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Catalyst Deluxe is an engaging solitaire card game based on the 10-20-30 game. The game consists of matching sets of three cards whose face values total 10, 20, or 30 points. For instance, a 4, a 6, and a 10 would total 20 points and could be removed. With the Ace worth one point, and all face cards worth ten points each, this is a great game for all ages to build your math skills and exercise your mind. Veteran solitaire card game players looking for a new challenge... this is it!