Beleaguered Castle rewards patient, far-sighted planning.

History and background

Beleaguered Castle — also known as Laying Siege — is one of the oldest and most purely strategic patience games. It belongs to the open-packer family, where all cards are visible and the challenge is entirely about finding a legal order of moves rather than managing unknown information.

The game is thought to have appeared in patience literature in the late nineteenth century. It is related to Citadels, Streets and Alleys, and other games that use a similar flanking layout around central foundations. Among this family, Beleaguered Castle is typically considered the hardest because it removes Aces from the tableau before dealing, starting the foundations immediately but making the rest of the deck harder to sequence.

Win rates for Beleaguered Castle are estimated around 10 to 20 percent depending on the implementation. Because all information is available from the first move, every loss is attributable to a suboptimal sequence of moves — there is no luck component once the deal is made.

How the game is set up

Beleaguered Castle uses a standard 52-card deck. Before the deal, the four Aces are removed and placed as the four foundation starters. The remaining 48 cards are dealt into eight columns of six cards each, laid out horizontally on either side of the foundation strip.

• Foundations — Four piles, one per suit, starting with Aces. Build upward by suit from Ace to King.
• Tableau — Eight columns, all cards face-up. Builds downward by rank only — suit does not matter. A 7 can move to any 8, regardless of suit or color.
• Movement — Only the top card of each column moves. No groups. One card at a time.
• Empty columns — Receive any single card.

The 2s liberation problem

Because the Aces are already on the foundations, the 2s are the immediate next target. Until all four 2s reach their foundations, no further foundation progress is possible in any suit. Every buried 2 is a bottleneck that delays the entire game.

Before making any move, locate all four 2s in the tableau. Count how many cards are above each 2 (blocking it) and trace whether those blocking cards can be moved to valid destinations without creating circular dependencies.

Rank-only sequencing: the strategic implications

Because tableau sequences build by rank only (any suit can follow), there are more legal destinations for every card than in Klondike or FreeCell. A 7 has eight possible home columns (any 8) rather than two (only black or red 8s).

This sounds generous, but it creates a subtle trap: which 8 you place the 7 on matters enormously for future moves. If the 8 you chose is the same suit as the 7, it cannot go to the foundation until after the 7 does — they are now chained in a dependency. If the 8 is a different suit, no foundation dependency is created.

Empty columns as planning tools

Without free cells, empty columns are the only temporary storage available in Beleaguered Castle. An empty column allows you to move one card aside to access what is below it — the same role a free cell plays in FreeCell, but you get access to it only once per column clearing.

Creating an empty column requires moving all six cards out of a column — a significant investment. Only attempt this when:

• The column is short (few cards remaining after normal play).
• The cards in that column are all needed on other foundations or can be distributed easily.
• You have a specific, immediate plan for using the empty column to break a dependency.

Using an empty column without a plan is the most common losing mistake. Parking a high card in an empty column “to get it out of the way” and then having nothing to place in the column again means you wasted the only temporary storage you have.

Strategic priorities in order

1. Survey the full tableau before any move. With complete information available, there is no reason to move until you have identified the primary bottlenecks — buried 2s, circular dependencies, and columns that are close to clearable.
2. Plan the liberation sequence for each 2. Work backward from each 2: what moves in what order expose it without creating a worse problem elsewhere?
3. Prefer moves that simultaneously expose a low card and clear a column.These two goals compound: an empty column gives you the flexibility to continue the liberation sequence.
4. Advance all four foundation suits roughly in parallel.Letting one foundation fall far behind the others creates a bottleneck when high cards in that suit need to clear but the foundation is not ready to receive them.

Common mistakes

• Making any available move without a plan. Legal moves are plentiful in Beleaguered Castle. This is a trap, not an advantage — acting without a clear goal creates dependencies that are expensive to reverse.
• Parking a high card in an empty column. A King or Queen in an empty column is a long-term liability. Only rarely does putting a high card in an empty slot advance the low-card liberation you actually need.
• Same-suit stacking without awareness. Building same-suit sequences creates foundation dependency chains. In a game where move ordering is everything, avoidable dependencies should be avoided.