rubread.me

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Cube Solver II - copyright (c) 1994 Amzi! inc.
This program may be freely copied with appropriate credit given.

Cube Solver II is designed to be an entertaining example of Prolog
applied to a non-trivial problem.  Full source is included to
expose both the beauty (and obscurity) of Prolog.

The application is illustrative of typical AI programs.  It
involves a hugh search space which is brought to a manageable
size through the use of heuristics.  It represents the encoding
of the knowledge necessary to unscramble a cube.

This version of Cube Solver II has a simple scrolling interface
written that should work in any Edinburgh standard Prolog.

The sources are split among six files, and take advantage of Cogent
Prolog's support of modules.  The import and export directives can
be ignored for interpreted use of the code, but might have to be
modified for use with another Prolog compiler.

The following files contain documentation:

     rubuse.txt  - a users guide of sorts, notes on notation and
                   the user interface
     rubread.me  - this one
     rubdoc1.txt - the strategy for solving the cube
     rubdoc2.txt - the internal representation of the problem
     *.pro       - the source files with comments

To run it from a Prolog interpreter

     ?- [rubik, rubdata, rubdisp, rubedit, rubhelp, rubhist, rubmov].
     ?- main.

If you have the compiler, you can compile each of the modules and run
them from the interactive runtime.

     ?- load([rubik, rubdata, rubdisp, rubedit, rubhelp, rubhist, rubmov]).

In either case, you can turn on logging, using the .INI file to generate
a log of all the moves.

Runtime/API customers can use the file RUBBUILD.BAT to compile and
link and package a standalone version of RUBIK.

The RUBIK.INI file is set up assuming a 32-bit environment.  It also uses
the logfile to record the moves that led up to a solution.