The K Desktop Environment

4.9. Freecell

The objective is to move all cards to the store positions (the four top-right places), starting with aces, in ascending order, following suits.

The free cells (the four top-left places) can hold any -- and just one -- card. Alternate red and black (in ascending order) to put cards on the other eight stacks.

If one of the stacks is empty, any card can be placed there. If there is enough free cells you can move multiple cards if they are in the correct sequence and with alternate colors. The number of free cells required is the same as if you would make an equivalent sequence of moves with single cards.