The Foundations typically begin with Ace and are built up to King.

Tableaus must be built down by alternating colors.

The top card of each cascade begins a sequence.

Some alternate rules use from four to ten cascades.

Cards are dealt face-up into eight cascades, four of which comprise seven cards each and four of which comprise six cards each.Some alternative rules use between one and ten cells. There are four open cells and four open foundations.Microsoft FreeCell is so definitive for many FreeCell players that many other software implementations strive for compatibility with its random number generator in order to replicate its numbered hands.

Microsoft has included a FreeCell computer game with every release of the Windows operating system since 1995, greatly contributing to the game's popularity among users of personal computers, even leading to the creation of several websites devoted to FreeCell. Although software implementations vary, most versions label the hands with a number (derived from the seed value used by the random number generator to shuffle the cards). It is fundamentally different from most solitaire games in that very few deals are unsolvable, and all cards are dealt face-up from the very beginning of the game. FreeCell is a solitaire card game played using the standard 52-card deck.

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