Sjeng

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an open source engine written by Gian-Carlo Pascutto with help from Adrien Regimbald, Daniel Clausen, Dann Corbit, Lenny Taelman, Ben Nye, Ronald de Man, David Dawson, Tim Foden and Georg von Zimmermann. Sjeng was initially based on Faile 0.6 by Adrien Regimbald, and an attempt to create a Bughouse & Crazyhouse playing program. Sjeng 7 became open source under the GPL, also playing standard and Antichess.
 * Sjeng**,

The Chess Engine Communication Protocol compliant Sjeng 11.2 was the final open source program released in January 2002, while Sjeng 12.7 was closed source, didn't play variants, and emerged to the commercial Deep Sjeng in 2003, initially market by Lex Loep's Lokasoft. In it's [|suicide and loser's] mode, Sjeng applies Proof-number search. Otherwise it uses Alpha-Beta with Aspiration Window and PVS, History and Killer heuristics, Transposition tables, SEE for move ordering and pruning, selective extensions, Adaptive Null Move Pruning, Extended Futility Pruning, Limited Razoring, and Book learning. Sjeng is the engine of Apple's chess application as shipped in MacOS X 10.4.

=Etymology= The name Sjeng, which is also a [|Limburgish] masculine given name, is the reverse of the long time number one human Bughouse player, with the handle "Gnejs".

=See also=
 * Deep Sjeng
 * Given Name

=Forum Posts=

2000 ...

 * [|Sjeng 7 out - with sources now (GPL)] by Gian-Carlo Pascutto, CCC, April 15, 2000
 * [|Sjeng 10 has been released] by Gian-Carlo Pascutto, rgcc, June 7, 2001
 * [|Sjeng 12.7 and 11.2 released] by Gian-Carlo Pascutto, rgcc, January 2, 2002
 * [|Sjeng 12.10 released (UCI support!)] by Gian-Carlo Pascutto, rgcc, March 22, 2002
 * [|Sjeng 12.11 Released] by Gian-Carlo Pascutto, rgcc, April 2, 2002
 * [|sjeng's suicide tablebases] by Jean Efpraxiadis, rgcc, July 11, 2002

2010 ...

 * [|Sjeng 11.2 and suicide chess] by Michel Van den Bergh, CCC, September 03, 2012

=External Links=

Chess Engine

 * [|Sjeng's ICGA Tournaments] (includes Deep Sjeng)
 * [|Sjeng : a chess-and-variants playing program]
 * [|GitHub - gcp/sjeng: A chess and chess variants playing program]
 * [|Sjeng (Chess) from Wikipedia]
 * [|Sjeng] from WBEC Ridderkerk

Chess Variants

 * [|Antichess from Wikipedia]
 * [|Bughouse chess from Wikipedia]
 * [|Crazyhouse from Wikipedia]

Misc

 * [|Sjeng (disambiguation) from Wikipedia]
 * [|Sjeng (name) from Wikipedia]

=References= =What links here?= include page="Sjeng" component="backlinks" limit="60"
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