You thought the maze looked fun, but now you can’t find your way out. Luckily, mathematics is here to help you escape, says Katie Steckles
You would just go around. You would need to start on an island for it not to work. Which I don’t think you actually can, since the entrance (and the corresponding exit) necessarily already form a kind of “island”. Like if you have one entrance and one exit, there’s literally no way for them not to be connected