasik Rajlich, and successfully improved the evaluation of Rybka 3. He worked again with Don Dailey on Doch [8] and since 2010 on Komodo [9] [10]. After Don Dailey's death in November 2013, the work on Komodo is continued with Mark Lefler.
Larry Kaufman [11]

Chess Programs

Larry Kaufman was/is involved in the development of following chess programs ^[12] :

• Mac Hack VI
• Rex
• RexChess
• Heuristic Alpha
• Titan
• Socrates
• Kasparov's Gambit
• Star Socrates
• Corel Chess
• Mini
• Occam
• Rybka
• Doch
• Komodo

Senior World Champion

In 2008 Larry won the FIDE Senior World Championship in Bad Zwischenahn, Germany ^{[13] [14]} , also receiving the Grandmaster title ^[15].

Publications

1986 ...

• Larry Kaufman (1986). ACM's North American Computer-Chess Championship. Computer Chess Reports, 1986 Fall/Winter Edition, pp. 25 » ACM 1985
• Larry Kaufman (1986). 5th World Computer Chess Championship. Computer Chess Reports, 1986 Fall/Winter Edition, pp. 33 » WCCC 1986
• Larry Kaufman (1988). ACM 1986 North American Computer-Chess Championship. Computer Chess Reports, 1987-88, pp. 8 » ACM 1986
• Larry Kaufman (1988). ACM 1987 North American Computer-Chess Championship. Computer Chess Reports, 1987-88, pp. 9 » ACM 1987

1990 ...

• Larry Kaufman (1990). The Rexchess Story. Computer Chess Reports Quarterly. Vol. 1, No. 1, pp. 8 » RexChess
• Larry Kaufman (1993). Rate Your Own Computer. Computer Chess Reports, Vol. 3, No. 1, pp. 17-19 » Kaufman Test
• Larry Kaufman (1993). How Our PC Chess Programs Are Developed. Computer Chess Reports, Vol. 3, No. 2, pp. 12 » Engine Testing
• Larry Kaufman (1993). Rate Your Own Computer - Part II. Computer Chess Reports, Vol. 3, No. 2, pp. 13-15 » Kaufman Test
• Larry Kaufman (1993). CCR Problem Set Vol. 3 No 1 and Vol. 3 No 2. Computer Chess Reports, Vol. 4, No. 1, pp. 30-31 » Kaufman Test
• Larry Kaufman (1994). The One-Hour CCR Test. Computer Chess Reports, Vol.4, No.2, pp. 25-30 » CCR One Hour Test
• Larry Kaufman (1994). The Relative Value of the Pieces. Computer Chess Reports, Vol. 4, No. 2, pp. 33

1995 ...

• Larry Kaufman (1995). Aegon Tournament. Computer Chess Reports, Vol. 5 No. 2, pp. 4 » Aegon 1995
• Larry Kaufman (1995). Does Fritz deserve to be World Champion? Selective Search 60, pp 3, pdf hosted by Mike Watters
• Larry Kaufman (1996). 13th World Microcomputer Chess Championship. Computer Chess Reports, Vol. 5, Nos. 3+4 » WMCCC 1995
• Larry Kaufman (1999). The Evaluation of Material Imbalances. (first published in Chess Life March 1999, online version edited by Dan Heisman) » Material, Material Tables

2000 ...

• Larry Kaufman (2005). All About Doubled Pawns. (first published in Chess Life, May 2005, p.22) » Doubled Pawn

2010 ...

• Larry Kaufman (2010). Handicap Matches: Rybka vs. Grandmaster. ICGA Journal, Vol. 33, No. 2
• Larry Kaufman (2010). A New Use For Monte-Carlo. ICGA Journal, Vol. 33, No. 2
• Larry Kaufman (2012). The Kaufman Repertoire for Black and White. New In Chess ^[16]

Forum Posts

2010 ...

