simon-svn: puzzles: simon

[Commits to Tartarus CVS repository.]

SVN root:       svn://svn.tartarus.org/sgt
Changes by:     simon
Revision:       8800
Date:           2009-12-30 16:53:36 +0000 (Wed, 30 Dec 2009)

Log message (14 lines):
New puzzle in 'unfinished'. Essentially, Sudoku for group theorists:
you are given a partially specified Cayley table of a small finite
group, and must fill in all the missing entries using both Sudoku-
style deductions (minus the square block constraint) and the group
axioms. I've just thrown it together in about five hours by cloning-
and-hacking from Keen, as much as anything else to demonstrate that
the new latin.c interface really does make it extremely easy to
write new Latin square puzzles.

It's not really _unfinished_, as such, but it is just too esoteric
(not to mention difficult) for me to feel entirely comfortable with
adding it to the main puzzle collection. I can't bring myself to
throw it away, though, and who knows - perhaps a university maths
department might find it a useful teaching tool :-)

Modified files:
A   puzzles/unfinished/group.R
A   puzzles/unfinished/group.c
A   puzzles/unfinished/group.gap

Links:
http://svn.tartarus.org/sgt/?rev=8800&view=rev
http://svn.tartarus.org/sgt/puzzles/unfinished/group.R?rev=8800&view=markup
http://svn.tartarus.org/sgt/puzzles/unfinished/group.c?rev=8800&view=markup
http://svn.tartarus.org/sgt/puzzles/unfinished/group.gap?rev=8800&view=markup