You're deep into a game of Klondike Solitaire. You've been playing for 10 minutes, cycling through the stock pile, and nothing seems to work. You start wondering: is this game even winnable, or am I wasting my time?
It's one of the most common questions solitaire players ask — and the answer might surprise you. Some Klondike Solitaire deals are mathematically impossible to win, regardless of how well you play. Here's everything you need to know about solitaire winnability, and how to check whether your specific game has a solution.
Play Solitaire with Winnable CheckerThis is the most important thing to understand about Klondike Solitaire: the game is not always solvable. When you shuffle a standard 52-card deck and deal it into the Klondike layout, the random arrangement of cards can create situations where no sequence of legal moves leads to victory.
This isn't a flaw in the game — it's a fundamental aspect of what makes Klondike Solitaire interesting. Unlike FreeCell (where almost every deal can be won), Klondike's unwinnable deals mean that recognizing when to give up and deal again is itself a skill.
The question is: how do you tell the difference between a game you can't win and a game you haven't figured out yet?
Researchers have studied Klondike solvability since the 1990s. The most precise result comes from a solver study by Charlie Blake and Ian Gent. Their solver sees every card, including the face-down ones, and may cycle the stock without limit (Blake & Gent, 2026). Players do not see the face-down cards, so their results are a different number.
of Draw 1 deals winnable
~82% of Draw 3 deals · Blake & Gent (2026)
of Draw 1 games won
15.5% of Draw 3 games · unfinished games count as not won
Key point: the two figures measure different things. The solver sees every card; players do not. The solver figure is a ceiling for perfect play with full information, and it is lower in Draw 3 because fewer Draw 3 deals have a solution at all. The player figure counts wins among all games started on TrySolitaire in August 2026, with games left unfinished counted as not won (August 2026 player report).
The gap between the solver figure and the player figure is the room for improvement. A solver can tell you a game is solvable. Finding the winning sequence among thousands of moves is the actual skill.
Keep the two kinds of number apart. Many pages mix solver figures and player figures. A solver figure tells you how many deals have a solution when every card is known. A player figure tells you how many started games people actually won. When you compare sources, check which of the two a number measures.
Unwinnable Klondike deals are caused by the random shuffle creating configurations where critical cards are permanently inaccessible. Here are the most common reasons a deal can't be won:
Kings are the only cards that can fill empty tableau columns. If all four Kings are buried deep in the tableau with large numbers of face-down cards above them, it may be impossible to create the empty columns needed to reorganize the board. Without empty columns for temporary card storage, many moves become impossible.
Sometimes low-ranked cards (Aces, 2s, 3s) needed for the foundations are trapped under higher-ranked cards in the stock pile or tableau. If the only way to access these cards requires moving other cards that themselves have nowhere to go, the game reaches a deadlock.
The most insidious unwinnable pattern is a circular dependency: card A can only be moved if card B is moved first, but card B can only be moved if card C is moved first, and card C can only be moved if card A is moved first. This creates an impossible loop that no sequence of moves can break.
In Draw 3 mode, only every third card in the stock pile is directly accessible during a given pass. If critical cards fall in positions that are never directly accessible (always covered by two other cards), they can become permanently trapped. This is the primary reason Draw 3 has a much lower winnability rate than Draw 1.
While only a solver can definitively determine winnability, these warning signs suggest a game may be unwinnable:
However, these signs are not definitive proof. Some games that look hopeless can still be won with creative move sequences. The only way to know for certain is to use a solver.
Yes. This is a crucial point that many players don't realize: even if a deal starts with a winning path, your moves can close that path off and make the game unsolvable from your current position.
For example:
This is one of the most valuable aspects of TrySolitaire's built-in solver: it can detect when a move has made your game unsolvable and offer to undo back to the last winnable position. This "Undo to Last Winnable" feature lets you try a different approach without starting over.
TrySolitaire includes a free built-in solver that checks your game's solvability in real time. Here's how to use it:
Look at the solver status icon in the game toolbar. It automatically updates as you play:
At any point during your game, click the solver icon to trigger a fresh analysis. The solver searches up to 30 million positions, for up to 60 seconds, to determine whether a winning path exists from your exact current position — accounting for every move you've made.
