Solitaire is a classic single-player card game, most commonly played with a standard 52-card deck. The goal is to arrange all the cards into four foundation piles, each organized by suit in ascending order (from Ace to King).
Players move cards between columns (called the tableau), typically arranging them in descending order and alternating colors (red and black). Strategy and planning are important, as not all games can be won depending on the initial layout.