Yukon

Goal: build all four foundations up from Ace to King, each in a single suit.

• Tableau columns build down in alternating colour.
• Any face-up card can be picked up together with everything on top of it, regardless of order — only the bottom card of the group needs to fit the target.
• Uncovering a face-down card flips it; an empty column takes a King (or a group headed by one).