Ippolit

**[[Home]] * [[Engines]] * Ippolit**
|| [[image:Hippolyte.jpg link="http://en.wikipedia.org/wiki/Hippolyta"]] ||~ || **Ippolit**,
an [[Open Source Engines|open source engine]] with unclear legal status by [[http://en.wikipedia.org/wiki/Pseudonym|pseudonymous]] authors. A former //[[Home|Chess Programming Wiki]]// page of //Ippolit// by one of its authors from May 2009, was preliminary deleted due to a claim by [[Rybka]] author [[Vasik Rajlich]], //CPW// would support [[http://en.wikipedia.org/wiki/Software_piracy|piracy sites]] and who implied //Ippolit// is a [[Clones|clone]] or derivative from //Rybka 3// <ref>private communication with [[Gerd Isenberg]]</ref> , apparently due to [[http://www.program-transformation.org/Transform/DisAssembly|disassembling]] and [[http://en.wikipedia.org/wiki/Decompiler|decompiling]]. ||
|| Hippolyta  the [[http://en.wikipedia.org/wiki/Amazons|Amazonian]] queen <ref>[[http://en.wikipedia.org/wiki/Hippolyta|Hippolyte from Wikipedia]], image from //Promptuarii iconum insigniorum// by [[http://en.wikipedia.org/wiki/Guillaume_Rouill%C3%A9|Guillaume Rouillé]]</ref> ||~ ||^ ||
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=Legal Status=
The authors of //Ippolit// call themselves [[http://en.wikipedia.org/wiki/Comrade|Comrades]] and keep pseudonymous. Head Comrade is //Yakov Petrovich Golyadkin// <ref>[[http://en.wikipedia.org/wiki/The_Double:_A_Petersburg_Poem|The Double: A Petersburg Poem]] a novella written by [[http://en.wikipedia.org/wiki/Fyodor_Dostoevsky|Fyodor Dostoyevsky]]</ref>, Deputy Head Comrade //Igor Igorovich Igoronov//, Honorary Comrade //Vladimir Ilyich Lenin// <ref>[[http://en.wikipedia.org/wiki/Vladimir_Lenin|Vladimir Lenin from Wikipedia]]</ref>, and further //Roberto Pescatore//, //Yusuf Ralf Weisskopf//, //Ivan Skavinsky Skavar// <ref>[[http://en.wikipedia.org/wiki/Abdul_Abulbul_Amir|Abdul Abulbul Amir from Wikipedia]]</ref>, and //Decembrists// <ref>[[http://ippolit.wikispaces.com/Comrades|IPPOLIT - Comrades]]</ref> <ref>[[http://en.wikipedia.org/wiki/IPPOLIT|IPPOLIT from Wikipedia]]</ref> <ref>[[http://en.wikipedia.org/wiki/Decembrist_revolt|Decembrist revolt from Wikipedia]]</ref> <ref>[[http://users.telenet.be/chesslogik//robbolito.htm|ChessLogik - RobboLito]] hosted by [[Norman Schmidt]] has a list of [[RobboLito]] comrades and Decembrists</ref>.

Ippolit pages are hosted by [[http://en.wikipedia.org/wiki/Wikispaces|Wikispaces.org]] <ref>[[http://ippolit.wikispaces.com/|IPPOLIT - home]]</ref>. Ippolit and its successor [[RobboLito]] <ref>[[http://users.telenet.be/chesslogik//robbolito.htm|ChessLogik - RobboLito]] hosted by [[Norman Schmidt]] has a list of RobboLito comrades and Decembrists</ref> were discussed in [[Computer Chess Forums]] from mid October 2009 <ref>[[http://www.talkchess.com/forum/viewtopic.php?t=30192|New engine: Ippolit]] by [[Vladimir Medvedev]], [[CCC]], October 18, 2009</ref> <ref>[[http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=12995|Official statement on [Deleted]?]] by [[Vasik Rajlich]], [[Computer Chess Forums|Rybka Forum]], October 21, 2009</ref>, and it is no longer appropriate to ignore them further. The source code is open and distributed. //Ippolit// and //RobboLito// are apparently as strong or even stronger than //Rybka 3// on a single processor. They are therefor likely to hurt interests of commercial chess program authors and companies as well as hobbyist computer chess programmers with all their original efforts over years, and finally the sportive aspects of computer chess, the competition.

The legal status of //Ippolit// and its successors, and despite the [[http://en.wikipedia.org/wiki/Socialization|socialization]] of re-engineered knowledge from commercial engines should be matter of independent scientific research probably under the aegis of the [[ICGA]] <ref>[[http://www.chessvibes.com/?q=reports/attack-of-the-clones|Attack of the clones | ChessVibes]] by [[David Levy]], 19 February, 2011</ref>.

