2 decks. Average. No redeal.
Colonel Solitaire uses two decks (104 cards). 36 cards are dealt face up to three rows of twelve without overlapping. 8
Aces are moved to foundation piles as they become available.
A card in the rows is "available" to play if there is a gap immediately below it in the next row. All cards in the bottom row are "available" to play. You can move "available" cards to foundations. You can also place an "available" card on another "available" card downward in suit. But the destination card should lie in the same or higher row, not in the lower one.
When you have made all the moves initially available, begin turning over cards from the stock pile.
Empty places in the rows can be filled by any "available" card or from the waste pile.
There is no redeal.