Move all cards to the foundations. Two packs of cards are used.
The bottom half of the foundations are built up by suit from Ace to King, and the top half are built down from King to Ace. Working stacks build up or down by value, regardless of suit. Aces can be placed on Kings, and Kings can be placed on Aces. Only one card at a time can be moved between working stacks. Empty spaces can be filled by any card.