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Created page with "'''Home * Engines * DiscoCheck''' [[FILE:Disco ball4.jpg|border|right|thumb| Disco ball <ref>[https://en.wikipedia.org/wiki/Disco_ball Disco ball], [https:/..."
'''[[Main Page|Home]] * [[Engines]] * DiscoCheck'''
[[FILE:Disco ball4.jpg|border|right|thumb| Disco ball <ref>[https://en.wikipedia.org/wiki/Disco_ball Disco ball], [https://commons.wikimedia.org/wiki/File:Disco_ball4.jpg Image] by [https://www.flickr.com/people/8978957@N07?rb=1 Sarah], February 24, 2010, [https://creativecommons.org/licenses/by/2.0/deed.en CC BY 2.0], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''DiscoCheck''', (former DoubleCheck)<br/>
a free [[:Category:Open Source|open source engine]] by Lucas Braesch, released under the [[Free Software Foundation#GPL|GNU General Public License]], written in [[Cpp|C++]].
DiscoCheck is [[UCI]] compatible and can be compiled for [[Linux]], [[Android]] <ref>[http://www.aartbik.com/MISC/eng.html UCI and XBoard Engines for Android] maintained by [[Aart Bik]]</ref> , [[Windows]], and [[Mac OS|Mac OS X]].
It performs [[Principal Variation Search|PVS]] [[Alpha-Beta|alpha-beta]] with [[Transposition Table|transposition table]], [[Null Move Pruning|null move pruning]], [[Late Move Reductions|LMR]] and various enhancements inside an [[Iterative Deepening|iterative deepening]] framework with [[Aspiration Windows|aspiration windows]].
DiscoCheck determines [[Sliding Piece Attacks|sliding piece attacks]] with [[Magic Bitboards|magic bitboards]], first using [[Pradu Kannan|Pradu Kannan's]] implementation, later the GPL conform version by [[Borko Bošković]] as used in [[MinkoChess]] (then called Umko)
<ref>[http://wbec-ridderkerk.nl/html/details1/DoubleCheck.html Double/DiscoCheck] from [[WBEC|WBEC Ridderkerk]]</ref>.
Early versions used the author's own implementation of [[Rotated Bitboards|rotated bitboards]], adapted from his earlier engine [[BibiChess|BibiChess 0.5]]. In June 2017, a new DiscoChess dubbed [[Demolito]] was announced, completely rewritten, featuring [[Parallel Search|SMP]] and [[Chess960]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=64173 New DiscoCheck is cooking] by Lucas Braesch, [[CCC]], June 04, 2017</ref>
<ref>[https://github.com/lucasart/Demolito GitHub - lucasart/Demolito: UCI Chess Engine]</ref>.
=See also=
* [[BibiChess]]
* [[Demolito]]
* [[Discovered Check]]
* [[Double Check]]
=Forum Posts=
* [http://www.talkchess.com/forum/viewtopic.php?t=44225 Discocheck "Boney M" is out] by Lucas Braesch, [[CCC]], June 28, 2012
* [http://www.talkchess.com/forum/viewtopic.php?t=47009 DiscoCheck 4.0.0 (release candidate)] by Lucas Braesch, [[CCC]], January 27, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=47582 DiscoCheck 4.1 released] by Lucas Braesch, [[CCC]], March 23, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=48071 DiscoCheck 4.2] by Lucas Braesch, [[CCC]], May 21, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=48638 DiscoCheck 4.3 is out] by Lucas Braesch, [[CCC]], July 14, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=49828 DiscoCheck 5.0 released] by Lucas Braesch, [[CCC]], October 25, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=50380 DiscoCheck 5.1] by Lucas Braesch, [[CCC]], December 08, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=50861 DiscoCheck 5.2 released] by Lucas Braesch, [[CCC]], January 11, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=64173 New DiscoCheck is cooking] by Lucas Braesch, [[CCC]], June 04, 2017
