2 decks. Easy. No redeal.
The object of the game
Build the foundations down in alternate colors to aces.
Only the top card of each pile is available for play. You may build tableau piles up regardless of suit. One card or group of cards in the proper sequence can be moved from pile to pile. When any tableaus are empty you can fill the space with any card or legal sequence of cards.
There is no redeal.
This solitaire variation was invented by Boris Sandberg.