The maze looks like a street grid, with arrows pointing down various roads at each intersection. When one comes to an intersection, only arrows leading from the road you are on to another road can be followed. One must continue in this fashion, following the arrows at the intersection, until the end is reached. When you come to an intersection from one direction, you have different options for which road to take than you would coming into the intersection from another direction; therefore, this can be defined as a "multi-state" or "logic" maze.