* [http://www.talkchess.com/forum3/viewtopic.php?t=65716 DiscoCheck performing 200+ ELO better on ONE machine ??] by [[Andrew Grant]], [[CCC]], November 13, 2017
=External Links=
==Chess Engine==
* [http://computer-chess.org/doku.php?id=computer_chess:wiki:lists:chess_engine_list Chess Engine List] from [[Ron Murawski|Ron Murawski's]] [http://computer-chess.org/doku.php?id=home Computer-Chess Wiki]
* [http://kirr.homeunix.org/chess/engines/Jim%20Ablett/DISCOCHECK/ Index of /chess/engines/Jim Ablett/DISCOCHECK] compiled by [[Jim Ablett]], hosted by [[Kirill Kryukov]]
* [http://kirr.homeunix.org/chess/engines/Jim%20Ablett/+++%20LINUX%20ENGINES%20++/64%20BIT/discocheck/ Index of /chess/engines/Jim Ablett/+++ LINUX ENGINES ++/64 BIT/discocheck] compiled by [[Jim Ablett]], hosted by [[Kirill Kryukov]]
* [http://www.computerchess.org.uk/ccrl/4040/cgi/compare_engines.cgi?family=DiscoCheck&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 DiscoCheck] at [[CCRL|CCRL 40/15]]
==Misc==
* [https://en.wikipedia.org/wiki/Disco_%28disambiguation%29 Disco (disambiguation) from Wikipedia]
* [[:Category:Frank Zappa|Frank Zappa]] - [https://en.wikipedia.org/wiki/Disco_Boy Disco Boy], [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: lineup: [[:Category:Frank Zappa|Frank Zappa]], [[:Category:Adrian Belew|Adrian Belew]], [https://en.wikipedia.org/wiki/Tommy_Mars Tommy Mars], [https://en.wikipedia.org/wiki/Peter_Wolf_%28producer%29 Peter Wolf], [https://en.wikipedia.org/wiki/Patrick_O%27Hearn Patrick O'Hearn], [[:Category:Terry Bozzio|Terry Bozzio]], [https://en.wikipedia.org/wiki/Ed_Mann Ed Mann]
: {{#evu:https://www.youtube.com/watch?v=PLTOc2TVAs8|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:Open Source]]
[[Category:GPL]]
[[Category:UCI]]
[[Category:Chess960]]
[[Category:X86]]
[[Category:X64]]
[[Category:PC]]
[[Category:Android]]
[[Category:Linux]]
[[Category:Mac]]
[[Category:Windows]]
[[Category:Frank Zappa]]
[[Category:Adrian Belew]]
[[Category:Terry Bozzio]]
[[FILE:Disco ball4.jpg|border|right|thumb| Disco ball <ref>[https://en.wikipedia.org/wiki/Disco_ball Disco ball], [https://commons.wikimedia.org/wiki/File:Disco_ball4.jpg Image] by [https://www.flickr.com/people/8978957@N07?rb=1 Sarah], February 24, 2010, [https://creativecommons.org/licenses/by/2.0/deed.en CC BY 2.0], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]
'''DiscoCheck''', (former DoubleCheck)<br/>
a free [[:Category:Open Source|open source engine]] by Lucas Braesch, released under the [[Free Software Foundation#GPL|GNU General Public License]], written in [[Cpp|C++]].
DiscoCheck is [[UCI]] compatible and can be compiled for [[Linux]], [[Android]] <ref>[http://www.aartbik.com/MISC/eng.html UCI and XBoard Engines for Android] maintained by [[Aart Bik]]</ref> , [[Windows]], and [[Mac OS|Mac OS X]].
It performs [[Principal Variation Search|PVS]] [[Alpha-Beta|alpha-beta]] with [[Transposition Table|transposition table]], [[Null Move Pruning|null move pruning]], [[Late Move Reductions|LMR]] and various enhancements inside an [[Iterative Deepening|iterative deepening]] framework with [[Aspiration Windows|aspiration windows]].
DiscoCheck determines [[Sliding Piece Attacks|sliding piece attacks]] with [[Magic Bitboards|magic bitboards]], first using [[Pradu Kannan|Pradu Kannan's]] implementation, later the GPL conform version by [[Borko Bošković]] as used in [[MinkoChess]] (then called Umko)
<ref>[http://wbec-ridderkerk.nl/html/details1/DoubleCheck.html Double/DiscoCheck] from [[WBEC|WBEC Ridderkerk]]</ref>.
