Spider Solitaire is the rare card game that grows with you. The board never changes — ten columns, two decks, eight runs to clear — but the suit count turns the same layout into three different games. One suit is a relaxed warm-up where every sequence can become a run. Two suits is the classic challenge, where mixed stacks start to cost you. Four suits is expert territory, where one careless deal can lock the whole tableau.
This free Spider Solitaire game uses the traditional layout. The first four columns start with six cards, the other six start with five, and the 50-card stock deals one card onto every column. Your goal is to assemble eight complete suited runs from king down to ace; each finished run clears off the tableau to the foundations.
If you are new, start with the 1-suit game and learn the rhythm: dig out face-down cards, keep an empty column in reserve, and never deal the stock with a column wide open. When 1-suit wins come easily, move up to 2 suits, then take on the full 4-suit game. Unlimited undo and persistent stats are there for every rung of the ladder, and the rules and strategy pages cover the details.
The odds shift more between rungs than most players expect. Solver work suggests that the overwhelming majority of Spider deals — even 4-suit ones — are theoretically winnable, yet practical results tell a different story: 1-suit players routinely win more than half their games, 2-suit players fight to stay near one in three, and 4-suit win rates without undo sink into single digits. The reason is information. At the start of a hand, 44 tableau cards lie face down and 50 more wait in the stock, so 94 of the 104 cards are unknown when you make your first move. The odds page on this site breaks the numbers down rung by rung.
Spider also rewards a particular daily-play temperament. Because a full game runs longer than a hand of Klondike — five stock deals, eight runs, and often a hundred-plus moves — regulars tend to treat each deal as a small project: open a column before the first stock deal, keep suits clean in the midgame, and save undo experiments for the moments when one buried card decides everything. Your win counts persist in the browser, so climbing from a 1-suit warm-up habit to a 4-suit record is a progression you can actually watch happen.