Is there a reason why tiles can't be slid such that a character would be moved off the center 12 tiles? It seems strange considering that characters can move off those tiles naturally.
Although sometimes it seems like you can- if there is not already a revealed tile on that space. I am understanding this correctly?
The idea is that tiles that move into the "side position" or decks, are moved below the the others. Meaning a tile with a character on can't be moved below another tile. The other case is when there is no tile in the side position on the other side of a row/column. Then a tile can't be moved further to the opposite side.