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'''Twisted Logic''',<br/>
an [[UCI]] compliant chess engine written by [[Edsel Apostol]] in [[C]]. Twisted Logic was first released in August 2005 <ref>[http://www.open-aurec.com/wbforum/viewtopic.php?f=2&t=3270&p=16194 Twisted Logic Chess Engine v0.001 released!] by [[Edsel Apostol]], [[Computer Chess Forums|Winboard Forum]], August 11, 2005</ref> and over time increased in strength from about 1600 to 2650 [[UEL|RUEL]].
An early 2007 version is available as [[:Category:Open Source|open source]] licensed under the [[Free Software Foundation#GPL|GNU GPL]] <ref> [https://github.com/ed-apostol/TwistedLogic Early version of Twisted Logic chess engine from 2007]</ref>. It is a clearly written didactic [[Bitboards|bitboard]] engine, with rudimentary [[Search|search]] and [[Evaluation|evaluation]], and was base of later Twisted Logic versions as well for [[Hannibal]]. =Tournament Play=Twisted Logic played the [[WCRCC 2008]] and [[WCRCC 2009]], as well the [[CCT10]] and [[CCT11]], and over the board the Italian [[CCC 2009]].
=Features=
