Joker

**[[Home]] * [[Engines]] * Joker**
|| [[image:209px-Joker_black_02.svg.png width="188" height="272" link="https://commons.wikimedia.org/wiki/File:Joker_black_02.svg"]] ||~   || The French program **Joker** was a variation of the [[Écume]] chess engine by [[Marc-François Baudot]] and [[Jean-Christophe Weill]]. The idea behind it was "Entropic extension", if the position was not stable enough, an [[Extensions|extension]] of the search was made (the stability was considered as a function of the last move). The idea came from [[Vincent David|Vincent David's]] Ph.D. thesis <ref>[[Vincent David]] (**1993**). //[[http://cat.inist.fr/?aModele=afficheN&cpsidt=161774|Algorithmique parallèle sur les arbres de décision et raisonnement en temps contraint. Etude et application au Minimax]]// = Parallel algorithm for heuristic tree searching and real-time reasoning. Study and application to the Minimax, Ph.D. Thesis, [[http://en.wikipedia.org/wiki/%C3%89cole_nationale_sup%C3%A9rieure_de_l%27a%C3%A9ronautique_et_de_l%27espace|École nationale supérieure de l'aéronautique et de l'espace]], [[http://en.wikipedia.org/wiki/Toulouse|Toulouse]], [[http://en.wikipedia.org/wiki/France|France]]</ref>.

Joker won the [[FCCC 1993|2nd French Computer Chess Championship]]. Écume hold the second place. Joker did show some impressive play, but the idea was abandoned, the search was too slow (Even if it was coded in [[Assembly|assembly language]]). ||
|| Joker playing card <ref>[[https://commons.wikimedia.org/wiki/File:Joker_black_02.svg|Joker playing card]] in [[https://en.wikipedia.org/wiki/Scalable_Vector_Graphics|SVG]] based on the french representation. This card has been made with [[https://en.wikipedia.org/wiki/GNOME|GNOME]] [[https://en.wikipedia.org/wiki/GNOME_Games_Collection|games]] in mind and has been successfully tested with Nautilus, [[https://en.wikipedia.org/wiki/Eye_of_GNOME|Eye of Gnome]] (both of them use [[https://en.wikipedia.org/wiki/Librsvg|librsvg]]) and [[https://en.wikipedia.org/wiki/Inkscape|Inkscape]]. Author: [[http://svg-cards.sourceforge.net/|David Bellot]] - [[https://en.wikipedia.org/wiki/Berkeley,_California|Berkeley, CA]], USA, August 12, 2005, [[https://commons.wikimedia.org/wiki/Joker|Joker - Wikimedia Commons]]</ref> ||~   ||^   ||
[[toc]]
=Namesake= 
* [[Joker IT|Joker]] by [[Manlio Morini]]
* [[Joker NL|Joker]] by [[Harm Geert Muller]]

=See also=
* [[Various Classifications#Comics|Comics]]
* [[Jester]] by [[Stéphane Nguyen]]
* [[Jester US|Jester]] by [[Marty Franz]] 

=External Links= 
* [[https://en.wikipedia.org/wiki/Joker|Joker disambiguation page from Wikipedia]]
* [[https://en.wikipedia.org/wiki/Joker_%28playing_card%29|Joker (playing card) from Wikipedia]]
* [[https://en.wikipedia.org/wiki/Joker_%28comics%29|Joker (comics) from Wikipedia]]
* [[https://en.wikipedia.org/wiki/Joker_%28comic_book%29|Joker (comic book) from Wikipedia]]
* [[https://fr.wikipedia.org/wiki/Karim_Ziad|Karim Ziad]] Ifrikya - The Joker, Festival de L'Estrade, [[https://en.wikipedia.org/wiki/Argein|Argein]], September 2007, [[https://en.wikipedia.org/wiki/YouTube|YouTube]] Video
> [[media type="youtube" key="ZkTwL4Obi2s"]]

=References= 
<references />
=What links here?= 
[[include page="Joker" component="backlinks" limit="20" ]]
**[[Engines|Up one Level]]**