04-08-2009, 01:01 PM
Fixed the issue with the need to pull the lever in 15500 as remarked by nancygevans, a shortcut to get down to the end if one has gone back somewhere [for instance, to pull a lever...], and I also fixed a Sudoku ambiguity noted by Toybox [it now has a unique solution
] and made a few minor design changes which nobody will notice
] and made a few minor design changes which nobody will notice

