Deep+Sjeng

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 * Home * Engines * Deep Sjeng**

a private and former commercial chess engine by Gian-Carlo Pascutto, which emerged in 2002 from the 12.7 closed source branch of the chess variant and chess playing open source engine Sjeng. Opposed to other commercial engines with the surename "deep" to indicate the version is able to play on multiple processors and sold for almost the double price than their "none deep" counterparts, Deep Sjeng, albeit able to play on multiple cores as well, is the native engine name for single as well as multiple processors.
 * Deep Sjeng**,

Deep Sjeng was market since 2003 by Lex Loep's company Lokasoft. It came with the ChessPartner graphical interface and supports UCI and the Chess Engine Communication Protocol. Version 2.X with the Mayura Chess Board and its third incarnation Deep Sjeng 3.x were distributed via Gian-Carlo's own site, but Deep Sjeng is no longer for sale.

=Tournaments= Deep Sjeng played many computer chess tournaments. It participated (so far) at six World Computer Chess Championships :


 * ~ Edition ||||~ Tournament ||~ Ranking ||~ Participants ||~ Score ||~ Games ||
 * ~ 11th || WCCC 2003 || [|Graz] ||= 11 ||= 16 ||= 4.5 ||= 11 ||
 * ~ 12th || WCCC 2004 || [|Ramat Gan] ||= 10 ||= 14 ||= 5.5 ||= 11 ||
 * ~ 13th || WCCC 2005 || [|Reykjavík] ||= 3 ||= 12 ||= 7.5 ||= 11 ||
 * ~ 15th || WCCC 2007 || [|Amsterdam] ||= 6 ||= 11 ||= 6 ||= 11 ||
 * ~ 16th || WCCC 2008 || [|Beijing] ||= 8 ||= 10 ||= 3.5 ||= 9 ||
 * ~ 17th || WCCC 2009 || [|Pamplona] ||= 1 ||= 9 ||= 6.5 ||= 9 ||

Deep Sjeng further played various Dutch Open Computer Chess Championships, International CSVN Tournaments, Livingston Chess960 Computer World Championships, dominated The Chess Programmers Tournament with three wins so far from four editions, and won the Italian IOCSC 2010. Online Deep Sjeng played multiple CCT Tournaments, where Deep Sjeng won the CCT12 in 2010 and CCT13 in 2011. Since 2008, Deep Sjeng participated the ACCA World Computer Rapid Chess Championship always with top rankings, winning the WCRCC 2012.

=Screenshot=
 * [[image:http://sjeng.org/ds2_1.png width="827" height="651" link="http://sjeng.org/deepsjeng2.html"]] ||
 * Deep Sjeng 2.5 with Mayura Chess Board ||

=Parallel Search= Gian-Carlo Pascutto in a reply to Georg von Zimmermann on Deep Sjeng's parallel search :

How is Deep Sjeng going? What did you use to understand the parallel algorithms you are using (which ones) ?

||

=Automated Learning= In 2007, Gian-Carlo's experimental program Stoofvlees aka Deep Sjeng 2.7 with a set of feature recognizers coupled to a neural network, had its evaluation function entirely automatically learned from "watching" Grandmaster games. The results were incorporated into Deep Sjeng 3.0. The engine has noticeably improved in strength, particularly in the areas where it was less optimal before.

=Forum Posts=
 * [|Deep Sjeng testers wanted] by Gian-Carlo Pascutto, CCC, August 28, 2002
 * [|Deep Sjeng 1.0 released] by Lex, rgcc, March 3, 2003
 * [|Deep Sjeng Opteron Performance Results] by Gian-Carlo Pascutto, CCC, August 06, 2003
 * [|Positions from the WCCC2005: Deep Sjeng - Zappa] by Gian-Carlo Pascutto, CCC, August 26, 2005
 * [|Deep Sjeng 2.5 has arrived!] by Eelco de Groot, April 24, 2007
 * [|Deep Sjeng 2.7 released] by Jens, CCC, September 03, 2007
 * [|Incredibly crazy game from Leiden: Deep Sjeng - The King] by Gian-Carlo Pascutto, CCC, October 18, 2009
 * [|Deep Sjeng @ 29th Dutch Open] by Gian-Carlo Pascutto, CCC, October 19, 2009
 * [|Re: Chess program with Artificial Neural Networks (ANN)?] by Gian-Carlo Pascutto, CCC, January 08, 2010
 * [|Deep Sjeng 50-move rule bug] by Gabor Szots, CCC, March 14, 2010
 * [|Deep Sjeng @ ICT 2010] by Gian-Carlo Pascutto, CCC, June 02, 2010

=External Links=
 * [|Sjeng's ICGA Tournaments] (mostly Deep Sjeng)
 * [|Sjeng (Chess) from Wikipedia]

=References= =What links here?= include page="Deep Sjeng" component="backlinks" limit="80"
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