# IPPOLIT

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> Source: https://en.wikipedia.org/wiki/IPPOLIT
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{{short description|Open-source chess program}}
{{Infobox Software
|name                       = IPPOLIT
|logo                       = 
|screenshot                 = IvanHoe analyzing a position with multi-pv enabled using ComradesGUI.png
|caption                    = IvanHoe analyzing a position with multi-pv enabled using ComradesGUI
|collapsible                = 
|author                     = 
|developer                  = Unknown
|released                   = {{start date and age|2009|05|02|df=yes}}
|discontinued               = 
|latest release version     = 
|latest release date        = <!-- {{Start date and age|YYYY|MM|DD}} -->
|latest preview version     = 999946h (IvanHoe)  
|latest preview date        = {{start date and age|2011|12|08|df=yes}}
|programming language       = [C](/source/C_(programming_language))
|operating system           = [Linux](/source/Linux), [Windows](/source/Windows)
|platform                   = 
|size                       = 
|language                   = 
|genre                      = [Chess program](/source/Chess_program)
|license                    = [Public Domain](/source/Public_domain_software)<ref>{{cite web|url=http://ippolit.wikispaces.com/FAQ |title=Ippolit - Faq |accessdate=2016-09-25 |url-status=bot: unknown |archiveurl=https://web.archive.org/web/20100106090742/http://ippolit.wikispaces.com/FAQ |archivedate=2010-01-06 }}</ref>
|website                    = {{URL|ippolit.wikispaces.com}}
}}
'''IPPOLIT''' is an [open-source](/source/open-source_software) [chess program](/source/chess_program) released by authors using [pseudonyms](/source/pseudonyms), Yakov Petrovich Golyadkin, Igor Igorovich Igoronov, Roberto Pescatore, Yusuf Ralf Weisskopf, Ivan Skavinsky Skavar, and Decembrists.

The program is a [console application](/source/console_application) that communicates with a chess [graphical user interface](/source/graphical_user_interface) (GUI) via standard [Universal Chess Interface](/source/Universal_Chess_Interface) protocol. IPPOLIT is a [bitboard](/source/bitboard) chess engine optimized for [64-bit](/source/64-bit) architecture with native support for both [32-bit](/source/32-bit)/64-bit Linux and Windows operating systems. With about 3100 ELO it is listed in TOP 50 strongest chess programs.<ref>{{cite web|url=http://www.amateurschach.de/|title=Frank's Chess Page (FCP)|first=Frank|last=Quisinsky|website=Amateurschach.de|accessdate=2016-09-25}}</ref>

==Releases==
* '''IPPOLIT''', released on May 2, 2009, was the first release of the series. It was split in multiple usenet messages.<ref>{{cite web|url=http://newsgroups.derkeiler.com/Archive/Rec/rec.games.chess.computer/2009-05/msg00022.html|title=Re: IPPOLIT release|website=Newsgropus.derkeiler.com|accessdate=2016-09-25|archive-url=https://web.archive.org/web/20160927030658/http://newsgroups.derkeiler.com/Archive/Rec/rec.games.chess.computer/2009-05/msg00022.html|archive-date=2016-09-27|url-status=dead}}</ref>
* [https://web.archive.org/web/20130515082622/http://ippolit.wikispaces.com/RobboLito RobboLito], released in September 2009, was the second installment of the IPPOLIT series. [Endgame tablebase](/source/Endgame_tablebase), [https://web.archive.org/web/20121022095516/http://ippolit.wikispaces.com/robbobases RobboBases] support was introduced.
* [https://web.archive.org/web/20140216105724/http://ippolit.wikispaces.com/Igorrit Igorrit], released in January 2010, added [Multi-core](/source/Multi-core) support, and was the third installment of the IPPOLIT series.
* [https://web.archive.org/web/20140214061535/http://ippolit.wikispaces.com/IvanHoe IvanHoe], released in January 2010, is the fourth and current project [code name](/source/code_name) of the IPPOLIT series. It features, but not limited to, [http://chessprogramming.wikispaces.com/principal+variation Multi-PV] {{Webarchive|url=https://web.archive.org/web/20120124022408/http://chessprogramming.wikispaces.com/Principal%20variation |date=2012-01-24 }}, [Monte-Carlo Tree Search](/source/Monte-Carlo_Tree_Search), and [Chess960](/source/Chess960). IvanHoe uses a decrementing [versioning](/source/Version_control) scheme. The latest release includes [source-code](/source/source-code) for a [Java](/source/Java_(programming_language)) GUI, [https://web.archive.org/web/20121030235021/http://ippolit.wikispaces.com/ComradesGUI ComradesGUI.]

==Controversy==
IPPOLIT was initially prohibited from many computer chess websites after the author of the chess engine [Rybka](/source/Rybka) claimed it to be a [clone](/source/Clone_(computing)) of his program.<ref>{{cite web|url=http://chessprogramming.wikispaces.com/Ippolit|title=chessprogramming|website=Chessprogramming.wikispaces.com|accessdate=2016-09-25|archive-date=2016-10-02|archive-url=https://web.archive.org/web/20161002223327/http://chessprogramming.wikispaces.com/Ippolit|url-status=dead}}</ref> IPPOLIT authors have denied the accusation. Even today, some chess rating lists still refuse to include it in their lists of tested programs.

==References==
{{Reflist}}

==External links==
* {{webarchive |url=https://web.archive.org/web/20111112091208/http://ippolit.wikispaces.com |date=November 12, 2011 |title=Official website }}

Category:2009 software
Category:Chess engines
Category:Public-domain software with source code
Category:Free software programmed in C

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Adapted from the Wikipedia article [IPPOLIT](https://en.wikipedia.org/wiki/IPPOLIT) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/IPPOLIT?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.