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'''RuyDos''',<br/>
an [[UCI]] compliant chess engine by [[Álvaro Begué]] and [[José Manuel Morán]] <ref>[https://bitbucket.org/alonamaloh/ruydos/src/88d7ffc1026339c334ee75d234a8df9e6af2ca34/LICENSE?at=default alonamaloh / RuyDos / source / LICENSE — Bitbucket]</ref>, written in [[Cpp|C++]], developed since 2013 <ref>[http://www.talkchess.com/forum/viewtopic.php?t=47268 Suggestions for a sparring partner] by [[Álvaro Begué]], [[CCC]], February 19, 2013</ref> and first published as [[:Category:Open Source|open source]] under the [[Massachusetts Institute of Technology#License|MIT License]] in June 2017 <ref>[http://www.talkchess.com/forum/viewtopic.php?t=64138 RuyDos publicly available] by [[Álvaro Begué]], [[CCC]], June 01, 2017</ref>.
=Etymology=
=Features=
==[[Board Representation]]==
* [[Bitboard Board-Definition]] <ref>[https://bitbucket.org/alonamaloh/ruydos/src/88d7ffc1026339c334ee75d234a8df9e6af2ca34/board.h?at=default alonamaloh / RuyDos / source / board.h — Bitbucket]</ref>
* [[8x8 Board]]
* [[Square Mapping Considerations|Little-Endian Rank, Big-Endian File Mapping (LERBEF)]] (h1=0, a1=7, a8=63)
* [[Magic Bitboards#Fancy|Fancy Magic Bitboards]]
==[[Search]]==
* [[Iterative Deepening]] <ref>[https://bitbucket.org/alonamaloh/ruydos/src/88d7ffc1026339c334ee75d234a8df9e6af2ca34/engine.cpp?at=default alonamaloh / RuyDos / source / engine.cpp — Bitbucket]</ref>
* [[Principal Variation Search]]
* [[Transposition Table]]
: [[History Heuristic]]
==[[Evaluation]]==
* [[Material]] <ref>[https://bitbucket.org/alonamaloh/ruydos/src/88d7ffc1026339c334ee75d234a8df9e6af2ca34/engine.cpp?at=default alonamaloh / RuyDos / source / engine.cpp — Bitbucket]</ref>
: [[Material Hash Table]]
: [[Tapered Eval]]
* [http://www.talkchess.com/forum/viewtopic.php?t=64145 RuyDos publicly available] by [[Álvaro Begué]], [[CCC]] (General Topics), June 01, 2017
* [http://www.talkchess.com/forum/viewtopic.php?t=64356 Testing endgame strength] by [[Álvaro Begué]], [[CCC]], June 21, 2017 » [[Engine Testing]]
* [http://www.talkchess.com/forum/viewtopic.php?t=64377 Fathom memory usage] by [[Álvaro Begué]], [[CCC]], June 22, 2017» 2017 » [[Syzygy Bases]] via [[Syzygy Bases#Fathom|Fathom]]
* [http://www.talkchess.com/forum/viewtopic.php?t=64383 RuyDos with support for syzygy tablebases] by [[Álvaro Begué]], [[CCC]], June 23, 2017 » [[Syzygy Bases]]
* [http://www.talkchess.com/forum/viewtopic.php?t=64402 RuyDos 1.0.13 UCI release] by [[Norbert Raimund Leisner]], [[CCC]], June 25, 2017
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=66618 RuyDos 1.1.0] by [[Álvaro Begué]], [[CCC]], February 17, 2018
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=67301 RuyDos 1.1.6] by [[Álvaro Begué]], [[CCC]], May 01, 2018
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=68692&start=8 Re: easy move?] by [[Álvaro Begué]], [[CCC]], October 19, 2018» [[Time Management]]
=External Links=
==Chess Engine==
* [https://web.archive.org/web/20180713142931/https://bitbucket.org/alonamaloh/ruydos alonamaloh / RuyDos — Bitbucket]([https://en.wikipedia.org/wiki/Wayback_Machine Wayback Machine])
* [http://www.computerchess.org.uk/ccrl/404/cgi/compare_engines.cgi?family=RuyDos&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 RuyDos] at [[CCRL|CCRL 40/4]]
* [http://www.computerchess.org.uk/ccrl/4040/cgi/compare_engines.cgi?family=RuyDos&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 RuyDos] at [[CCRL|CCRL 40/40]]
[[Category:UCI]]
[[Category:Open Source]]
[[Category:MIT]]
[[Category:X64]]
[[Category:PC]]
[[Category:Windows]]
[[Category:Linux]]
[[Category:Astronomy]]
