                 CPT4: Cryptogram Puzzle Tool for X / Linux

Cryptogram Puzzle Tool helps solve the simple cryptogram puzzles that appear
in the daily newspapers. While these puzzles can often be solved almost by
inspection, CPT4 provides a handy tool the ones that turn out to be not
quite so easy.

If you just want a little bookkeeping help, CPT4 will instantly update all
occurrences  of the new assignments as well as provide frequency and
used/not-used letter lists as you drag-and-drop or key in suspected solution
letters. But if you'd rather have the computer do the work, the automatic
solution algorithm will usually come very close to a complete solution in
just a few seconds.

Bonus: CPT4 can also create new puzzles: simply key in or load plaintext
from a file, and select the 'Encrypt' item from the Options menu.

SYSTEM REQUIREMENTS:

CPT4 runs on Linux / X-Window systems, with all releases to date having been
developed on a Pentium-based PC. The statically linked binary distribution
will run on most systems, but the source and shared library distributions
require GTK and various other libraries; please see the enclosed file
'INSTALL' for dependency details.

DOWNLOADING:

   see 'http://lge1.com/ecsi-dev/cpt4home.html'.
   
INSTALLING:
 
   see the enclosed file 'INSTALL'.
   
AUTHOR / ACKNOWLEDGMENTS

Cryptogram Puzzle Tool was designed by:

    Jeff Edwards
    Edwards Custom Software, Inc.
    P.O. Box 261795
    Tampa, FL 33685-1795
    Email: lge.aka.jeff@gmail.com

The automatic solution algorithm used in CPT was devised by George W. Hart
and described in his article "To Decode Short Cryptograms", Communications
of ACM, September, 1994. In this version of CPT, the solution algorithm is
packaged as a separate executable, the 'C' code for which is largely an
adaptation of the public domain demonstration program posted by Dr. Hart on
his web site.

LICENSE

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or (at your
option) any later version.
