Solitaire Zero 21

A fun solitaire that lets you kick back and relax while keeping your mind sharp. Collect all number cards on the board and complete 75 interesting levels. The object of the game is to collect all number cards from the board. Your sum must stay somewhere between 0 and 21. To do this, you can use unique cards in the same way, such as MIN, MID or MAX. These cards determine your unit's rating for ranking comparison.