Klondike Solitaire is the most widely played card game in the world. If you've ever played solitaire on a computer, you've almost certainly played Klondike — it's the game that ships with Windows, the game that defines what most people mean when they say "solitaire," and the game that has been the default time-filler and brain exercise for generations of players. Learning it takes about five minutes. Playing it well takes considerably longer, and that sustained challenge is precisely why it remains so popular.
The goal is simple: move all 52 cards from the tableau and stock onto four foundation piles, one per suit, built in order from Ace to King. You win when all four foundations are complete. Getting there requires managing seven tableau columns, drawing from the stock when the tableau is stuck, and making a series of sequencing decisions that range from straightforward to genuinely demanding depending on how the deal falls.
To start a game, click the Deal button. Seven columns of cards are laid out across the tableau: the first column has one card face-up, the second has two cards with one face-up, and so on up to seven cards in the seventh column with one face-up. The remaining 24 cards sit in the stock pile in the top-left corner. When you uncover a face-down card by moving the card above it, it flips face-up and becomes available to play. When you move all cards out of a column, the empty space can be filled by a King or a King with a sequence behind it.
Cards move between tableau columns in alternating-colour, descending-rank sequences — a black 7 goes on a red 8, a red 6 goes on a black 7, and so on. When a card is ready for the foundation — any Ace immediately, then 2 of the same suit on top of it, then 3, and so on — click it or drag it to the foundation pile. The game ends in a win when all four foundations reach King.
Understanding the complete ruleset helps you avoid the subtle errors that cost games, particularly around what can and can't be moved.
The Tableau: Seven columns of cards, each with one face-up card on top of a varying number of face-down cards. Cards in the tableau are arranged in descending rank and alternating colour. A red 9 accepts a black 8; a black Queen accepts a red Jack. A sequence of face-up cards following this pattern can be moved as a unit to another valid position.
The Stock: The remaining 24 cards after the tableau is dealt, placed face-down in the top-left corner. In Turn 1 mode, one card is drawn at a time, each immediately accessible. In Turn 3 mode, three cards are drawn at once and only the top card of the three is playable. The stock can be cycled through multiple times — when the stock is exhausted, click it to reset and begin drawing again.
The Waste Pile: Cards drawn from the stock go face-up onto the waste pile. Only the top card of the waste pile is playable at any time.
The Foundations: Four piles in the top-right corner, one per suit. Each foundation is built from Ace upward. Aces go to the foundation as soon as they're accessible. Once a card is moved to the foundation, it can technically be moved back to the tableau on some platforms — though this is rarely strategically useful.
Empty Columns: When a tableau column is completely cleared of cards, only a King (or a sequence headed by a King) may be placed there. Empty columns are highly valuable — they function as temporary staging areas for complex reorganisation manoeuvres.
Winning: The game is won when all four foundation piles are complete from Ace to King. Many platforms offer an auto-complete feature that plays out the remaining moves automatically once all face-down cards have been revealed and the position is guaranteed winnable.
Most Klondike losses aren't caused by unwinnable deals — they're caused by a small set of strategic errors that players repeat without noticing. Correcting these errors produces a measurable and lasting win rate improvement.
Exhaust tableau moves before drawing from the stock. This is the single highest-impact strategic habit in Klondike. Every tableau move made before drawing from the stock might reveal a card that changes what you need from the stock entirely. Before every stock draw, scan every column from left to right for any valid tableau move — no matter how small. Only when that scan finds nothing should you draw.
Prioritise uncovering face-down cards, especially in the deepest columns. Every face-down card is hidden information. The more you uncover, the more you can plan ahead. When choosing between two equally valid moves, prefer the one that uncovers a face-down card in the column with the most remaining face-down cards.
Manage foundation timing carefully. Aces and 2s should always go to the foundation immediately. For cards from 3 upward, apply the two-colour check before moving: is the same-rank card of the opposite colour already on the foundation, or immediately available? If not, the card you're about to move may still be needed as a stepping stone in the tableau.
Treat empty columns as strategic assets. An empty column is one of the most powerful resources in Klondike — it enables complex multi-move sequences that would otherwise be impossible. When a column empties, resist the urge to fill it immediately with any available King. Ask first: which King has the longest useful sequence behind it?
