Select a column for each card. The goal is to create stacks of cards that add up to exactly 21 with similar rules to blackjack.
Four By 21 is a free software application from the Card Games subcategory, part of the Games & Entertainment category.
The app is currently available in English and it was last updated on 2015-11-02. The program can be installed on Android.
Four By 21 (version 3.2) has a file size of 12.58 MB and is available for download from our website.
Just click the green Download button above to start. Until now the program was downloaded 0 times.
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