Solitaire (Klondike)

The main objective of Klondike Solitaire is to move all 52 cards from the tableau into four distinct foundation piles. Each foundation must be built up in ascending order, starting from the Ace and ending with the King, separated by suit. You win the game when all four foundation piles are successfully completed.

Within the seven tableau piles, you must build sequences in descending order while alternating colors, such as placing a red six onto a black seven. You can move single cards or stacks of sequentially ordered cards. When you expose a face-down card in the tableau, you flip it over to continue play.

If you exhaust all playable moves on the board, you draw cards from the stockpile, which is the leftover deck, to find new cards to play. Depending on the specific rules you are playing by, you can cycle through the stockpile either one card at a time or in groups of three. If you cycle through the entire deck without making any moves, the game is typically lost.

No, not every game of Klondike Solitaire is mathematically winnable, even if you play perfectly. Because cards are dealt randomly and some remain hidden until you uncover them, certain configurations result in a dead end. The classic version of the game has an estimated win rate of around 80% for experienced players.