Run the opening board survey. Before touching any card, spend 15–20 seconds scanning the board: locate all four Aces and their depth; identify the most obstructed columns; spot any immediately foundationable cards; note Kings available for empty columns.
Klondike is played in two standard modes that differ in how cards are drawn from the stock. The choice between them significantly affects game difficulty, win rate, and the type of strategy required.
Turn 1 (Draw One): One card is flipped from the stock at a time, and that card is immediately available to play. Turn 1 gives you complete access to every card in the stock on every pass. Win rates in Turn 1 with careful play reach 40–45%, and can approach 79% with optimal strategy. Turn 1 is the recommended mode for players learning the game and for daily challenge formats.
Turn 3 (Draw Three): Three cards are flipped from the stock at once, but only the top card of the three is accessible. This creates a strategic challenge within the stock itself: not every card is accessible on every pass. Win rates in Turn 3 with careful play sit around 20–25%. Turn 3 is the choice for experienced players who want a harder game or who enjoy the additional layer of stock cycle planning.
For competitive daily challenge play, Turn 1 is the standard format — it allows direct comparison of play quality across players without the additional luck variance that Turn 3's restricted card access introduces.
Enable unlimited undo. Unlimited undo is not cheating — it's the standard setting for skill development in online solitaire. Its highest-value use is speculative comparison at decision points: when two moves both seem reasonable, make one, evaluate the resulting board, undo, make the other, and commit to the better outcome.
Target the most obstructed column first. When you have a choice between uncovering different face-down cards, always choose the move that uncovers from the deepest column. Columns with more face-down cards take more total moves to fully expose — getting into them earlier gives you more moves to work with.
Build long sequences and move them as units. A sequence of six alternating-colour cards moved as a unit takes one move. Building long tableau sequences and preserving them intact as you manoeuvre around the board is one of the fastest routes to lower move counts.
Never abandon a game before the first full stock cycle. Many winnable games look unwinnable in the first ten moves. A difficult opening board often opens up dramatically once the first stock pass reveals what's available. Commit to at least one full stock cycle before concluding a deal is unwinnable.
Keep foundation piles roughly balanced. When one suit is significantly ahead of others on the foundation, the advanced suit's cards become unavailable as tableau stepping stones while lower suits still need them. Try to keep all four foundation piles within two or three ranks of each other throughout the mid-game.
With typical casual play, Klondike Turn 1 win rates fall in the 20–33% range. With consistent application of strategic habits — exhausting tableau moves before stock draws, careful foundation timing, empty column management — win rates rise to the 40–45% range. Optimal or near-optimal play produces win rates that research estimates at between 71% and 91%, depending on methodology.
In Turn 3 mode, win rates are significantly lower across all skill levels — typically 10–15% for casual play and up to 20–25% with strong strategic play — because the restricted stock access creates positions where needed cards cannot be reached regardless of tableau strategy.
No. Research estimates that between 79% and 91% of Klondike Turn 1 deals are theoretically winnable with perfect play, which means 9–21% of deals are unwinnable regardless of strategy. For Turn 3, the proportion of unwinnable deals is higher due to the restricted stock access.
In Turn 1, one card is drawn from the stock at a time and is immediately playable. Every card in the stock is accessible on every pass. In Turn 3, three cards are drawn at once and only the top card is playable — the cards beneath it must wait until the card above is played. Turn 3 is significantly harder: win rates are lower and stock cycle tracking becomes a required skill.
Yes — cards can be moved back from the foundation to the tableau. In practice, this is almost never strategically useful in standard Klondike, because the situations where a foundationed card is needed back in the tableau are extremely rare and typically indicate an earlier foundation timing error.
Follow this protocol in order: first, scan every column again from left to right — valid moves are often missed; second, draw from the stock and check whether the new card opens any tableau moves; third, use undo to explore whether an alternative move earlier in the game would have avoided the stuck position.
Four habits produce the most reliable improvement: always exhaust tableau moves before drawing from the stock; run a 15–20 second board survey before your first move every game; apply the two-colour foundation timing check before any foundation move above a 2; and use unlimited undo as a speculative comparison tool at decision points.
As a rough benchmark: winning a typical Turn 1 game in under 100 moves indicates efficient play; under 80 moves indicates strong play; under 60 moves is excellent. Don't compare your move count to an absolute target — compare it to your own recent average to see whether your efficiency is improving.
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