Blindfold Chess, or Chess Sans Voir. Games played without seeing either the board or the men. The power of playing at least one game in this way is generally acquired by every player; and persons who are skilled in the science of Chess have been known to conduct as many as a dozen such games simultaneously.
Capturing. Moving a Piece or Pawn into a square occupied by an adverse Piece or Pawn and taking or "capturing" it. Any Piece or Pawn may be captured with the exception of the King, his capture is accomplished by "checkmate." The various Pieces capture according to the direction and extent of their respective moves. The Pawns, however, vary from this rule and are allowed to move one square forward in a diagonal line from the one on which they stand, in order to capture an adverse Piece or Pawn.
Castling. A combined move of King and Rook allowed to each player once in a game and consisting of moving the Rook to the square next to the King, and