The solver also runs automatically in the background. When you start a new game, it immediately begins analyzing the deal. If at any point it detects that your game has become unsolvable (typically after a move that closed off the last winning path), the icon turns red. Click it, and a recovery panel offers to take you back to the last winnable position.
The Hint button uses the same solver. When it has found a winning line from your position, the hint shows that line's next move, with an arrow and one sentence that says why. When its search proves the game lost, the hint offers no move and opens the recovery panel instead. A hint costs no points.
If you want to guarantee that every game you play is solvable, use the "Deal Winnable" feature:
This is especially valuable for:
A winnable deal means a solution exists — it doesn't mean the solution is obvious. You still need strategy, planning, and skill to find the winning move sequence. Many winnable deals have only one or two viable paths among thousands of possible move sequences. The solver guarantees the game can be won; winning it is still up to you.
The draw mode you choose changes how many deals can be won:
| Aspect | Draw 1 (Turn 1) | Draw 3 (Turn 3) |
|---|---|---|
| Solver: winnable deals (every card known) | ~90% | ~82% |
| Our players, Aug 2026: games won | 35.3% | 15.5% |
| Card Accessibility | Every card individually accessible | Only every 3rd card directly accessible |
| Solver Value | High | Very high |
| Deal Winnable Impact | Moderate improvement | Dramatic improvement |
The difference in winnability between Draw 1 and Draw 3 is caused by card accessibility. In Draw 1, you can reach every card in the stock pile one at a time. In Draw 3, you draw three cards but can only play the top one. The other two become temporarily inaccessible until you cycle through the entire stock and return to their position. This creates many more dead-end situations.
If you're frequently frustrated by unwinnable games, consider switching from Draw 3 to Draw 1, or use the "Deal Winnable" feature to guarantee solvable games in either mode.
No. Some Klondike deals are mathematically impossible to win: a solver that sees every card can win about 90% of Draw 1 deals and about 82% of Draw 3 deals (Blake & Gent, 2026). The random card shuffle creates configurations where critical cards are permanently blocked, making it impossible to complete all four foundations regardless of how perfectly you play.
Use TrySolitaire's built-in solver. The solver icon in the toolbar shows a green checkmark if your game is winnable or a red X if it's unsolvable. Click the icon at any time to check your current position. A check you ask for searches up to 30 million positions, and most finish within seconds.
Yes. Making wrong moves can close off the winning path and leave you in an unsolvable position. This is why TrySolitaire's "Undo to Last Winnable" feature is so valuable — when the solver detects you've reached an unsolvable state, it can automatically rewind to the last position where a winning path existed.
In Draw 3 mode, you draw three cards from the stock but can only play the top one. This means two-thirds of stock cards are not directly accessible on any given pass. Critical cards often get trapped between unusable cards, creating permanent blockages. This reduces winnability: a solver that sees every card wins about 90% of Draw 1 deals but about 82% of Draw 3 deals (Blake & Gent, 2026). Players feel the gap even more: in August 2026, TrySolitaire players won 35.3% of the Draw 1 games they started and 15.5% of the Draw 3 games, counting unfinished games as not won.
Use the "Deal Winnable" option in TrySolitaire's new game menu. The solver verifies that the deal has at least one winning path before it's dealt to you. This works for both Draw 1 and Draw 3 modes, guaranteeing every game you start is solvable.
Not unless you ask. The solver icon only tells you whether a winning path exists, so the challenge of finding the solution stays yours. If you want help, press Hint: when the solver has found a winning line, the hint shows its next move, one move at a time.
Yes. The solver is completely free with no limitations and no account required. It runs entirely in your browser — your game data never leaves your device. All solver features including solvability checking, Deal Winnable, Undo to Last Winnable and hints are included at no cost.
It varies by variant. Almost every FreeCell deal can be won: a solver study found 99.999% of random deals winnable (Blake & Gent, 2026). For Pyramid, under the rules played here, our exhaustive solver cleared 67.5% of 10,000 random deals. Each variant has its own solvability profile based on its rules and mechanics. Currently, TrySolitaire's solver is available for Klondike Solitaire.
Play Klondike Solitaire with a built-in solver — never waste time on impossible games again.
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