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==Chess Programs==
[[FILE:Chess_4.6_electronic_board_ACM1978.jpg|border|right|thumb|350px|link=http://archive.computerhistory.org/projects/chess/related_materials/physical-object/3-1%20and%203-3.Chess_4.6_electronic_board_ACM_9_NACCC_Washington_1978_10264526.NEWBORN.jpg|[[Chess (Program)|Chess 4.6]] [[Chess (Program)#Chesstor|Chesstor]], [[ACM 1978]] <ref>[http://archive.computerhistory.org/projects/chess/related_materials/physical-object/ Chess 4.6 electronic board] at [[ACM 1978]], Courtesy of [[Monroe Newborn]], [[The Computer History Museum]]</ref> ]]
Most prominent chess program running on CDC Cyber 70/170 was [[Northwestern University|Northwestern University's]] [[Chess (Program)|Chess 4.x]], supported by CDC Cyber hardware consultant [[David Cahlander]]. Already at the [[WCCC 1974]], with Chess still running on a [[CDC 6600]], [[Nils Barricelli|Nils Barricelli's]] [[Freedom]] ran on a Cyber 74. At [[ACM 1975]], with [[Iron Fish]] on a Cyber 74, Chess 4.4 already ran on a Cyber 175 <ref>[[Monroe Newborn|Monty Newborn]] ('''1977'''). ''[http://www.atariarchives.org/bcc2/showpage.php?page=22 Summary of the ACM Sixth U.S. Computer Chess Championship]''. [[Creative Computing#Best2|The Best of Creative Computing Volume 2]], edited by [https://en.wikipedia.org/wiki/David_H._Ahl David Ahl], hosted by [http://www.atariarchives.org/ AtariArchives.org]
</ref>, Chess 4.5 at [[ACM 1976]], Chess 4.6 at [[ACM 1977]], Chess 4.7 at [[ACM 1978]], also playing the [[Levy versus Chess 1978|Levy match]], and Chess 4.9 at [[ACM 1979]] all ran on a 60-bit Cyber 176 <ref>[[Ben Mittman]], [[Monroe Newborn]] ('''1980'''). ''[http://dl.acm.org/citation.cfm?id=358817&dl=ACM&coll=DL&CFID=78577980&CFTOKEN=10389697 Computer chess at ACM 79: the tournament and the man vs. man and machine match]''. [[ACM#Communications|Communications of the ACM]], Vol. 23, Issue 1, [http://archive.computerhistory.org/projects/chess/related_materials/text/3-1%20and%203-2%20and%203-3.Computer_chess_at_ACM_79/3-1%20and%203-2%20and%203-3.Computer_chess_at_ACM_79.062303018.pdf pdf] from [[The Computer History Museum]]</ref>. [[Martin Bryant|Martin Bryant's]] first chess program, [[White Knight]], written in [[Pascal]], was compiled to ran on a Cyber 72 <ref>[[Tony Harrington]] ('''1983'''). ''University Challenge - Martin Bryant and White Knight''. [https://en.wikipedia.org/wiki/Personal_Computer_World Personal Computer World], [http://www.chesscomputeruk.com/html/publication_archive_1983.html August 1983], [http://www.chesscomputeruk.com/PCW_August_1983.pdf pdf] hosted by [[Mike Watters]]</ref>. [[Nuchess]] played the [[WCCC 1980]] on Cyber 176, so did the Austrian [[Merlin]] at the [[International Computer Chess Tournament 1984]]. [[Chat]] played the [[WCCC 1986]] on a Cyber 175.
* [[Chat]]
