||It has been suggested that overhand shuffle be merged into
this article. (Discuss) Proposed since December 2011.| Shuffling
is a procedure used to randomize a deck of playing cards to
provide an element of chance in card games. Shuffling is often
followed by a cut, to help ensure that the shuffler has not
manipulated the outcome. Shuffling techniques  A common
shuffling technique is called the riffle or dovetail shuffle, in
which half of the deck is held in each hand with the thumbs
inward, then cards are released by the thumbs so that they fall
to the table interleaved. Many also lift the cards up after a
riffle, forming what is called a bridge which puts the cards
back into place. This can also be done by placing the halves
flat on the table with their rear corners touching, then lifting
the back edges with the thumbs while pushing the halves
together. While this method is more difficult, it is often used
in casinos because it minimizes the risk of exposing cards
during the shuffle. There are two types of