Klondike Solitaire is the classic version of solitaire. To win, you want to place all cards in the four foundation piles. These are the four empty areas at the top of the game. Each pile represents a different suit, and should be filled in order, starting with the Ace all the way to the King. For example, you would place the Ace of Spades first, followed by the two of spades, then three of spades, until the King of Spades is placed. Once you’ve done this with all four foundation piles, you win the game!