Yukon Kings axes the foundations entirely: sort all 52 cards into one descending, alternating-color run across seven columns, King wrapping under Ace.

Yukon Kings Solitaire strips the foundations out of Yukon entirely. There is nowhere to send finished cards, so the whole game happens on the tableau: your goal is to sort every card into descending, alternating-color order right there in the seven columns. It is a demanding twist that keeps every card in play until the very last move.
The clever detail is the wrap. A King may be built directly below an Ace, which lets a sorted run flow past the bottom of the deck and back to the top. That single rule is what makes a complete tableau sort possible and gives the game its regal name.
Like all Yukon games, this one deals almost everything face-up and lets you lift any group of cards at once, so the information is open but the sorting is hard. It uses a single deck with no stock, waste, or reserve, so success rests entirely on how well you untangle the columns.
If you enjoy Yukon Kings, try Yukon Solitaire or Scorpion Solitaire, two classic solitaire card games built around sorting on the tableau.
If you run into anything odd or have an idea that would make the game better, please contact me.
Have fun!
7 tableau piles: Build down in alternating colors, with a King allowed below an Ace. Pile one starts with a single face-up card; piles two through seven each begin with a run of face-down cards, one more per pile as you move right, then five more cards dealt face-up on top, for column totals of 1, 6, 7, 8, 9, 10, and 11. There are no foundations, stock, waste, or reserve.
Seven tableau piles hold 1, 6, 7, 8, 9, 10, and 11 cards. Pile one starts with a single face-up card. Piles two through seven each begin with a run of face-down cards, one more per pile as you move right, then five more cards dealt face-up on top.
A card can be added to a tableau pile only if it's one rank lower and the opposite color of the pile's current top card, so the only card that fits on a black 8 is a red 7. Because the sequence wraps, a King may be placed on an Ace, letting a sorted run continue around the ends of the deck.
As in Yukon, you may pick up any face-up card along with every card sitting on top of it, whether or not they form an ordered sequence, and move the whole group at once onto another pile.
Empty tableau spaces may be filled with a King, either alone or leading a group of cards.
You win when every card lies on the tableau in a properly sorted, alternating-color, descending order. There are no foundation piles to build onto, so all of the sorting must be completed within the seven columns.