The full importance of topography perhaps is best expressed in the following dictum by the great Frederic:
PRINCIPLE
“Whenever a general and decisive topographical advantage is presented, one has merely to avail of this, without troubling about anything further.”
The relative advantage in Topography possessed by one army over an opposing army, always can be determined by the following, viz.:
RULE
1. If the principal adverse Corps of Position are situated upon points of a given color, and if the principal Kindred Corps of Position are situated upon points not of the given color, then:
That army which has the more Corps of Evolution able to act against points of the given color, and the equality in Corps of Evolution able to act against points of the opposite color, has the relative advantage in Topography.
2. To utilize the relative advantage in Topography, construct a position in which the kindred Corps of Position necessary to be defended shall occupy a point upon the sub-geometric symbol of a kindred Corps of Evolution; which point shall be a Tactical Key of a True Strategetic Horizon of which the kindred Corps of Evolution is the Corps of the Centre and of which either the adverse King or an undefendable adverse piece is the second Tactical Key.
3. To neutralize the relative disadvantage in Topography, eliminate that adverse Corps d’armee which is able to act simultaneously by its geometric symbol against the principal Kindred Corps of Position upon a given color; and by its sub-geometric symbol against points of opposite color.