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'''LogiChess''', <br/>
the first chess program by [[Kaare Danielsen]] developed in 1981 for an [[Intel]] [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 K Kibi 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 MHz. 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>.
