The rank sequence doubles modulo thirteen
After Ace comes Two, then Four, Eight, Three, Six, Queen, Jack, Nine, Five, Ten, Seven, and Ace again. Suit is ignored and the opening non-King rank selects the rotation point within this cycle.
Doublets Solitaire
Place all 48 non-King cards onto the single doubling foundation.
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How to play
Place all 48 non-King cards onto the single doubling foundation.
- Deal seven non-King cards to reserve slots and an eighth non-King card to start the foundation.
- Add the next required rank in the repeating doubling sequence from a reserve or the waste; suits are ignored.
- Refill a cleared reserve from waste then stock, use up to three total passes, and collect every non-King card.
Strategy tips
- The rank sequence doubles modulo thirteen, so learn the repeating order before advancing the stock.
- Playing from a reserve also changes that slot's exposed card immediately.
- Kings never enter the foundation and can block access, so keep the remaining passes in mind when one appears.
Complete guide
Rules, scoring, and strategy
Doublets deals seven non-King reserve cards and uses an eighth to start one foundation. Cards follow a repeating doubled-rank sequence, reserves refill automatically, and the four Kings remain outside the completed 48-card foundation.
Seven reserves expose alternatives
A required rank may come from any occupied reserve or the waste. Playing a reserve card fills that slot from the waste first and then directly from stock, immediately changing the available choices.
Kings are deliberate blockers
Kings are excluded from the opening eight cards and can never enter the foundation. By the winning state, all four Kings remain in reserve slots while every stock and waste card has been processed.
Three passes preserve order
The waste may be recycled twice for three total stock passes. Because the order is not shuffled, use reserve refills to alter which cards remain exposed when a required rank approaches.
Questions players ask
What is the complete doubling order?
A-2-4-8-3-6-Q-J-9-5-10-7, then back to Ace; the opening rank rotates that cycle.
Where do the Kings finish?
They remain outside the 48-card foundation, normally occupying four reserve slots.
How many stock passes are allowed?
Three total passes are available, including two ordered waste redeals.
Related games
Windmill SolitaireRoute two decks from eight auto-refilled reserves into a 52-card cycling center foundation and four King-down corner piles.Royal RendezvousSort two decks from sixteen auto-refilled reserves into four different suited foundation patterns with no redeal.FreeCellUse four open cells to reorganize a fully visible deal and build every suit onto its foundation.Beleaguered CastleBuild four suited foundations from a fully exposed eight-column deal, using empty columns and rank-only tableau moves to free blocked cards.
