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.

The Queen is usually reckoned equal, in average situations, to two Rooks and a Pawn, but towards the end of a game she is hardly so valuable as two Rooks.

To play with correctness and skill the ends of games, is an important but a very rare accomplishment, expect among the magnates of the game.

The Bishop and Knight, in contradistinction to the Queen and Rook, are called Minor Pieces.

A player is said to have the opposition when he can place his King directly in front of the adverse King, with only one square between them. This is often an important advantage in ending games.

The Bishop moves diagonally forwards or backwards, to the extent of the Board.

The game of chess is the most fascinating and intellectual pastime which the wisdom of antiquity has bequeathed to us.