Solving a maze with Photoshop.

This is functionally identical to how you can solve real physical mazes. Put your right hand on the wall to your right as you enter the maze, and keep it there as you follow it through to the exit.

Essentially, in both examples, you are splitting the maze in two. The entrance and exit divide the maze into two different wals that never touch each other. The line that divides the two walls is the shortest distance from the entrance to the exit.

However, both of these methods will only work on the simplest form of maze, that is a maze that has a single entrance and a single exit, each on the outside of the maze.

Many mazes, particularly of the physical variety, have one, or more, goals to be reached in the centre of the maze (often before reaching the final external exit). This method will not necessarily take you to a central goal, and in the case of multiple such goals, is almost guarantees you won’t reach them all.

Another type of maze might be one with multiple exits. If only one is the correct exit, this method is not guaranteed to take you there, and if the designer of the maze is smart, this method will definitely not take you there.

Doesn’t require Photoshop. Any paint program with layers and a ‘magic wand’ tool will work just as well, for example, Paint.NET, Paintshop Pro or GIMP.