{{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 |operating system = Linux, Windows |platform = |size = |language = |genre = Chess program |license = Public Domain<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 chess program released by authors using pseudonyms, Yakov Petrovich Golyadkin, Igor Igorovich Igoronov, Roberto Pescatore, Yusuf Ralf Weisskopf, Ivan Skavinsky Skavar, and Decembrists.
The program is a console application that communicates with a chess graphical user interface (GUI) via standard Universal Chess Interface protocol. IPPOLIT is a bitboard chess engine optimized for 64-bit architecture with native support for both 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, [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 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 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, and Chess960. IvanHoe uses a decrementing versioning scheme. The latest release includes source-code for a Java 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 claimed it to be a clone 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