How to Play Forty Thieves Solitaire
Forty Thieves Solitaire (also known as Napoleon at St. Helena or Big Forty) is a challenging two-deck solitaire game where you build eight foundation piles using same-suit ascending order, with single-card-only moves on the tableau. It is one of the hardest mainstream solitaire variants, requiring careful planning and patience. The legend says Napoleon played this game during his exile on St. Helena, though this is likely apocryphal.
About Forty Thieves Solitaire
Forty Thieves Solitaire — also known as Napoleon at St. Helena, after the French emperor who reportedly played it during his exile — is widely regarded as one of the most difficult solitaire games ever created. Using two complete decks (104 cards), this game demands extraordinary patience, precise planning, and the willingness to think many moves ahead.
Forty cards are dealt face-up across ten tableau columns of four, with the remaining 64 cards forming a massive stock pile. You must build eight foundation piles by suit from Ace to King, but the constraints are severe: only one card can be moved at a time (no multi-card moves), and tableau columns must follow same-suit descending order. This means building a sequence of Hearts 10-9-8 is valid, but mixing a Heart 10 with a Spade 9 is not.
With a win rate of roughly 10% even for skilled players, Forty Thieves earns its reputation as the ultimate solitaire challenge. The two-deck format means you will encounter duplicate cards that can block critical sequences, and the single-card movement restriction makes every misplaced card potentially game-ending. This is the game for solitaire veterans who have mastered Klondike and Spider and want a true test of their card-playing abilities.
1Game Setup
- 1Shuffle two standard 52-card decks together (104 cards total).
- 2Deal 40 cards face-up across ten tableau columns (4 cards per column).
- 3All dealt cards are face-up — there are no hidden cards.
- 4Leave space for eight foundation piles (two per suit).
- 5Place the remaining 64 cards face-down as the stock pile.
- 6Leave space for a waste pile next to the stock.
2Rules
- 1Build tableau columns in descending order by same suit (e.g., 7 of Spades on 8 of Spades only).
- 2Only one card can be moved at a time — no group moves, even if the sequence is valid.
- 3Any card can be placed on an empty tableau column.
- 4Build foundations by suit in ascending order: Ace, 2, 3, ... King. Since there are two decks, each suit has two foundation piles.
- 5Draw one card at a time from the stock to the waste pile.
- 6The top waste card is always playable to the tableau or foundations.
- 7Win by moving all 104 cards to the eight foundation piles.
- 8The stock is not recycled — once all 64 cards are drawn, no more draws are available.
- 9Same-suit descending on tableau means you must match both rank AND suit (not just color).
- 10You cannot move multiple cards at once, even in a perfect sequence — only single cards.
- 11The game is lost when no valid moves remain.
- 12Cards can be moved from foundations back to the tableau if needed.
!Strategy Tips
- Play Aces to foundations immediately. With two decks, Aces are essential and should never stay in the tableau.
- Empty columns are your most valuable resource. Use them as temporary storage for single cards.
- Build foundations as evenly as possible. Large gaps between foundation levels create bottlenecks.
- Plan multiple moves ahead. Since only one card moves at a time, rearranging the tableau is expensive.
- Avoid covering important cards. Before placing a card on a tableau column, check if any card beneath it is needed soon.
- Draw from the stock sparingly. Each draw adds a card to the waste that may be hard to access later.
- Track both copies of each card. Knowing where both 7 of Hearts are helps you plan which one to use for building.
- Do not rush to fill empty columns. An empty column is more useful than a column with a random card.
- Focus on uncovering the second Ace of each suit early — you need both to complete the game.
- When stuck, draw from stock one card at a time rather than in bulk — assess each new card before drawing again.
?Frequently Asked Questions
Why is it called Forty Thieves?
The name comes from the 40 cards initially dealt to the tableau. Some connect it to the Arabian Nights story of Ali Baba and the Forty Thieves.
How many decks does Forty Thieves use?
Two standard 52-card decks (104 cards total). 40 are dealt to the tableau, and 64 go to the stock pile.
Why can I only move one card at a time?
Single-card-only movement is the core rule of Forty Thieves. This restriction makes the game much harder than Klondike or Spider, where you can move sequences as groups.
How many foundations are there?
Eight foundations — two for each suit (since there are two decks). You need to fill all eight to win.
Is Forty Thieves harder than Spider?
Forty Thieves is generally considered harder than four-suit Spider, with a win rate around 10%. The single-card movement rule severely limits your options.
Can I recycle the stock pile?
No. Once all 64 stock cards have been drawn, no more draws are available. Manage your stock draws carefully.
What is the difference between same-suit and alternating-color building?
In Forty Thieves, tableau cards must match both rank AND suit (same-suit descending). In Klondike, you only need alternating colors (red-black). Same-suit is much more restrictive.
Is Forty Thieves also called Napoleon at St. Helena?
Yes. Legend says Napoleon Bonaparte played this game during his exile on St. Helena island, though historians debate this claim. Other names include Big Forty and Roosevelt at San Juan.