Klondike Solitaire Online is one of the most popular and well-known card games in the world. It is a single-player game that is played with a standard 52-card deck. The goal of the game is to move all of the cards from the tableau to the four foundation piles, in order from ace to king. To achieve this objective, players must strategically maneuver cards across seven tableau piles and utilize the stock pile and the waste pile.