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Cube

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Created page with "'''Home * Engines * Cube''' [[FILE:Hexahedron.gif|border|right|thumb|Cube <ref>A rotating [https://en.wikipedia.org/wiki/Hexahedron hexahedron] (cube). [htt..."
'''[[Main Page|Home]] * [[Engines]] * Cube'''

[[FILE:Hexahedron.gif|border|right|thumb|Cube <ref>A rotating [https://en.wikipedia.org/wiki/Hexahedron hexahedron] (cube). [https://en.wikipedia.org/wiki/Animation Animated] [https://en.wikipedia.org/wiki/GIF GIF] created by [https://commons.wikimedia.org/wiki/User:Kjell_Andr%C3%A9 Kjell André], [https://creativecommons.org/licenses/by-sa/3.0/deed.en CC BY-SA 3.0], [https://en.wikipedia.org/wiki/Wikimedia_Commons Wikimedia Commons], [https://en.wikipedia.org/wiki/Cube Cube from Wikipedia]</ref> ]]

'''Cube''',<br/>
a chess program from the early 80s, written in [[Fortran|Fortran IV]] by [[Lloyd L. Lank]] <ref>[http://www.trademarkia.com/correspondent-lloyd-l-lank-1-210740 LLOYD L. LANK, OVERLAN..., - a Trademark Correspondent]</ref> and [[James A. Lank]], at that time affiliated with ''United Computing Inc.'' <ref>[http://www.corporationwiki.com/Missouri/Kansas-City/united-computing-systems-inc-4388480.aspx United Computing Systems, Inc. Company Profile - Located in Kansas City, MO]</ref> , [https://en.wikipedia.org/wiki/Kansas_City,_Missouri Kansas City, Missouri]. Cube ran on a [[Cray-1]], participating as Cube 2.0 at the [[ACM 1980]] <ref>[http://www.computerhistory.org/chess/full_record.php?iid=doc-431614f6cdeeb The Eleventh ACM's North American Computer Chess Championship], [http://archive.computerhistory.org/projects/chess/related_materials/text/3-1%20and%203-2%20and%203-3.1980_11th_ACM_NACCC/The_Eleventh_ACMs_North_American_Computer_Chess_Championship.1980.062303015.sm.pdf pdf] from [[The Computer History Museum]]</ref> , and as Cube 2.1 the [[ACM 1981]] <ref>[http://www.computerhistory.org/chess/full_record.php?iid=doc-431614f6ce737 The Twelfth ACM's North American Computer Chess Championship], [http://archive.computerhistory.org/projects/chess/related_materials/text/3-1%20and%203-2%20and%203-3.1981_ACM_NACCC/1981_ACM_NACCC.sm.062303017.pdf pdf] from [[The Computer History Museum]]</ref> .

=Description=
A brief description is available from the [[ACM 1980]] tournament booklet <ref>[http://www.computerhistory.org/chess/full_record.php?iid=doc-431614f6cdeeb The Eleventh ACM's North American Computer Chess Championship], [http://archive.computerhistory.org/projects/chess/related_materials/text/3-1%20and%203-2%20and%203-3.1980_11th_ACM_NACCC/The_Eleventh_ACMs_North_American_Computer_Chess_Championship.1980.062303015.sm.pdf pdf] from [[The Computer History Museum]]</ref> :
[[Cray-1]], United Computing, Kansas City (512k; 64 bits; 80,000,000 inst/sec)

Cube 2.0 is an updated version of Cube 1.1. It executes on either the Cray-1 or on an Honeywell 60/80 provided by Honeywell in Minneapolis. The program is written in [[Fortran]], uses [[Alpha-Beta|alpha-beta]] algorithm and [[Iterative Deepening|iterative deepening]]. On the Cray-1, the Lanks say the program examines 4,000 [[Nodes per second|nodes per second]]. This is its first ACM tournament.

=External Links=
* [https://en.wikipedia.org/wiki/Cube Cube from Wikipedia]
* [https://en.wikipedia.org/wiki/Cube_%28film%29 Cube (film) from Wikipedia]
* [https://en.wikipedia.org/wiki/The_Cube_%281969_film%29 The Cube (1969 film) from Wikipedia]

=References=
<references />

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