Rejoice! For bad things are about to happen.
Behold, 5769 x 5769 block labyrinth (walls and passages are 1 block wide).
larger.gif - Speedy Share - upload your files here
Download it here.
Just keep zooming in
I'm currently working on solving it with GIMP. It's a little trick that works with all photo editing software to solve a maze.
Essentually, you use a Magic Want select tool (or Fuzzy select tool or whatever is your equivalent of making a selection of a region of a picture with same/nearly same color). Select a pixel of a wall right next to the entrance point pixel.
Once you have that selection made, select "Grow" or whatever is your equivalent, and make the selection bigger by 1 pixel. Make new layer, fill with red color.
Now shrink the selection by 1 pixel and delete.
You should be left with 1 pixel wide line connecting the entrance with exit of a maze, providing a right-hand-method solution.
My dual core CPU is performing the Magic Want selection of the walls for oh, about 7 hours now, with color threshold reduced to zero and turned off antialiasing. With those options on, it ran for 14 hours before I stopped it.
Who's up for teh challenge?