Double Klondike is Klondike played with two decks. Same rules; bigger table. Nine tableau columns, eight foundations, and a 59-card stock replace Klondike's seven, four, and 24. The game is longer (15–30 minutes) and the layout has space for sequences ten or more cards long. Free in your browser, no sign-up. Works offline once the page has loaded.
Goal: build all eight foundations from Ace to King by suit. Two foundations per suit means each suit gets completed twice.
Same rules, different scale. The bigger board changes which moves matter.
| Aspect | Klondike | Double Klondike |
|---|---|---|
| Decks | 1 (52 cards) | 2 (104 cards) |
| Tableau columns | 7 | 9 |
| Foundations | 4 | 8 (two per suit) |
| Stock | 24 cards | 59 cards |
| Game length | 5–10 minutes | 15–30 minutes |
No study has measured how many Double Klondike deals can be won. For single-deck Klondike, a solver that sees every card can win about 90% of Draw 1 deals and about 82% of Draw 3 deals (Blake & Gent, 2026). Two extra columns and unlimited redeals give you more room to work through the doubled card count.
Choose Draw 1 or Draw 3 before you start. Unlimited undo, statistics by mode, and a daily challenge that gives every player the same deal that day. Install it as an app from your browser menu to play offline.
It depends on the metric. There are twice as many cards to track, but also two extra tableau columns and unlimited redeals to compensate. No study has measured Double Klondike win rates. The clearest differences are game length and the number of decisions in each game.
Most games take 15 to 30 minutes — roughly two to three times Klondike. The longer playtime is the main reason some players prefer it: it's a more involved session per game rather than a quick break.
Nobody knows for sure. Double Klondike has no published solvability study. For single-deck Klondike, a solver that sees every card can win about 90% of Draw 1 deals and about 82% of Draw 3 deals (Blake & Gent, 2026), so some single-deck deals cannot be won at all.
Draw 1 if you're learning the game or want a more reliable session. Draw 3 if you want the traditional challenge. The deals are the same in both modes; Draw 3 just makes useful cards harder to reach because two of every three are buried mid-triplet.
No. Both use two decks, but the rules are different. Spider builds down regardless of suit and clears the board by completing King-to-Ace runs in a single suit. Double Klondike builds down by alternating color and clears the board by sending every card to one of eight foundations. Spider has no foundations to fill manually; Double Klondike has eight.