

If there is an empty space on the tableau, only a king can fill it.If more than one card is face up on a pile, you can move them together. For example, you can play a red four on a black five.

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How to Play SolitaireĬlassic Solitaire, also known as klondike solitaire, is arguably the most popular form of solitaire today. Queen Victoria's German husband, Prince Albert, was notably fond of patience games. Some game variations have also been called patience, especially in England, Germany, and Portugal. This is also supported by the use of the alternative term "cabale", which originated from the Medieval Latin "caballa", meaning secret knowledge. The card game Solitaire likely originated from cartomancy or tarot as an early form of fortune telling due to how cards are laid out in both practices. However, this was a different game as it used pegs instead of cards. One of the first documented references to the word "solitaire" was in a 17th-century engraving featuring Anne-Joulie de Rohan-Chabot, Princess Soubise, playing solitaire. The origins of the game are a little hazy.

The game involves arranging a shuffled deck of cards into a specified order or tableau, no matter the variation. Because some blue cells are invalid, we can declare all blue cells unsuitable for digit 1.Solitaire is the collective term for hundreds of card games and activities requiring only one person. There are 2 blue cells in row 1, box 2 and column 5. It is easy to see that it would be impossible for all blue cells to contain digit 1. Now either all blue cells must contain digit 1 or all green cells. Here is an example that shows how colors can cause a contradiction.Īll the candidates for digit 1 are highlighted. It cannot sustain a candidate for digit 3. There is no middle ground in which some blue cells and some green cells contain digit 3.Ĭell r2c6 can see both colors. Now either all blue cells must contain digit 3 or all green cells. Notice that row 9, column 9 and box 9 all have 2 candidates for digit 3, which now have opposite colors. In the example, green and blue colors have been applied. We can use colors to help us remember which candidates must be true or false simultaneously. In coloring terminology, these candidates form a conjugate pair. When a row, column or box contains only 2 candidates for a digit, one of them must be true and the other must be false. The following example demonstrates the principle:Īll the candidates for digit 3 are highlighted. Simple Colors Simple Colors is a subtype of coloring which only uses 2 colors.
