elements to toggle thick lines in the grid. Helps to delineate
subgroups and cosets, so it's easier to remember what you can
legitimately fill in by associativity.
(I should really stop fiddling with this game's UI; it's far too silly.)
[originally from svn r9084]
much easier to keep track of things if, once you've identified a
cyclic subgroup, you can move it into a contiguous correctly ordered
block.
[originally from svn r9075]
immediately obvious which element of the group is the identity - at
least two elements including the identity have their rows and
columns completely blanked.
[originally from svn r8810]
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 :-)
[originally from svn r8800]