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an early [https://en.wikipedia.org/wiki/Microprocessor microprocessor] chess program written in 1977/78 by [[Stephen Stuart]] in [[Assembly]] for a home-made metal-box computer system <ref>[[Rob van Son]] ('''2011'''). ''De Assyrische krijgsman die vaak won!'' (Dutch) [http://www.schaakcomputers.nl/hein_veldhuis/database/files/10-2011,%20Rob%20van%20Son,%20De%20Assyrische%20krijgsman%20die%20vaak%20won.pdf pdf] hosted by [[Hein Veldhuis]]</ref> with a [https://en.wikipedia.org/wiki/Signetics_2650 Signetics 2650] processor. Stuart was challenged for a microcomputer chess program by an [https://en.wikipedia.org/wiki/Amdahl_Corporation Amdahl] engineer to the Amdahl Computer Club, where he was member <ref>[[Stephen Stuart]] ('''1977'''). ''Letter''. in [[Douglas Penrod]] (ed.) ('''1977'''). ''[https://www.computerhistory.org/chess/doc-431614f6d6b8e/ Computer Chess Newsletter, Issue 2]''. hosted by [[The Computer History Museum]], Courtesy of [[Peter Jennings]], Letter of [[Stephen Stuart]] pg. 12</ref>. Steve Stuart Chess played the [[MCCT 1978|Second West Coast Computer Faire Microcomputer Chess Tournament]] in March 1978 in the "less than 8K of memory class b" <ref>[[Larry Wagner]] ('''1978'''). ''Results of First Microcomputer Chess Tournament''. [http://www.computerhistory.org/collections/accession/102686281 Silicon Gulch Gazette], Vol. 2, No. 4, May 10, 1978, pg. 9</ref>.