The eight Pieces, by reason of their ability to move in all directions, the scope of their movements and the peculiar exercises of their offensive and defensive powers, are best adapted of the Chesspieces to perform those functions which in the Military Art appertain to Corps of Evolution.
Corps of Evolution acting offensively, take their individual appelations from the points which constitute their objective in the true Strategetic Horizon, viz.:
- 1. Corps of the Right.
- 2. Corps of the Centre.
- 3. Corps of the Left.
Corps of Evolution acting defensively, take their individual appelations from the particular duties they are required to perform, viz.:
- 1. Supporting Corps.
- 2. Covering Corps.
- 3. Sustaining Corps.
- 4. Corps of Impenetrability.
- 5. Corps of Resistance.
The normal use of Corps of Evolution is limited to Lines of Manoeuvre. When acting on a Simple Line of Manoeuvre, a Corps of Evolution may deploy on the corresponding Line of Mobilization; but it has nothing in common with the Line of Development, which latter appertains exclusively to Corps of Position.
Any corps d’armee, whether of Position or of Evolution may be utilized upon a Line of Operations.
THE KING.
Regarded as a Chessic Corps d’armee, the King marches as infantry, cavalry and artillery; but it attacks as infantry exclusively and never as cavalry or artillery.