Rules of the game :
This rat having entered this dwelling located in the middle of a paved enclosure and surrounded by high walls, could only escape by digging multiple underground galleries. He had to turn back each time he encountered an obstacle, to dig a new gallery in the opposite direction, and at the cost of many efforts, he finally managed to regain his freedom.
The arrows located in the center of the drawing indicate the entrances to the galleries he dug, so try, in turn, by following one or the other, to get out of this inextricable labyrinth. You will see that it is not as easy as you might think.