Amazing Photoshop

Photoshop wasn't designed for this, but it works: How to solve a maze with Photoshop.

1. Increase contrast.
2. Select the right wall of the maze using the magic wand.
3. Select > Modify > Expand 4 pixels
4. Create new layer.
5. Fill with Red.
6. Select > Modify > Contract 2 pixels.
7. Delete. Now you've got a line tracing the solution.
8. Manually clean up the outer edge, and connect the dots.
9. Cake!

Here's a tiny portion of a huge maze that was solved in two minutes.