2 decks. Easy. No redeal.
Pairs Solitaire uses 104 cards (2 decks). You have 9 tableau piles with 5 cards in each pile.
The object of the game
To discard all the cards in pairs of the same rank.
Select pairs of cards of the same rank by using the mouse. Only the top cards of piles are available to play.
When you have made all the moves initially available, click on the stock pile to fill all tableau piles up to 5 cards.
There is no redeal.