1 Deck. Hard (20%). Mostly Skill.
To move all the cards to the .
|•||4 piles (middle) - build from Ace to King. At the start of the game two Aces are dealt to the first 2 piles.|
|•||10 piles (left and right of ) - build . Only the top card of each pile is available for play, except that once per game a draw (or merci) is available. Right-clicking on any buried card will move that card to the top of its pile. This can only be done once in each game. Spaces may be filled by any available card. At the start of the game 5 cards are dealt to each pile.|
Fortress of Mercy is a variation of Fortress.