## What is the card shuffler for?

Use this tool to cycle through a shuffled pack of cards.

It's useful for simple games like `higher or lower`

and `kings`

— or for role-playing party games that require a pack of cards to determine the roles of each player.

## How to use this tool?

Simply click a card to flip it. Click `shuffle`

to re-shuffle the deck.

Click `options`

to `add`

or `remove`

cards from the deck.

## What's the chance of getting the same deck twice?

There's `52`

cards in a standard deck. Meaning there's `52!`

possible orders for any shuffled deck.

`52!`

is `52 x 51 x 50 ... 3 x 2 x 1`

The chances of getting the same order of cards `twice`

is `1 / 52!`

.

So the chance is `1`

in

`80658175170943878571660636856403766975289505440883277824000000000000`

…a number larger than the number of milleseconds since the beginning of the universe.