Most people refer to Klondike as "Solitaire", because it has been included in Microsoft Windows by that name.
Build from Aces to Kings in suit on the empty stacks with circle (object stacks) in the upper right corner.
Click on the closed deck in the upper left corner to take three cards and place them opened on the waste stack. Only the topmost card of the waste stack may be dragged. On the seven main stacks, you can build downward in alternating suits. A topmost card can be dragged to an object stack or one or more cards can be dragged from one to another main stack. Only Kings may be placed on top of empty main stacks.