No. 10.
the black King cannot move without going into check from the Pawn or the King; none of the black Pawns can move, and Black cannot move the Rook without putting his own King in check, (from the Bishop,) which is not allowed.
Perpetual Check. If a piece gives check to the adverse King, and the King moves away, the check may be repeated, and the King must move again, or interpose a piece, or capture the checking piece. If the position is such that no matter how often the King moves or is covered he cannot get out of check, and no matter how much the opposing pieces move they cannot check-mate him, the game is drawn by perpetual check. Diagram No. 11 is an illustration of such a position.
No. 11.
BLACK.
The only way out of the check is to interpose the Queen, whereupon the white Queen will move diagonally to the edge of the board and check again, forcing the black Queen back where she came from, and drawing the game by perpetual check. If the black Queen moves away from the King, she will be captured, and White will give check-mate at the same time.
NOTATION. The various moves which take place in the course of a game are recorded by a system of chess notation, the number of the move being given first, and then the pieces moved and the direction of their movement. The names of the pieces themselves are used to distinguish the various files of squares running vertically from the piece itself to the opposite side of the board, and the seven squares in front of each piece are numbered from 2 to 8. No matter how much the pieces may be moved, the various vertical files still retain the name of the pieces which stood at the bottom of them when the men were first set up. In chess notation, only the initials of the pieces are used, K standing for King, and Kt for Knight. Although the files bear the same names, the numbers count from the side on which the men are placed, so that each square has a double name, depending on the colour of the man placed upon it.