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Guide · Updated August 2026

Free FreeCell, with every deal solver-verified

FreeCell has a reputation as "the solitaire you can't lose" — and it's nearly true. Of the famous Microsoft set of 32,000 numbered deals, only one is actually unwinnable. But "almost every deal" and "this specific deal" are different claims, and most free sites deal a fresh board at random every time, meaning they're relying on good odds rather than a guarantee. Here's the difference, and how to tell which one you're playing.

Why "almost always winnable" isn't the same as "winnable"

A random FreeCell deal is overwhelmingly likely to be solvable — that's genuinely different from Klondike, where roughly a fifth of deals have no winning line at all. It's tempting for a site to treat that as good enough and just deal at random, since most players will never hit the rare loss and never know to blame the shuffle instead of their own play.

The honest version costs almost nothing extra: run every deal through a solver once, before it's ever shown to a player, and only serve the ones confirmed winnable. A site that does this can say something a randomly-dealing site structurally cannot — that when you lose, it was your line of play, not the deck.

The ten-second check

  • Is there a deal number? A numbered deal is a sign the site is serving from a fixed, checkable pool rather than dealing fresh cards every time.
  • Does it say "solver-verified" or similar anywhere? If the claim isn't made, assume it wasn't checked.
  • Is there a supermove? Real FreeCell lets you move a valid run in one action, scaled by free cells and empty columns. A site that only lets you move one card at a time is missing a core rule, not simplifying it.
  • Are there real difficulty options? Two-cell and one-cell FreeCell are established harder variants, not a gimmick — their absence suggests a shallower implementation.
  • What happens when you lose? Ads or a "keep playing?" paywall at the loss screen are common friction points in this category specifically.

Two things worth knowing before you pick a site

The supermove rule is the part most people get wrong, on any site. It looks like a convenience feature, but it's a real rule with a real formula: the number of cards you can move at once is (free cells + 1) × 2^(empty columns). Open cells and empty columns aren't just storage — they're what let you relocate a long run in one action instead of laboriously walking it one card at a time. Understanding this is the single biggest jump in actually solving FreeCell deals rather than getting stuck.

Fewer free cells is the real difficulty dial, and it isn't automatically solvable. The standard game gives you four free cells. Playing the same deal with two, or with just one, is a recognised harder variant — but a deal verified winnable with four cells has no such guarantee with fewer, since the whole solve depends on how much temporary space you have to work with. A site offering cell-count options without flagging this is quietly overselling its "always winnable" claim.

Our own answer

What we built, held to the same checklist

Our disclosure: we're SnackPack Studios, and the checklist above describes what we aimed at. Our FreeCell deals from a pool of numbered boards that have each been run through a solver and confirmed winnable with four free cells — the deal number is shown in the toolbar, so the claim is checkable, not just asserted.

Full supermove support, unlimited undo and redo, a Hint button, and Auto-finish once a game is fully solvable from where you are. Four, two and one free-cell modes are all available — with the honest caveat, right in the UI, that the fewer-cell modes use the same board but aren't guaranteed solvable. A daily mode serves the same verified-winnable deal to everyone on a given day.

No account, no ads, no cookie banner. Our Klondike Solitaire runs on the same kind of verified pool, so the guarantee holds there too. Spider Solitaire is also in the arcade — it deals at random rather than checking for solvability, which is how Spider is traditionally played, so we say so plainly rather than implying a guarantee that isn't there. All three are installable and playable offline. We fund it through the optional Android app's one-time Pro unlock and the occasional tip — the honest answer to "how does this pay for itself".

Common questions

Is every FreeCell deal winnable?

Almost — in the famous Microsoft set of 32,000, only one deal (#11982) can't be won. That's not a guarantee for any specific deal unless a site actually checked it with a solver first.

What's the supermove rule?

A shortcut for moving a valid run of cards in one action instead of one at a time. You can move (free cells + 1) × 2^(empty columns) cards at once — more open space means a bigger supermove.

What does "solver-verified" actually mean?

A program played the deal through and confirmed a winning line exists before a player ever saw it. Without that check, a site is dealing at random and hoping the odds hold.

What's the difference between 4, 2 and 1 free-cell modes?

Fewer cells means less temporary space to work with, which is a much harder puzzle on the same board — and a deal verified winnable with four cells isn't automatically solvable with fewer.

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