Forty Thieves Solitaire is one challenging game I found in Mindjolt.
You must build up in suits from Ace to King. You have two decks of cards to play with.
Every card placed in the starting columns will be face up. It helps you strategize; but you are only able to move the bottom-most card of a column at a time.
Any card can be used to fill up a space; it doesn't just have to be a King.
The rules are stationary at the bottom of the game when you play....