=Origin=
In June 2010, [[Vasik Rajlich]] made following statement on Rybka and Ippolit, which was published by [[Sven Schüle]] in [[CCC]] <ref>[[http://www.talkchess.com/forum/viewtopic.php?t=34908|My recent correspondence with Vasik Rajlich]] by [[Sven Schüle]], [[CCC]], June 13, 2010</ref>:
|| {{Ippolit is disassembled Rybka 3 with changes. The changes are considerable but not even close to enough to leave any doubt. Robbolito is an evolved Ippolit, with more changes and more cleanup. I haven't checked the other new engines yet.}} ||

The same day [[Zach Wegner]] published a technical summary by former anonymous author "BB+" alias [[Mark Watkins]] about [[Rybka]] and Ippolit <ref>[[http://www.open-chess.org/download/file.php?id=13|A comparison of Rybka and IPPOLIT]] (pdf)</ref>, which demonstrates differences are substantial <ref>[[http://www.open-chess.org/viewtopic.php?f=3&t=119|BB's Rybka/Ippolit comparison]] by [[Zach Wegner]], [[Computer Chess Forums|OpenChess Forum]], June 13, 2010</ref>, and he nevertheless concluded he would find it wholly plausible that Ippolit is a "reverse-engineered Rybka with many changes" in the same forum thread. RobboLito's sentinel <ref>[[http://users.telenet.be/chesslogik//robbolito.htm|ChessLogik - RobboLito]] hosted by [[Norman Schmidt]]</ref> [[Milos Stanisavljevic]] <ref>[[http://www.rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=15405|Firebird programmers no longer anonymous?]] by oudheusa, [[Computer Chess Forums|Rybka Forum]], February 07, 2010</ref> <ref>[[http://www.open-chess.org/viewtopic.php?f=3&t=1733#p15264|Re: Is Houdini 2 Legally Copyrighted?]] by [[Jeremy Bernstein]], [[Computer Chess Forums|OpenChess Forum]], December 10, 2011</ref> is proponent of Ippolit's originality, despite his note it used ideas from [[http://en.wikipedia.org/wiki/Reverse_engineering|reverse engineering]] [[Rybka|Rybka 3]] <ref>[[http://www.talkchess.com/forum/viewtopic.php?topic_view=threads&p=434569&t=41183|Re: WCCC 2011 - Junior is the 2011 World Champion]] by [[Milos Stanisavljevic]], [[CCC]], November 25, 2011</ref>.

=Derivatives=
* [[Fire]]
* [[Igorrit]]
* [[IvanHoe]]
* [[RobboLito]]

=See also=
* [[Various Classifications#Mythology|Mythology]]

=Publications=
* [[Mark Watkins]] (**2010**). //A comparison of Rybka and IPPOLIT//. [[http://www.open-chess.org/download/file.php?id=13|pdf]] 

