Changes

Due to the disputed [[:Category:Open Source Engines|open source engines]] [[Strelka|Strelka 2.0]] and later [[Ippolit]], which accordant to Vasik Rajlich were both based on or heavily influenced by re-engineered Rybka executables <ref>[http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=3006 Strelka 2.0] by [[Vasik Rajlich]], [[Computer Chess Forums|Rybka Forum]], January 11, 2008</ref> <ref>[http://www.talkchess.com/forum/viewtopic.php?t=34908 My recent correspondence with Vasik Rajlich] by [[Sven Schüle]], [[CCC]], June 13, 2010</ref> , other implementation details were released to the public, such as [[Material Tables|material-]] and material imbalance tables, aggressive [[Late Move Reductions|LMR]], [[Razoring|razoring]] <ref>[http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=3006;pg=4 Re: Strelka 2.0 pg 4] by [[Anthony Cozzie]], [[Computer Chess Forums|Rybka Forum]], January 11, 2008</ref> and some variation of [[Singular Extensions|singular extensions]] <ref>[http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=14574 A question to Larry Kaufman], by Erik, [[Computer Chess Forums|Rybka Forum]], December 30/31, 2009</ref> . [[Zach Wegner]] elaborated on [[Evaluation|evaluation]] issues, and compared ''Rybka 1 beta'' with [[Fruit|Fruit's]] evaluation <ref>[http://www.open-chess.org/viewtopic.php?f=3&t=301#p2658 Re: What do you folks make of this ?] by [[Chris Whittington]], [[Computer Chess Forums|OpenChess Forum]], June 27, 2010</ref> , continued by former anonymous author "BB+" alias [[Mark Watkins]] in February 2011 <ref>[[Mark Watkins]] ('''2011'''). ''A comparison of Rybka 1.0 Beta and Fruit 2.1'', [http://www.open-chess.org/download/file.php?id=304 pdf, February 24, 2011 Version]</ref> .

The appearance of the [[Ippolit]] [[:Category:Open Source Engines|open source program]] by pseudonymous authors in May 2009, and Rajlich's claim it is a [[Clones|clone]] of ''Rybka 3'' <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> without any substantiation and evidence, caused further discussions <ref>[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</ref> .