Regarded as a Chessic Corps d’armee, the Bishop marches and attacks as
infantry, cavalry and artillery.
From one to four Bishops may be present in any Strategetic Horizon;
and whenever present the effect of its co-operation mathematically is
outlined, viz.:
At its maximum of efficiency, the Bishop occupies the common vertex
of four unequal triangles, having a maximum of 13 and a minimum of 9
points. His offensive power is valid against all of these points but his
defensive power is valid only for the support of two points.