Gideon

**[[Home]] * [[Engines]] * Gideon**
|| [[image:Gideon.jpg link="http://nl.wikipedia.org/wiki/Gideon_%28Bijbel%29"]] ||~   || **Gideon**,
a [[Rebel]] based series of chess programs developed by [[Ed Schroder|Ed Schröder]] and marketed by [[TASC]] and [[Hegener & Glaser]] in conjunction with plug-in cards as well as [[Dedicated Chess Computers|dedicated chess computer]] [[Module|modules]] based on [[ARM2]] [[http://en.wikipedia.org/wiki/Reduced_instruction_set_computing|RISC]] processors. The native [[IBM PC|PC]] program **Mephisto Gideon** was developed in cooperation with [[Hegener & Glaser]], and later marketed by [[Ossi Weiner]] and various other companies and dealer. 

The World Microcomputer Champion and World Champion titles from [[WMCCC 1991|1991]] and [[WCCC 1992|1992]] look a bit ambiguous, since they are not only dedicated to Gideon or the 1992 entry [[ChessMachine]] (with a Gideon program), advertised by [[TASC]] for the ChessMachine and [[Hegener & Glaser]] for the [[Mephisto RISC]] modules, but from Ed's perspective also to Rebel itself <ref>[[http://members.home.nl/matador/chess_2.htm|World Champion (1991-1995)]]</ref> . ||
|| [[http://en.wikipedia.org/wiki/Gideon_%28biblical_figure%29|Gideon]] <ref>Judge [[http://en.wikipedia.org/wiki/Gideon|Gideon]], [[http://en.wikipedia.org/wiki/Russian_icons|Russian Orthodox icon]] from first quarter of 18-th century, source: [[http://en.wikipedia.org/wiki/Iconostasis|Iconostasis]] of [[http://en.wikipedia.org/wiki/Kizhi|Kizhi]] [[http://en.wikipedia.org/wiki/Monastery|monastery]], [[http://en.wikipedia.org/wiki/Karelia|Karelia]], [[http://en.wikipedia.org/wiki/Russia|Russia]], [[http://nl.wikipedia.org/wiki/Gideon_%28Bijbel%29|Gideon (Bijbel) from Wikipedia.nl]] (Dutch)</ref> ||~   ||^   ||
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=RISC= 
Gideon was the name of the first [[ARM2]] [[http://en.wikipedia.org/wiki/Reduced_instruction_set_computing|RISC]] version of Rebel, running on a [[TASC]] [[http://en.wikipedia.org/wiki/ISA_bus|ISA card]] for an [[IBM PC]]. It became third at the [[WMCCC 1990]] in [[http://en.wikipedia.org/wiki/Lyon|Lyon]], and World Microcomputer Champion at the [[WMCCC 1991]] in [[http://en.wikipedia.org/wiki/Vancouver|Vancouver]] <ref>[[http://en.wikipedia.org/wiki/REBEL_%28chess%29|REBEL (chess) from Wikipedia]]</ref> . The further improved Gideon 3.1/32 MHz [[ChessMachine]] became World Champion at the [[WCCC 1992]] in [[http://en.wikipedia.org/wiki/Madrid|Madrid]]. RISC Gideon was further marketed as PC plug-in [[ChessMachine]] by [[TASC]] in bundle with [[The King]] program by [[Johan de Koning]] <ref>[[http://www.schach-computer.info/wiki/index.php/TASC_ChessMachine|TASC ChessMachine]] from [[http://www.schach-computer.info/wiki/index.php/Hauptseite_En|Schachcomputer.info Wiki]]</ref> , and as [[Dedicated Chess Computers|dedicated chess computer]] of the [[Mephisto RISC]] series by [[Hegener & Glaser]] <ref>[[http://www.schach-computer.info/wiki/index.php/Mephisto_Risc_1MB|Mephisto Risc 1MB]] from [[http://www.schach-computer.info/wiki/index.php/Hauptseite_En|Schachcomputer.info Wiki]]</ref> <ref>[[http://www.schach-computer.info/wiki/index.php/Mephisto_Risc_2|Mephisto Risc 2]] from [[http://www.schach-computer.info/wiki/index.php/Hauptseite_En|Schachcomputer.info Wiki]]</ref> . 

