four piles which form a row under the foundations. This is the tableau and the cards remaining in the hand form the stock. Cards on the tableau are packed in descending order and alternating colour, turning the corner from Ace to King if need be; while the foundations are built up in suit sequence, wrapping from King to Ace if necessary. Cards from the stock are dealt, in packets of three and face up, to a waste pile. After each packet of three is dealt, the top card of the waste pile is played to a foundation pile or the tableau if possible and in accordance with these rules. The top card of the reserve must be used to whenever possible to fill any gaps on the tableau or build on a foundation; in case the reserve is used up, it may be filled from cards from the waste pile. Cards may be moved between tableau piles either individually or as a complete sequence, provided the entire column is moved. One can make unlimited re-deals as long as there are moves, although Richard Canfield himself restricted the number of times that gamblers could re-deal the stock. The game is won when all cards are placed in the foundations. Variants Some variants of the game include: Chameleon, where the reserve only has 12 cards, and there are only three tableau columns. Building in the tableau is down, regardless of suit, and the stock is dealt one at a time with no redeals. All or any cards may be moved from the end of one tableau pile to another. Rainbow, in which the tableau builds down regardless of suit. Cards are turned one at a time and no redeals are allowed (in some sources one can deal from the stock one card at a time and two redeals are allowed in this game). Selective Canfield, where one can deal five cards right after the reserve is dealt. One can place any one of these five into the foundations and the remaining four cards become the tableau. Storehouse (Reserve or Thirteen Up), in which one should remove the deuces (twos) and place them on the foundations. The reserve and the cards on the tableau are then dealt. The stock is dealt one card at a time, and it can be used only twice. Furthermore, the method of building in this game is by