Sixy Sudoku is made and published by PZZL.com. AppBrain is an independent app data site and isn't affiliated with PZZL.com. The app name, icon, screenshots and description belong to PZZL.com and are shown as published on the App Store.
AppBrain's verdict
Established- Rating on App Store
- 4.20
- 5 ratings
- Last updated
- August 20, 2026
- Size
- 35.5 MB
It doesn't have enough ratings yet to judge what users think.
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Store listing
By PZZL.com, from the App Store
Description by PZZL.com Written by the developer, not by AppBrain. Click to read.
Sixy Sudoku adds a fourth constraint to the familiar three, and that changes everything: the small grid stays easy to read, but the solving asks real work. Even the hardest Sixys take far less time than a 9×9 — without feeling easier.
Invented by Peter Ritmeester and first published in The New York Times on July 21, 2019.
How it works
Place the digits 1 to 6 once in every row, every column, every bold-outlined area — and every colored area
That last one is the extra layer. It is what makes Sixy Sudoku much harder en much more interesting.
In the app
500 free puzzles across five difficulty levels, in two shapes: Regular and Wacky. Notes, timer, and your best times per level. More puzzle packs available as in-app purchases.
Made by PZZL.com
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 35.5 MB
- Content rating
- Everyone
Technologies used by Sixy Sudoku
Releases
Updates seen on the App Store- Version
- 1.3
- Launched
- July 2019
No changelog data
Alternatives
Similar apps and more from PZZL.comAlternatives to Sixy Sudoku
Also available on Google Play
Rankings
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About the app and developer
About Sixy Sudoku
Sixy Sudoku is a games app developed by PZZL.com.
User Ratings
Sixy Sudoku is rated 4.20 out of 5 stars. The rating is based on 5 ratings.
App Information
Sixy Sudoku is freely available from the App Store. The app size is 35.49 MB. The latest version available is 1.3. The last update was on August 20, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since July 2019.
Developer information for PZZL.com
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