21 Solitaire is a collection of 7 solitaire card games based on a Blackjack theme. The object of the games is to make Blackjack hands, hands that total 21 in value. These highly original games, found nowhere else, blend classic solitaire themes with the excitement of Blackjack. 21 Solitaire features undo, sound, and comprehensive statistics. High scores can be submitted to the 21 Solitaire web site high scores list.