Andy Jacobs wrote: > > Don't they all have multiple solutions? That is, Given a solution S, > couldn't you switch row 1 and row 2 and have another valid solution, etc.? > > - Andy For that to work you'd have to swap 1 across and 2 across in the clues - making it a different puzzle, Fergal ==== Want to unsubscribe from Fun With Perl? Well, if you insist... ==== Send email to <fwp-request@technofile.org> with message _body_ ==== unsubscribe