1 deck. Easy. 2 redeals.
Aces are moved to the foundations as they become available.
The top cards of tableau piles, waste and reserve piles are available to play. You may build tableau piles down in suit. When one of tableaus is empty it immediately fills up with a card from the reserve pile.
When you have made all the moves initially available, begin turning over cards from the stock pile.
There are two redeals.