When you draw a maze by hand, there is only one solution. You can try it yourself to see if you can get out of it. Of course, the left-hand rule is universal, but it is very difficult to draw a route. Up can always solve such a maze by himself, but in fact up cannot solve it very quickly, it may take 30 minutes.
You may be wondering why you can't get out of the maze even if you draw it yourself?
Because when I drew the maze, I basically didn’t think about the route. Ordinary mazes are drawn after preparing the route, and the difficulty is often very low. The up maze is very different. Start with a rectangular frame and then start painting directly from the entrance. If there are no problems, add a branch road. If there are no branch roads, add a branch road. If there are too many branch roads in the middle, then block them. Be careful not to draw a long straight road, which allows experts to easily draw some very effective conclusions, thereby reducing the difficulty. Don’t think about how to find a successful route first. Many people think this is not difficult. It is easier to get out by walking from the opposite side, because the route found on the opposite side is easier to lead to the starting point. How does this work? So the reverse side also has the same level of difficulty.
Then there are about 60 branch roads in the middle, and there are still many blank spaces. At this time, we will think about the route. You can plan which two branch roads before and after overlap, and then draw different branch roads when you have an idea. After the last two branch roads overlap, the route will be ready, and then extend and branch the other branch roads, and finally fill the map and seal it. The maze of great difficulty is completed
