Play the most difficult Solitaire variant : Yukon Solitaire. Yukon Solitaire follows most of the rules of the classic Klondike/Patience game. There are a few differences. First, all cards are dealt at once. Next, groups of cards can be moved even if they are not in the correct order. For example, if you have a red eight with a three on top of it, you can move both cards (as a group) to any open black nine. Sounds simple, doesn't it? Try Yukon Solitaire and see how difficult it is to win a g