Switch (also called Two Four Jacks or Black Jack,[1] or Last Card in New Zealand) is a shedding-type card game for two or more players that is popular in the United Kingdom, Ireland and as alternative incarnations in other regions.

[1] The game is also commonly known as Jack Change It, Crazy Eights, Take Two and Peanuckle[citation needed] in the UK and Ireland.

The remainder of the deck is placed face down and serves as a "pool" or drawing stack.

If the drawing stack is run down and becomes empty, the playing stack or discard pile (except for the topmost card) is shuffled, and placed face down to become the new "pool."

If a player should fail to do so before the next player has started their turn they may be penalised, often to the cost of picking up one card immediately (over and above any picking up as a matter of routine course in the game).

A player can also declare their final card by 'knocking', usually by tapping the playing table.

These rules tend to lead to faster play, and can make gameplay more exciting as sometimes a large number of cards can be played in a single turn by taking full advantage of both of these rules in a single turn (for instance with the 6 of clubs on top, it would be possible to play 6♦ 6♥ 6♠ 7♠ 8♠ 9♠ 10♠ J♠ J♣ 10♣ 9♣ in a single turn).

Using the king and queen rules from the above list, it would be possible to have this as a move, (If the 6 of clubs is on the top of the deck, the next player could play K♣ 10♣ J♣ Q♣ 3♣ 5♣ 8♣ 7♣ 7♦ 6♦ 5♦ 5♠ 4♠ 3♠ etc.

"Jacks Twos and Eights" (J28 for short) evolved from earlier forms of rummy with the intention of being a faster, more complex game.

The remainder of the pack is placed face down next to the "discard" pile, and is called the "stock".

Play continues, until one player no longer has any cards to lay.

One exception to this is if the player is able to end the game with a run or set of same value cards.

The dealer deals each player 5 cards, then places a single card face-up on the table and the remainder of the deck in a pile face-down on the table.