At its maximum of efficiency the Pawn occupies the vertex of a triangle of two points. Its offensive power is equally valid against both of these points; but its defensive power is valid for the support of only one point. POTENTIAL COMPLEMENTS. Subjoined is a table of the potential complements of the Chesspieces. The King 6⁹⁄₁₆ units. The Queen 22¼ ” The Rook 14 ” The Bishop 8¾ ” The Knight 5¼ ” The Pawn 1½ ” The student clearly should understand that this table does not indicate prowess, but relates exclusively to normal facilities for bringing force into action. * * * * * The relative advantage in Organization possessed by one army over an opposing army always can be determined by the following, viz.: _RULE._ 1. Above a line, set down in order those abbreviations which properly designate the White corps d’armee present in a given Strategetic Situation; and below the line, set down those abbreviations which in like manner designate the Black corps d’armee, viz.: K+Q+R+R+P+P+P+P ---------------- K+Q+R+B+P+P+P+P+P 2. Cancel all like symbols and resolve the unlike symbols remaining, into their respective Potential complements, viz.: R 14 --- = ------- = --- B+P 8¾ + 1½ 10¼ 3. Subtract the lesser Potential total from the greater and the difference will be the relative advantage in Organization. 4. To utilize the relative advantage in Organization select a battlefield in which the Strategic Key, the Tactical Keys and the Points of Command of the True Strategetic Horizon are situated upon the perimeters of those geometric and sub-geometric symbols which appertain to the corps d’armee whose superior potentiality is established by Section 2. 5. To neutralize the relative disadvantage in Organization, occupy the necessary posts upon the battlefield selected in such a manner that the kindred decisive points are situated _not_ upon the perimeters of the geometric and sub-geometric symbols appertaining to the adverse corps d’armee of superior potentiality; while the adverse decisive points _are_ situated upon the perimeters of the geometric and sub-geometric symbols which appertain to the kindred corps d’armee of inferior potentiality. MILITARY EXAMPLES _“Men habituated to luxury cannot contend with an army accustomed to fatigue and inured to want.”--Caesar._ * * * * * _“That wing with which you propose to engage the enemy should be composed of your best troops.”--Epaminondas._ The _Sacred Band_ of the Thebans was composed of men selected for valor and character. Epaminondas called them _Comrades_ and by honorable rewards and distinctions induced them to bear without murmur the hardest fatigues and to confront with intrepidity the greatest dangers.