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Forty Thieves Solitaire: how a round works

Practice with a purpose

Begin with the objective. Select a face-up card and then the destination pile or Empty slot. Return to the explanation when a decision is unclear.

What counts as success

Build eight suit foundations from ace to king. Check the relevant controls before continuing. Begin with the objective.

How a round unfolds

  1. Move one card at a time; build down in the same suit. Empty columns accept one card.
  2. Select a face-up card and then the destination pile or Empty slot.
  3. Move exposed cards onto suit foundations in the stated rank order.
  4. Undo reverses a choice. New deal shuffles again.

Your inputs

Click or tap cards and piles. Wide tableaus scroll inside the game; use Undo, Hint and New deal where shown. Take the next action only when the current step is clear. A clear plan starts with the current position.

See the idea in action

A club 5 can move onto a club 6, but a whole run cannot move together. Take the next action only when the current step is clear.

Watch out for this

Work at your own pace. Random deals are not guaranteed solvable. A hint is a legal move, not a winning strategy. Use another round to revisit a decision.

Further help with the game

What is the aim?

Build eight suit foundations from ace to king. Keep the active rule in mind. Use another round to revisit a decision.

How do I use the controls?

Click or tap cards and piles. Wide tableaus scroll inside the game; use Undo, Hint and New deal where shown. Use the rule sheet as a reference. Check the relevant controls before continuing.

Which format is available?

Two decks, ten columns, single-pass stock, no recycle. Free solo play, no wagering. Take a moment to read the table. Use another round to revisit a decision.

What should I check before a move?

Random deals are not guaranteed solvable. A hint is a legal move, not a winning strategy. Treat this as a chance to practise one rule. Check the relevant controls before continuing.

Can you give an example?

A club 5 can move onto a club 6, but a whole run cannot move together. For a calm first round, focus on one decision. Check the relevant controls before continuing.

What completes a round?

Build eight suit foundations from ace to king. For a calm first round, focus on one decision. Use another round to revisit a decision.

Which controls should I use?

Click or tap cards and piles. Wide tableaus scroll inside the game; use Undo, Hint and New deal where shown. Use the rule sheet as a reference. Take the next action only when the current step is clear.

Which version is played here?

Two decks, ten columns, single-pass stock, no recycle. Free solo play, no wagering. Begin with the objective. Take the next action only when the current step is clear.

Does play involve an account or cash?

No. Play is free, without registration, deposits, bets or cash prizes. Begin with the objective. Return to the explanation when a decision is unclear.

What completes a round?

Build eight suit foundations from ace to king. A clear plan starts with the current position. The same rule applies on a phone and on a computer.