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'''[[Main Page|Home]] * [[Engines]] * RubiChess'''
[[FILE:Macrothylacia rubi male, veelvraat mannetje.jpg|border|right|thumb| Macrothylacia rubi <ref>[https://en.wikipedia.org/wiki/Macrothylacia_rubi Macrothylacia rubi], male, [https://commons.wikimedia.org/wiki/File:Macrothylacia_rubi_male,_veelvraat_mannetje.jpg Image] by [https://commons.wikimedia.org/wiki/User:Rasbak Rasbak], May 11, 2011, [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]] '''RubiChess''',<br/>
an [[UCI]] compliant [[:Category:Open Source|open source chess engine]] by [[Andreas Matthies]], written in [[Cpp|C++]], licensed under the [[Free Software Foundation#GPL|GPL v3.0]].
RubiChess started in 2017 as [[0x88]] engine and soon evolved to a [[Bitboards|bitboard]] engine first using [[Rotated Bitboards|rotated bitboards]] and subsequently [[Magic Bitboards|magic bitboards]] (about 24% faster) to determine [[Sliding Piece Attacks|sliding piece attacks]] <ref>[https://github.com/Matthies/RubiChess/blob/master/ChangeLog.txt RubiChess/ChangeLog.txt at master · Matthies/RubiChess · GitHub]</ref>. In September 2020, Andreas Matthies announced RubiChess [[NNUE]] <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=75016 RubiChess NNUE player implemented] by [[Andreas Matthies]], [[CCC]], September 06, 2020</ref>.
=Features=
** [[History Heuristic#CMHist|Counter Moves History]]
==[[Evaluation]]==
* [[NNUE]] (RubiChess NNUE)
* [[Texel's Tuning Method]]
* [[Tapered Eval]]
* [[Hanging Piece|Hanging Pieces]]
* [[Pin|Pinned Pieces]]
* [[Pawn Structure]]
** [[Duo Trio Quart (Bitboards)|Phalanx]]
=Forum Posts=
==2018 ...==
* [http://talkchess.com/forum3/viewtopic.php?f=2&t=67594 RubiChess 0.9 is out] by [[Andreas Matthies]], [[CCC]], May 29, 2018
* [http://talkchess.com/forum3/viewtopic.php?t=68559 RubiChess 1.1] by [[Andreas Matthies]], [[CCC]], October 03, 2018
* [http://talkchess.com/forum3/viewtopic.php?t=69876 RubiChess 1.3] by [[Andreas Matthies]], [[CCC]], February 11, 2019
* [http://talkchess.com/forum3/viewtopic.php?f=2&t=70878 Rubichess 1.4] by [[Ferdinand Mosca]], [[CCC]], May 31, 2019
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=69754&start=369 Re: New engine releases 2019] by [[Andreas Matthies]], [[CCC]], October 17, 2019
==2020 ...==
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=74828&start=5 Re: Orion 0.7 : NNUE experiment] by [[Andreas Matthies]], [[CCC]], August 21, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=75016 RubiChess NNUE player implemented] by [[Andreas Matthies]], [[CCC]], September 06, 2020
: [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=75016&start=64 Re: RubiChess NNUE player implemented] by [[Andreas Matthies]], [[CCC]], November 01, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=76209&start=225 Re: New engine releases & news 2021] by [[Andreas Matthies]], [[CCC]], April 14, 2021
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=77157 Rubichess NN questions] by [[Jon Dart]], [[CCC]], April 23, 2021 » [[NNUE]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=77503&start=55 Re: will Tcec allow Stockfish with a Leela net to play?] by [[Connor McMonigle]], [[CCC]], June 17, 2021 » [[NNUE]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=77665 RubiChess 2.2] by Boban Stanojević, [[CCC]], July 07, 2021
=External Links=
==Chess Engine==
* [https://github.com/Matthies/RubiChess GitHub - Matthies/RubiChess: Another chess engine]
: [https://github.com/Matthies/NN GitHub - Matthies/NN]
* [http://ccrl.chessdom.com/ccrl/4040/cgi/compare_engines.cgi?family=RubiChess&print=Rating+list&print=Results+table&print=LOS+table&print=Ponder+hit+table&print=Eval+difference+table&print=Comopp+gamenum+table&print=Overlap+table&print=Score+with+common+opponents RubiChess] in [[CCRL|CCRL 40/40]]
==Misc==
* [https://en.wiktionary.org/wiki/rubi rubi - Wiktionary]
* [https://en.wikipedia.org/wiki/Rub%C3%AD Rubí from Wikipedia]
* [https://en.wikipedia.org/wiki/Rub%C3%AD_Rodr%C3%ADguez Rubí Rodríguez from Wikipedia] » [[Mathematician#RRodriguez|Rubí Rodríguez]]
* [https://en.wikipedia.org/wiki/Rub%C3%AD,_Barcelona Rubí, Barcelona from Wikipedia]
* [https://en.wikipedia.org/wiki/Ruby Ruby from Wikipedia]
* [https://en.wikipedia.org/wiki/Ruby_(disambiguation) Ruby (disambiguation) from Wikipedia]
* [https://en.wikipedia.org/wiki/Ruby_character Ruby character from Wikipedia]
* [https://deen.wikipedia.org/wiki/Rubi Rubi – Ruby_(programming_language) Ruby (programming language) from Wikipedia] » [[Ruby]]* [[:Category:The Rolling Stones|The Rolling Stones]] - [https://en.wikipedia.de] org/wiki/Ruby_Tuesday_(Germansong)Ruby Tuesday], Official 1991, [https://en.wikipedia.org/wiki/YouTube YouTube] Video: {{#evu:https://www.youtube.com/watch?v=fvp6gseKJS8|alignment=left|valignment=top}}
=References=
[[Category:GPL]]
[[Category:UCI]]
[[Category:PC]]
[[Category:Linux]]
[[Category:Windows]]
[[Category:X64]]
[[Category:NNUE]]
[[Category:OpenBench]]
[[Category:Arthropod]]
[[Category:Chess Suffix]]
[[Category:Geography]]
[[Category:Given Name]]
[[Category:The Rolling Stones]]
