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|Card rank (highest to lowest)||A K Q J 10 9 8 7 6 5 4 3 2|
|Playing time||5 min.|
|Switch mau mau|
One-card is a shedding-type card game. The general principles put it into the crazy eights family. It is played with an ordinary poker deck and the objective is to get rid of all cards while preventing other players from getting rid of theirs. The game is commonly played in South Korea.
Rules of play
The dealer deals out seven cards for two players, or five cards for three or more players. When all players have been dealt their hands, one card is laid face-up in the middle of the table to form the discard pile, and the rest of the deck laid face-down beside it forming the stock pile. The Jokers are used.
The player to the dealer's right plays first by following the rank or suit of the first card led, or by playing a wild card. If the players can not follow the lead, they must draw a card from the stock. The players then take turns playing or drawing cards and the first player who plays all his or her cards out wins the game.
- King - Take another turn (play another card, or draw a card if none can be played).
- Queen - Reverse the direction of play (in the case of two players, it functions just like a jack).
- Jack - Jump (skip) the next player.
- 7 - the player calls out the new suit to play.
- 3 (or 4) - "shield card"
Attack and defense cards
When an attack card is played, the next player must draw one or more cards, or play another attack card.
- 2 - damage level of 2.
- Ace - damage level of 3.
- Ace of spades - damage level of 5.
- Joker (black) - damage level of 7.
- Joker (colored) - damage level of 10.
- Three - "shield", you can block the attack card with any "shape" of three cards.
Damage adds up (a 2, followed by an ace of spades has a total damage of 7). After drawing because of attack, it is still that player's turn; they may play one or more of the cards that they have just drawn.
When a player has only one card left, they must call out "one card", the next player is then penalized by drawing a card. The player who has only one card is penalized in return if someone else calls out "one card" first.
The stockpile is the stack of cards that have not yet gone into play. If this pile gets exhausted, and that frequently happens during the game, a player takes all but the last (top) card from the discard pile, shuffle them, to form a new stock of cards.
- A player can play more than one card at a time, but the cards must be the same rank (number or letter); in effect the suit is changed.
- Two or more kings can be played, in which case the player can take yet another turn. Two or more queens are played, the effect of the second cancels the first. If two or more jacks are played, one player is skipped for each jack.
- A maximum number of cards to be drawn due to a series of attack cards can be set (usually 20).
- When playing against an attack card, you must play one of equal or greater value of the top card. If the player plays a card with less damage, he must draw another from the stock, and if he plays a Two on an ace, he must still draw a card.
- Other reasons for penalty cards can be added.
- Instead of being a shield, a 3 can be used as a mirror to return the attack to the last attacking player, also reversing the direction of play.
- If a player ends on an attack card, and the attack moves through the whole circle back to them, they must pick up the cards associated with that attack (works best with two players).