IPPOLIT is a series of extremely strong open source chess engines. The first version was released in October 2009, giving rise to a very fast development of following versions. The last version Firebird is considered to be the strongest chess engine of the world.
Version history
editUp to now the engines were published under the following names, in chronological order:
- IPPOLIT
- RobboLito
- Igorrit - support of multiprocessing added.
- IvanHoe - support of multi-PV and improved time control
- Firebird - further improvement by Kranium and Sentinel
Test results
editThe engine is extremely strong and using only one processor core it has beaten multi-core Rybka 3 (the world's best commercial engine) in many tests (though, the test results were controversial).
Rybka controversy
editAfter its release in October 2009, IPPOLIT was claimed by the Rybka's author Vasik Rajlich to be a clone of his engine[1]. Nevertheless, he did not provide any evidence of cloning. Also, the use of IPPOLIT was prohibited on multiple sites for chessplayers (and on the world`s largest site for chessplayers, Playchess). Even the mention of Ippolit is prohibited on the official Rybka Forum . Thereby, the discussion on IPPOLIT is still going on on numerous chess sites and forums[2][3][4]. Many chess players and programmers have demured Rajlich's statement.
See also: Rybka#IPPOLIT_controversy
References
edit- ^ http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?pid=190922
- ^ http://talkchess.com/forum/viewtopic.php?t=30237&start=20&postdays=0&postorder=asc&highlight=
- ^ http://immortal223.borda.ru/?1-17-120-00000113-000-0-0-1256211582
- ^ http://immortal223.borda.ru/?1-2-20-00000151-000-0-0-1256016371 (Russian)
Web links
edit