Klondike Solitaire is a highly engaging single-player card game that uses a standard 52-card deck. The goal is to sort all the cards into the four foundation piles, each representing one suit: diamonds, clubs, hearts, and spades. Players must arrange the cards in each pile in ascending sequence, starting from the ace and ending with the king. This classic version of solitaire challenges strategic thinking and patience, making it a favorite for card game enthusiasts. Its simple rules and rewarding gameplay have cemented its status as one of the most popular solitaire variations worldwide.