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IvanHoe analyzing a position with multi-pv enabled using ComradesGUI
IvanHoe analyzing a position with multi-pv enabled using ComradesGUI
Initial release2 May 2009; 9 years ago (2009-05-02)
Preview release
999946h (IvanHoe) / 8 December 2011; 6 years ago (2011-12-08)
Written inC
Operating systemLinux, Windows
TypeChess program
LicensePublic Domain[1]

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.[2]



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.[4] IPPOLIT authors have denied the accusation. Even today, some chess rating lists still refuse to include it in their lists of tested programs.


  1. ^ "Ippolit - Faq". Web.archive.org. Archived from the original on 2010-01-06. Retrieved 2016-09-25.
  2. ^ Quisinsky, Frank. "Frank's Chess Page (FCP)". Amateurschach.de. Retrieved 2016-09-25.
  3. ^ "Re: IPPOLIT release". Newsgropus.derkeiler.com. Retrieved 2016-09-25.
  4. ^ "chessprogramming". Chessprogramming.wikispaces.com. Retrieved 2016-09-25.

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