Worth it!!
This app is definitely worth the download ... it’s a must, to kill time. The simplicity and anticipation of this strategy game will have you on your toes.
Free
About
A brain training puzzle game where you merge cards horizontally or vertically to reach a sum of 21. Features endless and puzzle modes with unlimited hints and no time limits.
✓Card merging gameplay
✓Endless mode
✓Puzzle mode with custom sizes
✓Share and scan puzzles
✓Unlimited free hints
✓No time limits
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What's New in 21 Black
1.0.1
February 17, 2019
+Bug fixes
User reviews
Developer apps
FAQ
What is the main goal of 21 Black?
The main goal of 21 Black is to merge cards horizontally or vertically to make a sum of 21. You can play in endless mode to see how many 21s you can create or in puzzle mode to collapse the entire board into a single 21.
Does 21 Black have ads?
No, 21 Black does not contain advertisements. The game is 100% free with everything unlocked and nothing to purchase.
Can I play 21 Black offline?
The provided data does not specify if 21 Black can be played offline. However, its gameplay mechanics suggest it is likely playable without an internet connection.
What devices support 21 Black?
21 Black is supported on iPhone, iPad, and iPod devices. It is designed for iOS users.
How often is 21 Black updated?
21 Black was last updated on February 17, 2019, with version 1.0.1. The initial release date was November 21, 2017.
What is the age rating for 21 Black?
21 Black has an age rating of 4+. This indicates it is suitable for young children and general audiences.
What makes 21 Black unique compared to other puzzle games?
21 Black uniquely blends solitaire and blackjack mechanics into a card-merging puzzle. It offers unlimited free hints and no time limits, promoting a stress-free brain training experience.
How does the puzzle mode in 21 Black work?
In puzzle mode, you can choose from multiple puzzle sizes. The objective is to collapse the entire board into a single 21, which helps train your brain to recognize patterns and develop new strategies.
