Klondike

The familiar seven-column solitaire. Uncover hidden cards and move each suit to its foundation, starting with the ace.

1. Move all 52 cards to the four foundations above the columns. Start each foundation with an Ace, then add cards of that same suit in order up to King.
2. In the seven columns, put a lower card on a card one value higher and of the opposite colour: a black 6 can go on a red 7. You may move a whole descending, alternating-colour run.
3. Only a King, alone or leading a valid run, can fill an empty column. When you uncover a face-down card, it turns over automatically and becomes available.
4. Click the stock to turn over one card. Only the top waste card is available. When the stock runs out, click it again to turn the waste back over; you can do this as often as needed.
5. Click a card to select it, then click the destination column or foundation. Double-tap or double-click an available card to send it to a suitable foundation. Click another card to change the selection. Score is the number of cards in the foundations; win by moving all 52 there. Undo and restarting the same deal are available.