Your goal is to clear pyramid of cards by creating combinations of 2 cards that add up to 13. Aces count as 1, Jacks - 11, Queens - 12. Kings count as 13 and can be removed on their own. All other cards count at their face value.
While playing "With Store" mode, use Temporary place cards in the Temp Card Store Pile (next to Stock Pile) to increase your options.
Earn extra bonus for clearing the all the cards.