Decade (solitaire)

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Decade also known by the names of Ten-Twenty-Thirty and One-Handed Solitaire is a solitaire card game played with a traditional 52 card deck that is akin to another solitaire game called Accordion. Like Accordion, it is traditionally played with the cards in a line. Because of its minimal use of space, it can also be played in one hand by placing the deck face down in the hand, and placing the line in a stack on top of the deck, with the discard pile face up on the bottom (as seen in picture to right).

[edit] Rules

Taking a standard 52-card deck of playing cards (without Jokers), three cards are drawn from the bottom of the deck and placed face up in a line on the table laid out in the order they were drawn so the faces can be read.

Spot cards (cards from ace to ten) have their face value while face cards (jack, queen, and king) are valued at ten points. If the total of at least two consecutive cards in the line equal 10, 20, or 30, they are discarded. The cards are treated as if in a straight line, so cards coming from both the front and back of the line that value to ten, twenty, or thirty are not considered consecutive unless they occupy a physically adjacent position to the card. After this has been repeated until no more discards are possible, draw a card from the stock and place face up on the extreme right of the line (or on top of the stack if playing on one hand), and resume checking for discards.

The game continues until all cards are dealt, discarded, or when no more sets can be collected. The object of the game is to have as few cards as possible at the end, with the game being won when all cards are discarded.

[edit] Variations

Cards are placed in seven separate stacks, if all the cards in a stack are discarded the stack is eliminated and cards are no longer added to it. The game is won when all stacks have been eliminated.
Only up to three consecutive cards that total ten, twenty, or thirty can be discarded (as opposed to at least two cards in the standard rules).
The line is treated as a loop instead of a straight line. So if the total of up to 3 three consecutive cards (or at least two consecutive cards, depending on the rule set one follows) in the stack which feature at least one card from the top of the stack equal 10, 20, or 30, they are discarded (see Example 1).

Example 1:

4	8	3	3	J	6

Because the stack is treated as a loop, and the cards selected use at least one card from the top of the stack discarding 4, J and 6 as a set of three totaling 20 (4 + 10 + 6), would be valid.