Surrounding Walls


My team is taking a look over the rules, which say there should be a “perimeter wall” around the map, i.e. walls that completely surround the map (2.2.3 of the rules).

Should we take it as the map will be completely closed, or may it have half-tile holes which are not accessible to the robot, but let it see the outside of the map?

Kind regards,
73 Robits