Algerian Solitaire is a fairly complex but exciting and strategic variation of the patience game, using two decks of cards. The goal is to complete the 8 Foundations of the game: build the aces up in suit to the king and the kings down to the ace. To do this, you can move the cards from the board and place them on another card if it is of the same suit and has a directly higher or lower value. You can only move one card at a time and you can place any card on the empty columns.