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[[FILE:Singer Sargent, John - Atlas and the Hesperides - 1925.jpg|border|right|thumb|[https://en.wikipedia.org/wiki/Atlas_%28mythology%29 Atlas] and the [https://en.wikipedia.org/wiki/Hesperides Hesperides] <ref>[https://commons.wikimedia.org/wiki/File:Singer_Sargent,_John_-_Atlas_and_the_Hesperides_-_1925.jpg Atlas and the Hesperides] by [[Arts#JohnSingerSargent|John Singer Sargent]], between circa 1922 and circa 1925, current location: [https://en.wikipedia.org/wiki/Museum_of_Fine_Arts,_Boston Museum of Fine Arts, Boston], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons]</ref> ]]

an early chess program written in 1967 by [[Alex Bell]] at [[Atlas Computer Laboratory]], [https://en.wikipedia.org/wiki/Chilton,_Oxfordshire Chilton]. It was basically a resurrected, cleaned up [[Algol]] version of Bell's and [[Nils Barricelli|Barricelli's]] old program from the early 60s to test evolutionary theories, which had an [[Evaluation function|evaluation function]] based purely on [[Mobility|mobility]] - at that time the first fully legal chess program to run in England <ref>[http://www.chilton-computing.org.uk/acl/applications/cocoa/p008.htm MASTER at IFIPS]. Excerpt from [[Alex Bell]] ('''1978'''). ''The Machine Plays Chess?''. [https://en.wikipedia.org/wiki/Pergamon_Press Pergamon Press], hosted by [[Atlas Computer Laboratory]] from [https://en.wikipedia.org/wiki/Rutherford_Appleton_Laboratory Rutherford Appleton Laboratory (RAL)]</ref>, and likely also the base of Barricelli's [[WCCC 1974]] entry [[Freedom]].