It moves forward or backward as a rook, or one square orthogonally sideways. The Wall cannot leap, so all squares that the wall moves over must be free of friendly pieces. Pieces may move over a friendly Wall if they are moving in a forward direction. A Wall is captured if an enemy piece moves into one of the two squares the Wall occupies. A Withdrawer may capture a Wall by moving directly away from either of the two squares the Wall occupies.
Walls capture by moving into squares occupied by enemy pieces.
A Wall cannot capture a Wall. Unlike its Ganymede Chess counterpart, this version of the Wall cannot rotate. The Changeling is a piece which changes each time it moves. The Halfling Rook moves in a similar manner in relation to the Rook. After the Changeling finishes moving it changes to its alternate movement.