When playing Fortress Solitaire, all 52 cards in the deck are dealt into 10 rows. Only the top card in each of these rows may be moved between rows, or to the foundations. Cards can be moved to other rows where the top card in that row is one greater than or one less than the card being moved. Cards must be sorted in the foundations in order and by suit. Any card can initially be moved to the empty foundations, however, once the first card is moved to the foundations. The other empty foundations must be filled starting with the same card that was first dropped into the first empty foundation. Cards in the foundations may wrap from King to Ace to Deuce.
Play Fortress Solitaire