=Forum Posts=
==2009==
* [[http://www.talkchess.com/forum/viewtopic.php?t=30192|New engine: Ippolit]] by [[Vladimir Medvedev]], [[CCC]], October 18, 2009
* [[http://www.talkchess.com/forum/viewtopic.php?t=30237|Hippo Lite, what's really going on?]] by [[Michael Sherwin]], [[CCC]], October 20, 2009
* [[http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=12995|Official statement on [Deleted]?]] by [[Vasik Rajlich]], [[Computer Chess Forums|Rybka Forum]], October 21, 2009
* [[http://www.talkchess.com/forum/viewtopic.php?t=30276|And the Ippolit author is...]] by [[Alexander Schmidt]], [[CCC]], October 22, 2009
* [[http://www.talkchess.com/forum/viewtopic.php?t=30296|I'm in doubt if RobboLito is a clone]] by [[Volker Pittlik]], [[CCC]], October 24, 2009
* [[http://www.talkchess.com/forum/viewtopic.php?t=30413|My two cents on the whole ippolit thing]] by [[Dann Corbit]], [[CCC]], October 31, 2009
* [[http://www.talkchess.com/forum/viewtopic.php?t=30583|Thoughts...]] by [[Alexander Schmidt]], [[CCC]], November 12, 2009
* [[http://www.talkchess.com/forum/viewtopic.php?t=30612|Paradigm shifts]] by [[Gian-Carlo Pascutto]], [[CCC]], November 14, 2009
==2010==
* [[http://www.talkchess.com/forum/viewtopic.php?t=31506|ACCA stance on Ippo, Robbo and such]] by [[Charles Roberson]], [[CCC]], January 06, 2010 » [[ACCA]]
* [[http://www.talkchess.com/forum/viewtopic.php?t=34908|My recent correspondence with Vasik Rajlich]] by [[Sven Schüle]], [[CCC]], June 13, 2010
* [[http://www.open-chess.org/viewtopic.php?f=3&t=119|BB's Rybka/Ippolit comparison]] by [[Zach Wegner]], [[Computer Chess Forums|OpenChess Forum]], June 13, 2010
* [[http://www.talkchess.com/forum/viewtopic.php?t=35117|A Question for Our Sponsor..IPPO Links OK or Not?]] by [[Steve Blincoe|Steve B]], [[CCC]], June 24, 2010
* [[http://www.open-chess.org/viewtopic.php?f=3&t=788|More on Rybka/IPPOLIT (with occasional reference to Fruit)]] by BB+ ([[Mark Watkins]]), [[Computer Chess Forums|OpenChess Forum]], December 01, 2010
==2011==
* [[http://www.open-chess.org/viewtopic.php?f=5&t=1072|ь code]] by [[Franklin Titus|kingliveson]], [[Computer Chess Forums|OpenChess Forum]], February 03, 2011 <ref>[[http://borischess.wikispaces.com/Understanding+of+Ippolit|BorisChess - Understanding of Ippolit]]</ref>
* [[http://www.talkchess.com/forum/viewtopic.php?t=38198|Why are the Ippo derivative stronger than Stockfish?]] by [[Larry Kaufman]], [[CCC]], 24 February, 2011
* [[http://talkchess.com/forum/viewtopic.php?topic_view=threads&p=406820&t=38932|Re: Houdini, Fire, IvanHoe, (and Rybka?) are 'clones'...?]] by [[Jury Osipov]], [[CCC]], May 12, 2011
* [[http://www.open-chess.org/viewtopic.php?f=5&t=1497|Back to R3/IPPOLIT(/R4?)]] by BB+ ([[Mark Watkins]]), [[Computer Chess Forums|OpenChess Forum]], July 14, 2011
* [[http://www.talkchess.com/forum/viewtopic.php?topic_view=threads&p=434569&t=41183|Re: WCCC 2011 - Junior is the 2011 World Champion]] by [[Milos Stanisavljevic]], [[CCC]], November 25, 2011
* [[http://www.open-chess.org/viewtopic.php?f=3&t=1737|IPPOLIT]] by [[Franklin Titus|kingliveson]], [[Computer Chess Forums|OpenChess Forum]], December 12, 2011
==2012==
* [[http://www.talkchess.com/forum/viewtopic.php?t=44969|Unanswered question from Engine Origins forum]] by [[Eelco de Groot]], [[CCC]], September 01, 2012
 
=External Links= 
==IPPOLIT==
* [[http://ippolit.wikispaces.com/|IPPOLIT - home]]
* [[http://en.wikipedia.org/wiki/IPPOLIT|IPPOLIT from Wikipedia]]
* [[http://en.wikipedia.org/wiki/Rybka#IPPOLIT_controversy|Rybka - IPPOLIT controversy from Wikipedia]]
* [[http://de.wikipedia.org/wiki/IPPOLIT|IPPOLIT from Wikipedia.de]] (German)
* [[http://borischess.wikispaces.com/Understanding+of+Ippolit|BorisChess - Understanding of Ippolit]]
* [[http://www.playwitharena.com/?Newsticker:Archive_11|Ippolit/Robbolito/Igorrit/IvanHoe/Firebird]] - Interview with [[Victor Zakharov]] from [[ChessOK|Convekta]], January 24, 2010, [[Arena|Arena Chess GUI]], News-Ticker, Page 11, 191, MD
* [[http://www.chessvibes.com/?q=reports/chess-engine-controversy|Chess engine controversy | ChessVibes]] by [[http://www.chessvibes.com/?q=arnemoll|Arne Moll]], March 29, 2010

==Hippolyte==
* [[http://en.wikipedia.org/wiki/Hippolyte_%28disambiguation%29|Hippolyte (disambiguation) from Wikipedia]]
* [[http://en.wikipedia.org/wiki/Hippolyta|Hippolyta from Wikipedia]]
* [[http://en.wikipedia.org/wiki/A_Midsummer_Night%27s_Dream|A Midsummer Night's Dream from Wikipedia]]
* [[http://en.wikipedia.org/wiki/The_Two_Noble_Kinsmen|The Two Noble Kinsmen from Wikipedia]]
* [[http://en.wikipedia.org/wiki/Hippolyta_%28DC_Comics%29|Hippolyta (DC Comics) from Wikipedia]]
* [[http://en.wikipedia.org/wiki/Hippolyta_%28Marvel_Comics%29|Hippolyta (Marvel Comics) from Wikipedia]]
* [[http://en.wikipedia.org/wiki/Hippolyte_Rocks|Hippolyte Rocks from Wikipedia]]

==Anonymity ==
* [[http://en.wikipedia.org/wiki/Anonymity|Anonymity from Wikipedia]]
* [[http://en.wikipedia.org/wiki/Anonymous_%28group%29|Anonymous (group) from Wikipedia]]
* [[http://en.wikipedia.org/wiki/Pseudonym|Pseudonym from Wikipedia]]

=References= 
<references />
[[include page="Ippolit" component="backlinks" limit="120"]]
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