For playing a man to a square to which it cannot be legally moved, the adversary, at his option, may require him to move the man legally, or to move the King.
The Queen is by much the most powerful of the forces.
The Bishop moves diagonally forwards or backwards, to the extent of the Board.
After white's reply to 1.e4 e5 with 2.f4 the game is in its last throes
When neither party can give checkmate, the game is drawn
In Castling, the King must be moved first, or before the Rook is quitted. If the Rook be quitted before the King is touched, the opposing player may demand that the move of the Rook shall stand without the Castling being completed.