Zodiac (solitaire)
Encyclopedia
Zodiac is a solitaire
Solitaire
Solitaire is any tabletop game which one can play by oneself or with other people. The solitaire card game Klondike is often known as simply Solitaire....

 card game
Card game
A card game is any game using playing cards as the primary device with which the game is played, be they traditional or game-specific. Countless card games exist, including families of related games...

 which is played with two decks of playing card
Playing card
A playing card is a piece of specially prepared heavy paper, thin cardboard, plastic-coated paper, cotton-paper blend, or thin plastic, marked with distinguishing motifs and used as one of a set for playing card games...

s shuffled together. An old game, it first appeared in Lady Adelaide Cadogan's book Illustrated Games of Patience. It is so-named probably because of its "globe
Globe
A globe is a three-dimensional scale model of Earth or other spheroid celestial body such as a planet, star, or moon...

"-shaped layout. It had many variations until its rules were standardized in 1914.

First, eight cards are deal in a row. They form the cells which make up the reserve, or the "Equator
Equator
An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass....

". Each reserve cell can only hold one card. Then twenty four cards are dealt in a circle surrounding the Equator to form the tableau, or the "Zodiac
Zodiac
In astronomy, the zodiac is a circle of twelve 30° divisions of celestial longitude which are centred upon the ecliptic: the apparent path of the Sun across the celestial sphere over the course of the year...

."

The game is divided into two phases: the first phases consists of playing the rest of the cards into the Zodiac and the Equator; the second phase is the building of the cards into the foundations.

In the first phase of the game, the cards in the Zodiac are built up or down by suit; the build can change direction in the same pile. However, the cards in Zodiac cannot be touched until the second phase. This means that until the second phase starts, the cards in the Zodiac cannot be used to build on each other. Also, any card build on a pile in the Zodiac stays there until the start of the second phase.

The cards on the Equator are used to build on the cards on the Zodiac. The space in the Equator can be filled with an available card from the stock or the top card of the wastepile. However, filling a space is not compulsory, i.e. a player can leave a space open for as long as the player finds it advantageous.

Meanwhile, the stock is dealt one card at a time, and unplayable cards are placed on a wastepile, the top card of which is available to be built on a pile in the Zodiac or to fill a space on the Equator. Once the stock runs out, the player can just pick up the remaining cards in the wastepile and turn it face down to make it the new stock. The player can do this as many times as he wants as long as there still more cards neither in the Zodiac nor in the Equator.

Only when all cards are both in the Zodiac and in the Equator, the second phase begins. The cards in the Zodiac and Equator are built straight to the foundations. The foundations are built up by suit from Aces to Kings. The game is won when all the cards are built on the foundations.

At any point in the game, when it becomes stuck, i.e. the cards in the stock/wastepile cannot be built without blocking other cards during the first phase, or encountering a block during the second phase, the game is lost.

Obviously the player must have great care and consideration in building the cards in the Zodiac in order for the game to be won. Also, the layout of the game is large when played with standard-sized playing cards. So, as a suggestion, the player can just deal eight cards for the Equator and twenty-four cards for the Zodiac to save space.

See: solitaire terminology
Solitaire terminology
There are a number of terms common to many card games. These are not listed here, but are instead detailed at Glossary of card terms. Being familiar with those terms will help in understanding the terminology here....

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