Sudognu is a command line sudoku solver and
creator. It can display the logical steps it uses
to find the solution. Sudognu can print four
sudokus to a PDF page, and it comes with example
CGI scripts for integration into Web sites.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
This release features built-in PDF support. A new solving technique (two-color) has been added. If you are updating from a previous release, note the change in command line syntax for specification of output file names and update your CGI scripts.
Two new solution techniques, "xy-wing" and "xyz-wing", have been implemented. An efficient algorithm for canonizing sudokus is now available, which is useful for archiving sudokus and checking uniqueness. Finally, a user contributed Perl CGI script has been added.
Apart from code cleanup and bug fixing, this
release features an additional elimination
technique (line-block interaction) and an improved
algorithm for evaluating sudoku difficulty. SVG
output has been added. PDF output is now optional,
so libharu is no longer required to compile
sudognu.
This release applies the forcing chain after
X-wing, swordfish, and
jellyfish, improves the documentation, adds a -P
option for reordering
solution techniques, facilitates browsing of
sudoku solutions, and adds
minor bugfixes.
