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[[FILE:Eugène Ferdinand Victor Delacroix 036.jpg|border|right|thumb| [[Arts#:Category:Eugène Delacroix|Eugène Delacroix]] - [https://en.wikipedia.org/wiki/Chiron Chiron] instructing [https://en.wikipedia.org/wiki/Achilles Achilles] <ref>[https://en.wikipedia.org/wiki/Chiron Chiron], half man, half horse: instructing [https://en.wikipedia.org/wiki/Achilles Achilles], The Education of Achilles, by [[Arts#:Category:Eugène Delacroix|Eugène Delacroix]], 2nd third of 19th century, [https://en.wikipedia.org/wiki/Palais_Bourbon Palais Bourbon], [https://en.wikipedia.org/wiki/Liminal_being Liminal being from Wikipedia]</ref> ]]

a commercial chess engine by [[Ubaldo Andrea Farina]], supporting both the [[Chess Engine Communication Protocol]] and [[UCI]], the [[PolyGlot]] and [[CTG]] <ref>[http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=2319 CTG specification] by [[Steinar H. Gunderson|Sesse]], [[Computer Chess Forums|Rybka Forum]], September 30, 2007</ref> [[Opening Book#Formats|opening book formats]], various [[Endgame Tablebases|endgame tablebase]] and [[Endgame Bitbases|bitbase]] formats, and able to play [[Chess960]]. The development started in 2002 and it has been under continuous development, underwent a major rewrite in 2009 using [[Bitboards|bitboards]], and has been commercially released in October 2011 <ref>[http://www.talkchess.com/forum/viewtopic.php?t=40529 Chiron 1.0 available for preorder] by [[Ubaldo Andrea Farina]], [[CCC]], September 26, 2011</ref> . Chiron applies [[Parallel Search|parallel search]] on [https://en.wikipedia.org/wiki/Multiprocessor multiprocessor] systems, and has implemented [[Blockage Detection|pawn blockage detection]] function <ref>[[Eli David|Omid David]], [[Ariel Felner]], [[Nathan S. Netanyahu]] ('''2004'''). ''Blockage Detection in Pawn Endgames''. [[ICGA Journal#27_3|ICGA Journal, Vol. 27, No. 3]]</ref> <ref>[[Eli David|Omid David]], [[Ariel Felner]], [[Nathan S. Netanyahu]] ('''2004'''). ''[http://link.springer.com/chapter/10.1007/11674399_13 Blockage Detection in Pawn Endings]''. [[CG 2004]]</ref>, improved to detect blockages not only in [[Pawn Endgame|pawn endgame]] but also when there are a few pieces on the board <ref>[http://www.chironchess.com/index.php/component/content/article/69 .:: Chiron Chess Engine ::.: | Pawn Blockages]</ref> <ref>[http://www.talkchess.com/forum/viewtopic.php?t=40748 Code of Chiron for Detection of Pawn Blockages] by [[Ubaldo Andrea Farina]], [[CCC]], October 13, 2011</ref> <ref>[http://www.talkchess.com/forum/viewtopic.php?t=41569 Chiron 1.1 bug?] by [[Richard Vida]], [[CCC]], December 24, 2011</ref>. Chiron is available as [[Windows]] and [[Android]] version.

In these nine years Chiron has improved a lot thanks also to ideas found in strong [[:Category:Open Source Engines||open source engines]], in [[Computer Chess Forums|computer chess forums]] and websites, etc. In particular I would like to thank [[Fabien Letouzey]], [[Tord Romstad]], [[Robert Hyatt]], the [[Ippolit]] guys, [[Ed Schroder|Ed Schröder]], [[Bruce Moreland]], [[Ernst A. Heinz|Ernst Heinz]] and many others. Thanks to [[Miguel A. Ballicora|Miguel Ballicora]], [[Eugene Nalimov]] and [[Daniel Shawul]] for the probing code of their [[Endgame Tablebases|tablebases]]/[[Endgame Bitbases|bitbases]], to [[Pradu Kannan]], [[Gerd Isenberg]] and [[Lasse Hansen]] for the [[Magic Bitboards|magic bitboards]], to [[Steinar H. Gunderson|Sesse]] and [[Stephan Vermeire]] for the [[CTG|CTG specifications]], to [[Ilari Pihlajisto]] for [[Cutechess-cli|cutechess-cli]] that I've been using since 2009 for testing Chiron with very fast games. Thanks to all the people that tested Chiron in the past, among them [[Ciro Luigi Vignotto|Ciro Vignotto]], [[Leo Dijksman]], [[Olivier Deville]], [[Günther Simon]], [[Lars Hallerström]], the testers of [[CEGT]] and [[CCRL]] and many others. Thanks to [[Wilhelm Hudetz]] for the Chiron logo. Finally, thanks to [[Salvo Spitaleri]] who has been the [[:Category:Opening Book AuthorsAuthor|opening book author]] of Chiron since 2006.