Find out if you are ready for the ultimate challenge: 16x16 Sudokus.
About 16x16 Sudoku Challenge HD
16x16 Sudoku Challenge HD is a puzzle app developed by Tobias Eckert.
Download Statistics
16x16 Sudoku Challenge HD has been downloaded 73 thousand times. In the last 30 days, the app was downloaded 16 times.
User Ratings
16x16 Sudoku Challenge HD is rated 3.89 out of 5 stars. The rating is based on 330 ratings.
App Information
16x16 Sudoku Challenge HD is FREE to download. The APK download size is 6.60 MB. The latest version available is 4.1. The last update was on January 19, 2026.
Technical Requirements
16x16 Sudoku Challenge HD requires Android 4.4+ or higher. The app has a content rating of Everyone. The app has been available on Google Play before 2010.
Description
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, tablets, Chromebooks, PCs and Android TV - Solve the build in challenge of 30 Sudokus, and play an unlimited number of Sudokus in Training 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
Recent changes: Fixed the menu display on Android TV
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Love it. Very hard. Mayhem and guru levels can be solved with no guessing. Just started insane level. Great challenge for sudoku lovers.
★★★★★A Google user· Nov 23, 2017
Some standard features like error checking would be helpful. Good 16 x 16 puzzles.
★★★★☆Cidalia Perez· Aug 1, 2016
I Love this Game/just need more levels Just need more levels. I also would request is that the penciled in #'s to larger. To be able to read the little penciled in numbers. Especially, in the harder levels. Other than that, I Love this game.
★★★★☆Dave Hurlbut· Oct 9, 2016
Challenging Thank you for removing the blinding background. I enjoy this app, but wish the saved fields would stay saved until restored. Coming back to the game after a break seems to make it forget the previous saved fields. I would rate it a 5 if there was a checker for wrong fields. Don't want the solution but a checker to make sure I am on the right track could save hours of wasted time.
★☆☆☆☆Frank Biggar· Dec 26, 2023
Unless I am missing something, this appears to offer a small number (at most 30) of 16x16 Sudoku games, most or all of which are locked in levels 2 and 3, which presumably unlock once you play through level 1, which starts as 9x9, and may be all 9x9 - there seems no point in me trying to find out when the Vistalgy Sudoku app, even tho it doesn't advertise itself as 16x16, already has excellent 16x16 games (in both standard and variant versions, at your choice of difficulty level, etc.).
★★☆☆☆Stephanie.E. Sanders· Apr 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.
★☆☆☆☆kevgermany· Jul 30, 2016
Crap Opened with flashing box saying there were viruses on the phone, hadn't even had a chance to scan it. Uninsulated it immediately. Maybe the game's ok, but intrusive crap like this is out.
★★☆☆☆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.
★☆☆☆☆Diane Williams· Jan 13, 2022
It did work on one of my tablets. Now if it could update on this tablet it would be great. Tap a block to put in the answer, and it goes to another instead.
Google Play Rankings for 16x16 Sudoku Challenge HD
This app is not ranked
Technologies used by 16x16 Sudoku Challenge HD
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