Click and drag the cards with the normal rules of patience/solitaire/Klondike. Click on aces and drag them to the corner to begin the foundations, and then drag other cards on to them to build on them. Click on the cards in the bottom left corner to deal three at a time, and when they are used up, click where they would be to redeal.
The rules are explained here: https://en.wikipedia.org/wiki/Klondike_(solitaire) This is made using stamps.