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'''LogiChess''', <br/>
the first chess program by [[Kaare Danielsen]] developed in 1981 for an the [[IntelZ80]] [https://en.wikipedia.org/wiki/Intel_MCS-48 8048] compatible 80C50 [https://en.wikipedia.org/wiki/CMOS CMOS] [https://en.wikipedia.org/wiki/Microcontroller microcontroller] with 4 KiB internal [[Memory#ROM|EPROM]] and only 256 byte internal [[Memory#RAM|RAM]], and a [https://en.wikipedia.org/wiki/Clock_rate clock frequency] of 3.6 resp. 7.2 MHzprocessor. It competed at the [[European MCC 1981|2nd European MCC 1981]] (3rd place) <ref>Logichess by the 17-year-old Danish schoolboy [[Kaare Danielsen]] was 3rd, from
[http://www.chesscomputeruk.com/html/chess_computers_-_the_uk_story.html Chess Computers - The UK Story] from [http://www.chesscomputeruk.com/index.html Chess Computer UK] by [[Mike Watters]]</ref> and two [[World Microcomputer Chess Championship|World Microcomputer Chess Championships]] in [[WMCCC 1981|1981]] and [[WMCCC 1983|1983]], at times supported by [[Hartvig Ekner]] <ref>[[Frederic Friedel]] ('''1984'''). ''Move from the East''. Report of the WMCCC 1983, [[Personal Computer World]], January 1984</ref>.
=SciSys & CXG=
As 4K [[Dedicated Chess Computers|dedicated chess computer]], LogiChess was ported to the [[6800]] instruction set compatible [https://en.wikipedia.org/wiki/Hitachi_Ltd. Hitachi] [[6800#6301|HD6301V1]] and Newcrest 6301 8-bit controllers. It was sold in approximately 200.000 units <ref>[http://www.danielsen.com/resume.shtml Resume for Kaare Danielsen]</ref> from [[Saitek|SciSys]] as [[SciSys Explorer]], [[SciSys Explorer#Concord|SciSys Concord II]] and [[SciSys Explorer#Companion|SciSys Companion II]], and from [https://en.wikipedia.org/wiki/RadioShack RadioShack] as ''Tandy 1650'' <ref>[http://www.schach-computer.info/wiki/index.php/Tandy_1650 Tandy 1650] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki]</ref>. Another 4K branch was realized for [[Newcrest Technology]], for the [[6800]] instruction set compatible [https://en.wikipedia.org/wiki/Hitachi_Ltd. Hitachi] [[6800#6301|HD6301V1]] 8-bit controller for the [[CXG Sensor Computachess#III|CXG Computachess III]] in 1984 <ref>[httphttps://www.schach-computer.info/wiki/index.php/CXG_Computachess_III CXG Computachess III6301V 6301V] from [httphttps://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki] (German)</ref>branch was realized for [[Newcrest Technology]], as well for the Newcrest 6301V [[CXG Sensor Computachess#III|CXG Computachess III]] in 1984 <ref>[http://www.schach-computer.info/wiki/index.php/6301V 6301VCXG_Computachess_III CXG Computachess III] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki](German)</ref> , as well inside the [[CXG Star Chess]] of 1985 <ref>[http://www.schach-computer.info/wiki/index.php/CXG_Star_Chess CXG Star Chess] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki]</ref> <ref>[http://www.schach-computer.info/wiki/index.php/Danielsen,_Kaare Danielsen, Kaare] from [http://www.schach-computer.info/wiki/index.php/Hauptseite_En Schachcomputer.info Wiki]</ref>. According to its author, LogiChess is still the strongest 4K chess computer in the world <ref>[http://www.danielsen.com/resume.shtml Resume for Kaare Danielsen]</ref>.
=Lexibook=
=References=
<references />
'''[[Engines|Up one level]]'''
[[Category:Chess Suffix]]
[[Category:Z80]]
[[Category:6800]]
