3 Keys Solitaire is a very simple solitaire, in which you need to sort all the cards from the columns into three decks. Two of which you can open with the help of the keys hidden among the columns of the cards. Lay out the solitaire and get to the hidden keys that allow you to open additional cells for cards. You also have four jokers. You can put any card on them. You can put on the deck any card from the column that differs by one from the card in the deck.