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, combine classic solitaire themes with the excitation of Blackjack. 21 Solitaire's features include statistics for each gage (including numeral of games played, ordinary score, and your ten best dozens for each gage), the ability to mail your gage statistics on a cosmopolitan high-score prorogue, a fully-configurable riddle background (with a user-selectable coloration, wallpaper, bitmap, or gradient), hands can be selected at random or by numeral, multimedia sound effects, a comprehensive context-sensitive helper system, nearly unlimited numeral of undo levels (limited to one undo in the shareware rendering), two card sizes (allowing the gage to adapt to most any riddle size), fully-resizable gage windows (with card layouts that compact and extend to wield any window size), a customizable toolbar with pop-up hints, as intimately as a right-click context menu, sustain for 16-color, 256-color, and 16-bit (High Color) graphics, and games in progression are automatically saved to disc when you exit, and automatically restored when you play again.