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Disco ball ¹

DiscoCheck, (former DoubleCheck)
a free open source engine by Lucas Braesch, released under the GNU General Public License, written in C++. DiscoCheck is UCI compatible and can be compiled for Linux, Android ¹ , Windows, and Mac OS X. It performs PVS alpha-beta with transposition table, null move pruning, LMR and various enhancements inside an iterative deepening framework with aspiration windows. DiscoCheck determines sliding piece attacks with magic bitboards, first using Pradu Kannan's implementation, later the GPL conform version by Borko Bošković as used in MinkoChess (then called Umko) ². Early versions used the author's own implementation of rotated bitboards, adapted from his earlier engine BibiChess 0.5. In June 2017, a new DiscoChess dubbed Demolito was announced, completely rewritten, featuring SMP and Chess960 ^{3 4}.

See also

• BibiChess
• Demolito
• Discovered Check
• Double Check

Forum Posts

DoubleCheck

• name for my new engine ? by Lucas Braesch, CCC, July 24, 2011
• New chess engine - DoubleCheck 1.0 (Lucas Braesch) by Graham Banks, CCC, July 28, 2011
• DoubleCheck 1.0 for Windows by Lucas Braesch, CCC, July 30, 2011
• DoubleCheck 1.2 is out by Lucas Braesch, CCC, August 11, 2011
• DoubleCheck 1.3 issues by Matthias Gemuh, CCC, August 21, 2011
• DoubleCheck 2.0 is out by Lucas Braesch, CCC, November 03, 2011
• DoubleCheck 2.1 by Lucas Braesch, CCC, November 21, 2011
• DoubleCheck 2.3 is out by Lucas Braesch, CCC, December 17, 2011
• DoubleCheck 2.7 by Lucas Braesch, CCC, March 10, 2012

DiscoCheck

• Discocheck "Boney M" is out by Lucas Braesch, CCC, June 28, 2012
• DiscoCheck 4.0.0 (release candidate) by Lucas Braesch, CCC, January 27, 2013
• DiscoCheck 4.1 released by Lucas Braesch, CCC, March 23, 2013
• DiscoCheck 4.2 by Lucas Braesch, CCC, May 21, 2013
• DiscoCheck 4.3 is out by Lucas Braesch, CCC, July 14, 2013
• DiscoCheck 5.0 released by Lucas Braesch, CCC, October 25, 2013
• DiscoCheck 5.1 by Lucas Braesch, CCC, December 08, 2013
• DiscoCheck 5.2 released by Lucas Braesch, CCC, January 11, 2014
• New DiscoCheck is cooking by Lucas Braesch, CCC, June 04, 2017
• DiscoCheck performing 200+ ELO better on ONE machine ?? by Andrew Grant, CCC, November 13, 2017

External Links

Chess Engine

• Chess Engine List from Ron Murawski's Computer-Chess Wiki
• Index of /chess/engines/Jim Ablett/DISCOCHECK compiled by Jim Ablett, hosted by Kirill Kryukov
• Index of /chess/engines/Jim Ablett/+++ LINUX ENGINES ++/64 BIT/discocheck compiled by Jim Ablett, hosted by Kirill Kryukov
• DiscoCheck at CCRL 40/15

Misc

• Disco (disambiguation) from Wikipedia
• Frank Zappa - Disco Boy, YouTube Video

lineup: Frank Zappa, Adrian Belew, Tommy Mars, Peter Wolf, Patrick O'Hearn, Terry Bozzio, Ed Mann

Watch on YouTube

References