Re-symmetricise A Puzzle?

Everything about Sudoku that doesn't fit in one of the other sections

Re-symmetricise A Puzzle?

Postby civiliza » Thu Jul 07, 2011 6:43 pm

Out of curiosity, has anybody done any work along the lines of swapping the rows, columns etc of an non-symmetric puzzle to give it a rudimentary symmetry?

Would I be right in thinking that (as long as swaps stay within chutes etc or that whole chutes are swapped) doing this would have no effect on the puzzle's difficulty? (Ignoring the fact that certain clues might be easier to see in some arrangements than in others).
civiliza
 
Posts: 64
Joined: 25 October 2010

re: symmetricise a puzzle?

Postby Pat » Mon Jul 11, 2011 2:09 pm

civiliza wrote:

    has anybody done any work along the lines of swapping the rows, columns etc of an non-symmetric puzzle
    to give it a rudimentary symmetry?


here's the old discussion --
Pat (2007.Aug.20) wrote:

      ravel wrote:

        I would need a tool that determines,
        if there is a symmetrical equivalent to a given puzzle
gsf's software has this option --
gsf wrote:

    Grid symmetrized to largest dihedral order,
    "assymmetric" if no symmetry
    (not a fast implementation).

      -f%#sc
User avatar
Pat
 
Posts: 3448
Joined: 18 July 2005

Re: Re-symmetricise A Puzzle?

Postby civiliza » Wed Jul 20, 2011 7:14 pm

Thanks for the link Pat, apologies for not responding sooner but time has been a bit tight of late.

Will look at the thread when I have got the time to concentrate on it
civiliza
 
Posts: 64
Joined: 25 October 2010


Return to General