In fact, this mini-game is equivalent to a one-stroke painting process, and there are actually certain skills in one-stroke painting that can be used to assist in completing levels.
Players can first count the number of endpoints in the given figure with an odd number of connecting lines. If there are two odd endpoints, the solution must start from one of the odd points and end at the other odd point.
For example, in the formation shown in the picture above, the two points at the bottom are connected by three lines, which are odd-numbered endpoints, so they must start from one of the bottom points and end at the other side.
Another example is the one above, which is a relatively difficult array diagram.
It is not difficult to use this technique to determine the correct starting point and end point, which are the odd endpoints in the upper right corner and the odd endpoints in the lower left corner, making it easier to determine the correct route.
The numbered steps above are one of the solution paths, but of course this is not the only way to break the level.