Double Canfield Solitaire

Two decks, eight foundations

How to play Double Canfield Solitaire

Thirteen cards go face down into the reserve with the top one turned up. Five more form the tableau, and one goes to a foundation to set the base rank. The remaining eighty-five cards are the stock, drawn three at a time with no limit on how often you may go round.

Eight foundations — two per suit — all begin at that base rank, climb in suit, and wrap past the king through the ace to finish one rank below where they started. The tableau builds down by alternating colour with sequence moves allowed, and the reserve feeds any empty column for as long as it has cards.

Feeding eight foundations

What eight foundations will accept

Managing the reserve

Double Canfield Solitaire strategy

Protect the reserve's usefulness rather than its size. A reserve card that fits somewhere real should go; one that only fits a space you did not want filled should wait.

Keep the five columns shallow early. Depth is far more expensive here than in single-deck Canfield because there are eighty-five cards still to arrive and only five places to put them.

Use both foundations of a suit. It is easy to feed one and forget the other exists, and a second foundation sitting at the base rank is thirteen cards of capacity going unused.

Stop recycling when a full pass yields nothing. Unlimited passes make it tempting to keep cycling, but the order does not change. If a complete circuit produced no move, the answer has to come from the tableau.

What stalls the table

What stalls a Double Canfield table

Racing the reserve down without a plan

Thirteen cards is the smallest reserve in the family relative to the deck it sits in — thirteen against 104, where single-deck Canfield gives you thirteen against fifty-two. Clearing it feels like progress and often is, but each card you take exposes a new one you may not want, and once the reserve is empty your spaces stop refilling themselves. Take reserve cards that go somewhere useful, not merely somewhere legal.

Building long colour runs across five columns

Five columns is not many for two decks, and alternating-colour packing makes long runs easy to assemble. Every card added to a run is another card between you and the bottom of that column. With eighty-five cards still to come through the waste, depth is the thing that ends deals.

Recycling the waste without changing anything

Unlimited passes sound generous, and they are — but a pass that produces no move produces nothing at all. The cards land in the same order. If a full circuit of the waste yields nothing, the position is stuck and another circuit will confirm it; the move that breaks it has to come from the tableau or the reserve.

Twice the deck, better odds?

Is Double Canfield Solitaire winnable?

More often than it looks, and the reason is the unlimited passes. A two-deck game with a thirteen-card reserve would be brutal on a single pass; being able to cycle the waste indefinitely means the game only truly ends when the tableau itself locks.

That also makes it a long game. Deals run to several hundred moves and the losing ones tend to announce themselves slowly. We do not publish a win rate: for the Canfield family it depends almost entirely on the draw count and pass limit, and this version draws three with unlimited passes.

What scaled up

What scaled up and what did not

Doubling a solitaire game is rarely a matter of doubling everything. The interesting column here is the reserve, because it is the one number the double version left alone.

Foundations doubled, the deck doubled, the tableau gained a single column, and the reserve did not move at all. If you find this version harder than Canfield despite the duplicate cards, that row is why.