In some instances, it is very useful to have the edges of the cards shaved off obliquely, so that one end is broader than the other. When a card is taken from the pack, the performer should watch and see if it is turned round whilst in the possession of the drawer. If it be not turned, then he must reverse the position of the pack before the card is returned to it. The cards may then be shuffled any number of times, and the performer will always be able to find the card by the fact of its broad end being where the other cards are narrow. This ruse is but little known among amateurs It saves a good deal of passing, but it will not obviate the necessity for forcing.