DanChess

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DanChess, a chess engine by Daniel Shawul written in C++, compliant to the Chess Engine Communication Protocol. DanChess uses a hybrid mailbox and bitboards board representation, utilizes attack tables, and is able to probe Nalimov Tablebases. DanChess had its tournament debut in 2005, playing a strong CCT7, but was soon superseeded by its successor Scorpio.

=Controversy= During forum discussions about early DanChess versions and the definition of clones, Robert Hyatt pointed out DanChess had various pre-initialized tables as used in Crafty and a quite similar SEE swap implementation , the latter also mentioned as extremely similar by Dann Corbit, who as a kind of ombudsman inspected DanChess' source code concluding it "clean" otherwise, and disagreed with Hyatt about both the spirit and the extent of whether or not DanChess is a Crafty clone. However, all controversial tracks were later removed in subsequent versions, version 1.04 was published as open source.

=Forum Posts=
 * WBEC-Ridderkerk new results + first chess engine from Ethiop by Leo Dijksman, Winboard Forum, August 29, 2003
 * New version of DanChess 1.02 8x faster by Daniel Shawul, Winboard Forum, November 23, 2003
 * crafty clone? by Daniel Shawul, Winboard Forum, November 28, 2003
 * Danchess taken out suspected clone of ... by Daniel Shawul, Winboard Forum, January 28, 2004
 * definition of clones: Danchess and Crafty by Uri Blass, CCC, February 15, 2004
 * Robert Hyatt about Danchess and Crafty (in CCC) by Matthias Gemuh, Winboard Forum, February 15, 2004
 * Re: WBEC Ridderkerk new results by Dann Corbit, Winboard Forum, February 15, 2004
 * DanChess accusation solved! by Daniel Shawul, Winboard Forum, February 24, 2004
 * DanChess with source code by Dann Corbit, Winboard Forum, March 01, 2004
 * DanChess 1.05 released! by Daniel Shawul, Winboard Forum, June 07, 2004
 * DanChess 1.06 by Daniel Shawul, Winboard Forum, July 13, 2004
 * DanChess SMP beta available by Daniel Shawul, Winboard Forum, December 24, 2004
 * About DanChess in cct7 by Daniel Shawul, CCC, February 07, 2005

=External Links=
 * BayesianElo Ratinglist Edition 15 of WBEC Ridderkerk - DanChess

=References=

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