Takuzu by Magpie
Daily binary puzzle, no ads
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
A fresh binary puzzle every day, the same for everyone. Black and white stones, one answer, pure logic. No ads, no purchases, no account.
Takuzu is the binary puzzle: fill the grid with black and white stones so that
• every row and column has as many black as white,
• no three of the same colour sit side by side,
• no two rows are the same, and no two columns.
Magpie gives you a new daily puzzle, the same board for everyone, and as many practice games as you like in three sizes: 6×6, 8×8 and 10×10.
• No ads, ever. No purchases, no account.
• Every puzzle has exactly one answer, and logic alone gets you there. No guessing.
• Break a rule and Magpie tells you which one, in plain words.
• Mistake checking is optional, off by default for the full challenge.
• Undo, and a hint that places a stone you could have worked out.
• Share your daily time without spoiling the grid.
• Works offline. Nothing leaves your iPhone.
Privacy policy: https://moecui22.github.io/magpie/privacy/
Ratings & Reviews
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The developer, Mo Cui, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Mo Cui
- Size
- 1.4 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Eric Cui