course, move to either of these squares on his next move after
capturing the Bishop.


The Bishop


The Bishop moves along an oblique line, that is, he may move to
any square of the diagonals on which he stands unless--as in
the case of the Rook--his way is obstructed by a man of his own
color. If there is a hostile man in the way he may capture him.
In Diagram 2, therefore, the Bishop may move to a2, b3, d5, e6
or, by capturing the Knight, to f7. He may not move, however, to
g8, until his next move after capturing the Knight. In the other
diagonal all squares, that is, fi, e2, d3, b5 and a6, are
accessible to him.

As the Bishop is confined to squares of the same color as the one
on which he stood at the beginning of the game he has access only
to thirty-two squares of the board, and from this it is evident
that the Rook to whom all squares of the board are accessible is
a stronger man.


The Queen


The Queen has the power of both Rook and Bishop having the choice
of moving to any square of the rank, file or diagonal on which
she stands as long as her path is clear. In Diagram 2 the squares