Pro Fortress Solitaire

Pro Fortress Solitaire is a more challenging version of Fortress Solitaire for players who have mastered the original version of Fortress Solitaire and are looking to test their skills in a more difficult version of the game. In Pro Fortress Solitaire, the first card in all foundations must be an Ace. Also, any new piles created where all the existing card piles had been must be created with a King. This makes Pro Fortress Solitaire significantly more challenging than the original version of Fortress Solitaire.