Scorpion Solitaire — Unlimited
Spider's single-deck sting: build king-to-ace runs in suit, right on the table. Any face-up card moves with its whole pile — order be damned.
How to play
Assemble four complete king-to-ace runs, one per suit; a finished run sweeps off the board. Any face-up card can move — carrying everything on top of it — but it may only land on the same suit, one rank higher. Kings move to empty columns. When you're stuck, the reserve deals its three cards onto the first three columns, once. The sting: those tail cards buried under wrong-suit piles are why the game is named after a scorpion.
Questions people ask
How is Scorpion different from Spider?
One deck instead of two, four runs instead of eight, and — the big one — you move any face-up card with its unsorted pile, where Spider only moves clean same-suit runs.
What does the reserve do?
Three face-down cards wait beside the board. Tap them once, any time, to deal one onto each of the first three columns — a lifeline best saved for a genuine wall.
Why did my run disappear?
That's the win condition working: a complete king-to-ace run in a single suit sweeps off automatically. Four sweeps and the board is yours.