Lucas is a variation of Forty Thieves, differing in that the tableau consists of thirteen columns of three cards each (as opposed to 40 cards in Forty Thieves), and the aces are pre-founded (moved to the foundations before the game begins).

Number of Decks: 2 (104 cards)

Initial Layout: Begin by removing the aces from the deck and placing them as the starting cards for the eight foundations. Then deal 36 cards to the tableau, face-up, as thirteen piles of three cards each, spread out vertically so that all cards are visible. Leave space for eight foundation piles above the tableau. The remaining cards form the stock, and are held in a single face-down pile. Also reserve space for a single wastepile.

Object: The object of the game is to build all eight foundations up in suit from ace to king.

Play: Within the tableau, cards are built down and in suit. Only the top card of each tableau pile is available for play. Only one card at a time may be moved, either to a foundation or to another tableau pile. Spaces within the tableau may be filled with any card.

The top card of the stock is available for play to a foundation or to a tableau pile, or may be put on the wastepile. The top card of the waste pile is also available for play to a foundation or to a tableau pile. There is no redeal.