King (chess)

Definition and stakes

Franklin K.‏ Young,  Chess Generalship, Vol. I. Grand Reconnaissance

“ PRINCIPLE The King is the SOURCE from whence the Chess-pieces derive all power of movement; and from his ability to move, emanates ALL power for attack and for defence possessed by a Chessic army.
This faculty of mobility, derived from the existence of the kindred King, is the all essential element in Chess-play, and to increase the mobility of the kindred pieces and to reduce that of the adverse pieces is the simple, sure and only scientific road to victory
”
Source: Gutenberg

Charlotte Boardman Rogers,  How to Play Chess (1907)

“ As the King is of greatest importance, the student should consider him first, and before beginning to play determine how he is to be handled. Formerly, it was the custom for skilled players to keep this Royal Force in a corner out of harm's way, but the modern tendency is to develop him as a fighting Piece and bring him into the field. The beginner must remember that the King cannot be castled after he has been moved and that it is advantageous to retain the privilege of castling as long as possible, if it does not interfere with the development of the game. ”
Source: Wikisource

Charlotte Boardman Rogers,  How to Play Chess (1907)

“ Thus, the sphere of influence of the two Kings overlaps at K6 and Q6 with the result that those two squares are neutral territory, forbidden to both by the fundamental laws of Chess, for the Kings must always have an interval of at least one square between them.
As the object of the game is to capture or checkmate the adversary's King, it is readily seen that he is of paramount importance, and that the moves of all the other Pieces and Pawns are made with reference to him.
The Queen's Move.
The Queen moves in any direction, like the King, but she is not restricted to
black.
”
Source: Wikisource

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