16x16 Sudoku Challenge HD

Contains ads
4.0
450 reviews
50K+
Downloads
Content rating
Everyone
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About this game

9x9 Sudokus bore you? Find out if you are ready for the ultimate challenge: 16x16 Sudokus.

This is for highly advanced Sudoku Players only.

- Play 4x4, 9x9 and 16x16 Sudokus - and unlock the ultimate challenge
- Touch-Screen, Trackball and Keyboard support
- Pencil in functionality
- Resume games where you left off
- Ease to understand tutorial
- Optimized for phones and tablets
- Solve the build in challenge of 30 Sudokus, and play an unlimited number of Sudokus in Free Play mode (Sudoku generator)
- Portrait or landscape mode (just turn your device)

Not recommended for beginners.

Free, with ads.

With downloading the game, you explicitly agree to the Terms of Usage set forth at: http://www.apptebo.com/game_tou.html
Updated on
Sep 26, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App activity, App info and performance, and Device or other IDs
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
You can request that data be deleted
4.0
450 reviews
Amanda E. Davis
February 28, 2021
I love sudoku challenge 16x16 and this is the best app I've found so far. However, I rated this app with only 3 stars because the biggest problem for me is that the colors of the grid make the numbers and letters so hard to see. It's hard to work on a puzzle when you have to squint your eyes just to read the chart. However, if this problem can be fixed I will happily change my rating.
17 people found this review helpful
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Stephanie.E. Sanders
April 28, 2022
Disappointed that I am unable to save my game when I have to stop part-way through. I have tried the "field-save" functions and they don't work consistently. There are no instructions on how to save a game. Also I would like some error-checking function. Sadly, I will uninstall this game.
5 people found this review helpful
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tomatokage
May 5, 2022
For a game that advertises itself as 16x16, it is frustrating that 16x16 boards are locked until you prove yourself on 9x9 puzzles first. I downloaded this game because I already know I can handle 16x16 and am bored by 9x9 puzzles. They are no longer challenging for me. Doesn't have the convenient features I've grown to love in other sudoku apps, such as removing penciled-in entries once you've decided on a match somewhere else in a row.
3 people found this review helpful
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Tobias Eckert
May 7, 2022
Thanks for your feedback. You can directly start with 16x16 Sudokus by selecting the challenge instead of free play. Automated features are lacking on purpose - that's the challenge.

What's new

Bug Fixes