Freecell

Freecell solitaire rules

Goal: All cards need to be moved to their foundation piles, on the top right corner of tableau, built up by suit.

Rules: The cards in each foundation cell must be build up from Ace to King. In the top left corner there are four open cells, each can temporarily store one card during the game. The card transferred to the foundation cell cannot be returned. Cards on a tableau can be build down (arranged in descending order) by alternating colors. If there is an empty cell on the tableau, any card or sequence can be transferred to it.

Wikipedia: Freecell