Solver App for Android
Strategies for Popular Number Puzzles

Sudoku Solver for Android

Welcome to the project page for the SudokuWiki Solver
app for Android.
Now on version 1.78 - 20th of March 2020
Search for "SudokuWiki"
Get it on Google Play
Now in stores Search for
"Sudoku Solver"
Sudoku Solver

Change Log

Version 1.78, 20th March 2020
  • Updates to the core engine sudoku strategies to version 2.19
  • New WXYZ algorithm
  • Added SK Loops
  • Added URs to Chains
  • Refresh of the documentation

Version 1.77, 26th November 2017
  • Updates to the core engine sudoku strategies to version 2.12
  • Additional captures in Nice Loop strategies
  • Refresh of the documentation
  • Checked and replaced example puzzles in case outcomes had changed

See all the update notes at the end of the development page. Approved on Google Play (World-wide) Approved on (seems to be just USA at the moment) Please leave a review. I'd love to hear your feedback. Any issues email me directly - bugs are easy to fix. The build log and progress update on the upgrade version has been moved to a new page.

Sudoku Solver and Grader
This App contains the full 9x9 Sudoku Solver as seen on this website. This includes the Grading feature and Solution Counter.
364 Practice Puzzles
Expanded Samples List: now organized into groups that focus on a specific strategy.
Smartphone to Tablet
Four different layouts have been designed to match the many different Android screen sizes and pixel densities from Smartphones (minimum 480x800) to tablets (1280x800).
Strategy Guides
Included are all the strategy documentation found on this site and each example can be loaded into the solver at a click.
Puzzle Feed
The Daily and Weekly puzzles on this site are now automatically downloaded into the App!
The solver board can be set to several color schemes including high contrast colors.
Keep track of the puzzles you solve with an almost limitless list entry - each nameable.
New to our solver - Instead of just "Take Step" use "Hint" to give you the strategy to look for without revealing the whole answer.
Better than the website with real 'state' saving - quit, resume any time and a start to end 'back' and 'forward' buttons.
Screen Shot 1
View more Screen Shots
Access to the main features from the home page
Note: Screen shots have been taken from a 480x800 device and shrunk by half. Other devices may have higher screen resolutions and marginally different layouts.

Feedback and Wish-List

You feedback will be most welcome. If you have an idea for a new feature or improvement, don't be shy. Often these can be implemented very quickly. Bugs and other issues most gratefully received.

  • I am not 100% certain the different layouts groups I've designed will perfectly match all screen densities and resolutions. If you think the solver page or main page looks a little odd - either clipping or too much padding - please let me know. I can add more layouts. Please include the screen information found at the end of the Preferences screen.

  • Practice Puzzles - puzzles that contain specific strategies

  • A future upgrade will contain the Sudoku X and Jigsaw Sudoku puzzles - complete step-by-step solvers including grading and solution count. There will be an editor for entering Jigsaw patterns not found on this site or in my puzzles.

  • I will explore Camera Capture. This is the only major feature present in the iPhone version that's not in this app. Something I'd like to do but it will require a lot of research.

  • The 'hint' system could use some more work. I prefer the three levels of hints in the iPhone version and I'll be working towards this in later versions. Currently the hint system reveals the strategy used and colors some cells and candidates, but not the eliminations. This can be too much for some strategies and too little for others. Two levels of hints are now in the App

  • The app has the ability to call and email program with a link to the website solver and the current puzzle. I'd like to do more and add some kind of Facebook connectivity.


Your Name/Handle

Email Address - required for confirmation (it will not be displayed here)

Your comment or question

Please enter the
letters you see:
Enter these letters Remember me

Please keep your comments relevant to this article.
Email addresses are never displayed, but they are required to confirm your comments. When you enter your name and email address, you'll be sent a link to confirm your comment. Line breaks and paragraphs are automatically converted - no need to use <p> or <br> tags.
Talk Subject Comments
Comments here pertain to corrections to the text, not the subject itself
Article created on 15-December-2012. Views: 112308
This page was last modified on 30-March-2020.
All text is copyright and for personal use only but may be reproduced with the permission of the author.
Copyright Andrew Stuart @ Syndicated Puzzles, Privacy, 2007-2023