The _Charge of Infantry_ is indicated by the movement of any Chesspiece from a given point to an occupied adjacent point; posting itself thereon and capturing the adverse piece there located. The _Charge of Cavalry_ is indicated by the movement of any Chesspiece from a given point to an occupied point _not_ an adjacent point; posting itself thereon and capturing the adverse piece there located. CORPS D’ARMEE FIRE EFFECT. _Infantry:_ _Offensive Fire Effect._ Compelling an adverse piece to withdraw from its post upon an adjacent occupied point. _Defensive Fire Effect._ Preventing an adverse piece from occupying an adjacent unoccupied point. _Artillery:_ _Offensive Fire Effect._ Compelling an adverse piece to withdraw from its post upon an occupied point not an adjacent point. _Defensive Fire Effect._ Preventing an adverse piece from occupying an unoccupied point not an adjacent point. CHESSIC CORPS D’ARMEE. The _Corps d’armee of the Chessboard_ are divided into two classes: viz.: I. Corps of Position. II. Corps of Evolution. CORPS D’ARMEE OF POSITION. _“The Pawns are the soul of Chess; upon their good or bad arrangement depends the gain or loss of the game.”--Philidor._ _The eight Pawns_, by reason of their limited movements, their inability to move backward and the peculiarity 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 Position. Each Corps of Position has its particular and designated Point of Mobilization and of Development, which differ with the various Strategic Fronts. Upon each Corps of Position devolves the duties of maintaining itself as a consistent integer of the established, or projected kindred Pawn Integral; as a possible kindred Promotable Factor and as a Point of Impenetrability upon the altitude of an opposing Pawn. Corps of Position take their individual appelation from their posts in a given formation, viz.: 1. Base Corps. 2. Pivotal Corps. 3. Minor Vertex Corps. 4. Minor Corps Aligned. 5. Major Vertex Corps. 6. Major Corps Aligned. 7. Corps Enpotence. 8. Minor Corps Enceinte. 9. Major Corps Enceinte. 10. Corps Echeloned. 11. Corps En Appui. 12. Base Corps Refused. 13. Pivotal Corps Refused. 14. Minor Vertex Corps Refused. 15. Minor Corps Aligned Refused. 16. Major Vertex Corps Refused. 17. Major Corps Aligned Refused. 18. Major Corps Refused Enpotence. 19. Corps en Major Crochet. 20. Corps en Minor Crochet. 21. Corps en Crochet Aligned. 22. Corps Doubly Aligned. 23. Grand Vertex Corps. The above formations by Corps of Position are described and illustrated in detail in preceding text-books by the author, entitled: The Minor Tactics of Chess. The Grand Tactics of Chess.