7.2 Walls

A common strategy is for a player (or color) to build a ``wall'' accross the board with his or her pieces and their influences. Doing so will typically hinder the other player from moving one piece of a given type to the opposite side of the board, in effect ``isolating'' two pieces of the same type on one half of the board, so that no connections between those pieces are possible unless one of them is to move through a point of contention. In this case, the player with the isolated pieces should probably consider using a Solipsistic Path to get one of his or her pieces through to the opposite side of the board.