2 decks. Easy. No redeal.
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Square Solitaire uses 104 cards (2 decks). You have 12 tableau piles with one card per pile and 8 foundations. Twos are moved to the foundations as they become available.
The object of the game
To build the foundations up in suit to aces.
The top cards of tableau piles and the waste pile are available to play. You may build tableau piles down in suit. One card or group of cards in the proper sequence can be moved from pile to pile. Spaces are automatically filled from the waste or stock piles.
When you have made all the moves initially available, begin turning over cards from the stock pile to the waste pile.
There is no redeal.
This is the same game as Courtyard, using twos for foundations instead of aces.