Early versions used the author's own implementation of [[Rotated Bitboards|rotated bitboards]], adapted from his earlier engine [[BibiChess|BibiChess 0.5]]. In June 2017, a new DiscoChess dubbed [[Demolito]] was announced, completely rewritten, featuring [[Parallel Search|SMP]] and [[Chess960]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=64173 New DiscoCheck is cooking] by Lucas Braesch, [[CCC]], June 04, 2017</ref>
<ref>[https://github.com/lucasart/Demolito GitHub - lucasart/Demolito: UCI Chess Engine]</ref>.
=See also=
* [[BibiChess]]
* [[Demolito]]
* [[Discovered Check]]
* [[Double Check]]
=Forum Posts=
* [http://www.talkchess.com/forum/viewtopic.php?t=44225 Discocheck "Boney M" is out] by Lucas Braesch, [[CCC]], June 28, 2012
* [http://www.talkchess.com/forum/viewtopic.php?t=47009 DiscoCheck 4.0.0 (release candidate)] by Lucas Braesch, [[CCC]], January 27, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=47582 DiscoCheck 4.1 released] by Lucas Braesch, [[CCC]], March 23, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=48071 DiscoCheck 4.2] by Lucas Braesch, [[CCC]], May 21, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=48638 DiscoCheck 4.3 is out] by Lucas Braesch, [[CCC]], July 14, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=49828 DiscoCheck 5.0 released] by Lucas Braesch, [[CCC]], October 25, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=50380 DiscoCheck 5.1] by Lucas Braesch, [[CCC]], December 08, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=50861 DiscoCheck 5.2 released] by Lucas Braesch, [[CCC]], January 11, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=64173 New DiscoCheck is cooking] by Lucas Braesch, [[CCC]], June 04, 2017
* [http://www.talkchess.com/forum3/viewtopic.php?t=65716 DiscoCheck performing 200+ ELO better on ONE machine ??] by [[Andrew Grant]], [[CCC]], November 13, 2017
=External Links=
==Chess Engine==
* [http://computer-chess.org/doku.php?id=computer_chess:wiki:lists:chess_engine_list Chess Engine List] from [[Ron Murawski|Ron Murawski's]] [http://computer-chess.org/doku.php?id=home Computer-Chess Wiki]
* [http://kirr.homeunix.org/chess/engines/Jim%20Ablett/DISCOCHECK/ Index of /chess/engines/Jim Ablett/DISCOCHECK] compiled by [[Jim Ablett]], hosted by [[Kirill Kryukov]]
* [http://kirr.homeunix.org/chess/engines/Jim%20Ablett/+++%20LINUX%20ENGINES%20++/64%20BIT/discocheck/ Index of /chess/engines/Jim Ablett/+++ LINUX ENGINES ++/64 BIT/discocheck] compiled by [[Jim Ablett]], hosted by [[Kirill Kryukov]]
* [http://www.computerchess.org.uk/ccrl/4040/cgi/compare_engines.cgi?family=DiscoCheck&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 DiscoCheck] at [[CCRL|CCRL 40/15]]
==Misc==
* [https://en.wikipedia.org/wiki/Disco_%28disambiguation%29 Disco (disambiguation) from Wikipedia]
* [[:Category:Frank Zappa|Frank Zappa]] - [https://en.wikipedia.org/wiki/Disco_Boy Disco Boy], [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: lineup: [[:Category:Frank Zappa|Frank Zappa]], [[:Category:Adrian Belew|Adrian Belew]], [https://en.wikipedia.org/wiki/Tommy_Mars Tommy Mars], [https://en.wikipedia.org/wiki/Peter_Wolf_%28producer%29 Peter Wolf], [https://en.wikipedia.org/wiki/Patrick_O%27Hearn Patrick O'Hearn], [[:Category:Terry Bozzio|Terry Bozzio]], [https://en.wikipedia.org/wiki/Ed_Mann Ed Mann]
: {{#evu:https://www.youtube.com/watch?v=PLTOc2TVAs8|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:Open Source]]
[[Category:GPL]]
[[Category:UCI]]
[[Category:Chess960]]
[[Category:X86]]
[[Category:X64]]
[[Category:PC]]
[[Category:Android]]
[[Category:Linux]]
[[Category:Mac]]
[[Category:Windows]]
[[Category:Frank Zappa]]
[[Category:Adrian Belew]]
[[Category:Terry Bozzio]]
