Free Cell has (like Klondike) been included in Microsoft Windows. It is famous for game #11982, which has never been solved nor proven unsolvable.
Build from Aces to Kings in suit on the empty stacks with circle (object stacks) in the upper right corner.
On the eight main stacks, you can build downward in alternating color suits. Only the topmost card of one of these stacks can be dragged. This card can be dragged to another stack, to an object stack or to one of the four empty stacks (free cells) in the upper left corner. A free cell is a stack on wich you can temporary place one card. Any card may be placed on top of an empty main stack.
It is possible to drag more than one card if enough free cells are available.