10-20-30 - Version 2.2 A solitaire card game that actually plays better on the computer than it does with real cards: the computer takes care of the frequent reformatting of the piles during play. You start with 4 piles plus the deck, taking cards off in groups of three that add up to 10, 20 or 30. Take cards off the top or the bottom, or a combination of the two, from the active pile. Each time you move to the next pile a card is dealt to it. Object of the game is to empty all the piles.