Spider Solitaire

Spider is played with two decks, 104 cards. Ten columns are dealt: the first four get six cards, the other six get five, and the top card of each is face up. The other 50 cards stay in the stock, five deals of ten.

The goal is to build eight full runs from King down to Ace in one suit. A finished run leaves the table on its own.

In the 1-suit game all 104 cards are spades, so every run you build is already in suit.

• Any card can go on a card one rank higher, whatever the suit: a 7 on any 8.
• Only a run in one suit, in order, moves together. A mixed-suit run has to be taken apart card by card.
• Any card or run can go into an empty column.
• When a face-down card is uncovered, it turns face up on its own.
• Tap the stock to deal one card onto every column. You can't deal while a column is empty.

Drag a card or a run, or tap it: a tap moves it to where it fits, onto a card of the same suit first. Tap the stock to deal.

Undo takes back as many moves as you like, deals included. Hint shows a move from a line our solver still wins, when it finds one in time. Once the stock is empty and every card is face up, Finish plays out the rest.

Your game is saved in this browser as you play.

With one suit, any card on a card one rank higher is a real build, so the game is about uncovering cards and keeping columns free.

• Turn over face-down cards before you deal. Each deal covers every column with one more card.
• An empty column is your most useful space: use it to sort a long column, then win it back.
• Before dealing, put high cards where low ones can follow.
• Finish runs when you can; they leave the table and give you room.