• Question for Bob Hyatt by Larry Kaufman, CCC, January 14, 2010
• GM Kaufman v.Novag Constellation 3.6 QR Odds (Moves 1-40) by Steve B, CCC, July 03, 2010 » Constellation
  Will Connie Ever Castle?? by Steve B, CCC, July 14, 2010
  GM Kaufman v.Novag Constellation 3.6 QR Odds (Moves 41-55) by Steve B, CCC, August 10, 2010
• Why are the Ippo derivative stronger than Stockfish? by Larry Kaufman, CCC, February 24, 2011 » Ippolit, Stockfish
• Thank you Vincent! by Larry Kaufman, CCC, November 15, 2011
• Lazy eval by Larry Kaufman, CCC, November 27, 2011 » Lazy Evaluation
• opening novelty by Larry Kaufman, CCC, December 30, 2011

2012

• Should reduction depend on depth? by Larry Kaufman, CCC, January 14, 2012 » Late Move Reductions, Komodo
• Rounding by Larry Kaufman, CCC, January 18, 2012 » Score
• checks in quies by Larry Kaufman, CCC, March 22, 2012 » Quiescence Search, Check
• stand pat or side to move bonus by Larry Kaufman, CCC, March 22, 2012 » Tempo
• A new way to compare chess programs by Larry Kaufman, CCC, June 21, 2012 » Komodo, Match Statistics
• margin of error by Larry Kaufman, CCC, September 16, 2012
• Another testing question by Larry Kaufman, CCC, September 23, 2012
• La Máquina Preservadora 4. Don Dailey & Larry Kaufman by Luis a, Meca Foro, October 18, 2013

2014

• Time Management by Larry Kaufman, CCC, May 29, 2014 » Time Management

2015 ...

• The future of chess and elo ratings by Larry Kaufman, CCC, September 20, 2015 » Chess, Match Statistics, Opening Book
• A bizarre evaluation by Larry Kaufman, CCC, March 20, 2016 » Evaluation, Opening
• a second "grand" title by Larry Kaufman, CCC, January 27, 2018

External Links

• Larry Kaufman from Wikipedia
• Larry Kaufman's ICGA Tournaments
• Larry Kaufman's Chess Games from chessgames.com
• Larry Kaufman from New In Chess
• IM Larry Kaufman wins US Senior Open by Susan Polgar Chess and Information Blog, May 02, 2008
• Komodo chess engine by Don Dailey and Larry Kaufman
• Quality Chess Blog » Q&A with Larry Kaufman, December 12, 2013
• Komodo 8: about the authors, ChessBase News, September 19, 2014
• The New Chess World Champion by Ken Regan, Gödel's Lost Letter and P=NP, December 28, 2014 » TCEC Season 7, Komodo
• Komodo: Birth of a chess engine by Priyadarshan Banjan and Albert Silver, ChessBase News, July 20, 2016
• Interview with Robert Houdart, Mark Lefler and GM Larry Kaufman by Nelson Hernandez, Chessdom, November 23, 2017 » TCEC Season 10

References

1. ^ Larry is senior world champion and GM! from the Rybka Forum November 11, 2008
2. ^ Richard Greenblatt, Donald Eastlake, 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
3. ^ The joys of chess – and the value of the pieces, ChessBase News, December 21, 2011
4. ^ Christian Hesse (2011). The Joys of Chess - Heroes, Battles & Brilliancies. New In Chess, ISBN: 978-90-5691-355-7
5. ^ Larry Kaufman (1999). The Evaluation of Material Imbalances. (first published in Chess Life March 1999, online version edited by Dan Heisman)
6. ^ Larry Kaufman (2005). All About Doubled Pawns. (first published in Chess Life, May 2005, p.22)
7. ^ Kaufman test suite in SAN/FEN post from Steven Edwards in rec.games.chess
8. ^ A question to Larry Kaufman, Rybka Forum, December 30/31, 2009
9. ^ Komodo chess engine by Don Dailey and Larry Kaufman
10. ^ Komodo - Rybka in Danger?, Rybka Forum, January 21, 2010
11. ^ The Rybka Team
12. ^ rec.games.chess.computer FAQ 3/3
13. ^ Welcome to the website on XVIII. Senior World Championship 2008 in Bad Zwischenahn
14. ^ Final Standings Senior World Championship Men 2008 Bad Zwischenahn
15. ^ The United States Chess Federation - Larry Kaufman World Senior Champion!, November 8, 2008
16. ^ Re: Engine books: Hiarcs vs. Komodo ... @Larry by Larry Kaufman, CCC, January 13, 2012

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