=Description=
from [[Don Beal|Don Beal's]] [[WMCCC 1991]] report <ref>[[Don Beal]] (**1991**). //Report on the [[WMCCC 1991|11th World Microcomputer Chess Championship]]//. [[ICGA Journal|ICCA Journal]], Vol. 14, No. 2</ref>:
|| {{Written by Ed Schröder (programmer) and [[Jan Louwman]] (a strong chess-player and designer of the [[Opening Book|opening book]]), both previously known over many years for their [[Rebel]] program that run on [[6502]] pocessors, Gideon is a new program for the ARM-2 RISC CPU and has taken 1.5 years (4000 man-hours) to develop. The evaluation function is complex, incorporating much chess knowledge, and positional scores can range up 1.5 times a Pawn. Gideon includes specialized knowledge for many types of endgame (defined to be when material < 26) such as rook-and-pawn endings. The search techniques include [[Iterative Deepening|iterative deepening]], [[Check Extensions|check extensions]] and [[Singular Extensions|singular extensions]]. [[Moves]] are [[Move Generation|generated]] one-at-a-time, rather than all-and-sort.}} ||
[[#MephistoGideon]]
=Mephisto Gideon= 
The [[IBM PC|PC]] program **Mephisto Gideon** was developed in cooperation with [[Hegener & Glaser]] and was Ed's first program running under the [[MS-DOS]] operating system, also bundled as **Mephisto Advantage** with the [[Saitek PC Auto Chessboard]]. It was entirely written in [[C]] and marketed by [[Ossi Weiner]] and other dealer in large quantities <ref>[[http://www.schachversand.eu/e/detail/software/101.html|Ed Schröder - Mephisto Gideon]] from [[Schachversand Niggemann]]</ref>, while independently **Schröder BV** kept their own brand name Rebel selling it via their own distribution channels in smaller quantities <ref>[[http://members.home.nl/matador/chess_3.htm|REBEL on the PC (1993-2001)]]</ref>. In 2012, Ed Schröder resurrected //Mephisto Gideon Professional// as [[WinBoard]] and [[UCI]] compatible [[http://en.wikipedia.org/wiki/Donationware|donationware]] <ref>[[http://www.talkchess.com/forum/viewtopic.php?t=44819|Mephisto Gideon Professional (1993) for Winboard and UCI]] by [[Ed Schroder|Ed Schröder]], [[CCC]], August 17, 2012</ref> <ref>[[http://www.top-5000.nl/donationware.htm|Donationware]] by [[Ed Schroder|Ed Schröder]]</ref>.

=Forum Posts=
* [[https://groups.google.com/d/msg/rec.games.chess/05obi896BnI/eVqo4QvNqF4J|New programs released!]] by Ralf Stephan, [[Computer Chess Forums|rgc]], October 10, 1993 » [[Chess Genius]]
* [[http://www.talkchess.com/forum/viewtopic.php?t=44819|Mephisto Gideon Professional (1993) for Winboard and UCI]] by [[Ed Schroder|Ed Schröder]], [[CCC]], August 17, 2012
* [[http://www.talkchess.com/forum/viewtopic.php?t=51081|Q to Ed Schröder-Gideon Pro = Rebel Decade ???]] by Gustavo Mallada, [[CCC]], January 28, 2014

=External Links= 
==Chess Program==
* [[http://rebel13.nl/dos/mephisto%20gideon.html|Mephisto Gideon]] from [[http://rebel13.nl/index.html|Rebel Pure Nostalgica]]
* [[http://rebel13.nl/dedicated/chessmachine.html|ChessMachine]] from [[http://rebel13.nl/index.html|Rebel Pure Nostalgica]]
* [[http://www.game-ai-forum.org/icga-tournaments/program.php?id=222|Mephisto Gideon's ICGA Tournaments]]
* [[http://www.game-ai-forum.org/icga-tournaments/program.php?id=224|Chessmachine's ICGA Tournaments]]
* [[http://www.top-5000.nl/cp.htm|Download Chess Programs]] hosted by [[Ed Schroder|Ed Schröder]]
* [[http://www.top-5000.nl/donationware.htm|Donationware]] by [[Ed Schroder|Ed Schröder]]
* [[http://query.nytimes.com/gst/fullpage.html?res=9D0CE5DB103BF936A15755C0A967958260|Chess]] by [[http://en.wikipedia.org/wiki/Robert_Byrne|Robert Byrne]], [[http://en.wikipedia.org/wiki/The_New_York_Times|New York Times]], June 25, 1991 - on Chess Machine [[Gideon]] versus [[Cumulus]], [[WMCCC 1991]] <ref>[[http://www.game-ai-forum.org/icga-tournaments/round.php?tournament=59&round=2&id=1|Vancouver 1991 - Chess - Round 2 - Game 1 (ICGA Tournaments)]]</ref>
==Misc==
* [[http://en.wikipedia.org/wiki/Gideon_St%C3%A5hlberg|Gideon Ståhlberg from Wikipedia]]
* [[http://en.wikipedia.org/wiki/Gideon_%28biblical_figure%29|Gideon (biblical figure) from Wikipedia]]
* [[http://en.wikipedia.org/wiki/Gideon|Gideon - disambiguation page from Wikipedia]]

=References= 
<references />
=What links here?= 
[[include page="Gideon" component="backlinks" limit="40" ]]
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