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title: Cube

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[ Cube [1] Cube,

a chess program from the early 80s, written in Fortran IV by Lloyd L. Lank [2] at that time affiliated with United Computing Inc. [3] , Kansas City, Missouri, supported by chess advisor James A. Lank. Cube ran on a Cray-1, participating as Cube 2.0 at the ACM 1980 [4] , and as Cube 2.1 the ACM 1981 [5] .

Description

A brief description is available from the ACM 1980 tournament booklet [6] :

[Cray-1](Cray-1 "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](Fortran "Fortran"), uses [alpha-beta](Alpha-Beta "Alpha-Beta") algorithm and [iterative deepening](Iterative_Deepening "Iterative Deepening"). On the Cray-1, the Lanks say the program examines 4,000 [nodes per second](Nodes_per_Second "Nodes per Second"). This is its first ACM tournament.

External Links

References

  1. ↑ A rotating hexahedron (cube). Animated GIF created by Kjell AndrΓ©, CC BY-SA 3.0, Wikimedia Commons, Cube from Wikipedia
  2. ↑ LLOYD L. LANK, OVERLAN..., - a Trademark Correspondent
  3. ↑ United Computing Systems, Inc. Company Profile - Located in Kansas City, MO
  4. ↑ The Eleventh ACM's North American Computer Chess Championship, pdf from The Computer History Museum
  5. ↑ The Twelfth ACM's North American Computer Chess Championship, pdf from The Computer History Museum
  6. ↑ The Eleventh ACM's North American Computer Chess Championship, pdf from The Computer History Museum
  7. ↑ Film excerpts from Radar Men from the Moon

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