You’ve never played Sudoku like this.
Good Sudoku turns your iOS device into an AI powered Sudoku genius whose only mission is to help you learn and love this classic game.
Whether you’ve never tried Sudoku, or you play every day, Good Sudoku’s elegant layout, intelligent hint system, and busywork reducing tweaks will help you play better and have more fun.
- Over 70,000 of the highest quality puzzles you’ll see anywhere
- Optional tools to reduce busywork
- AI powered hint support to continuously boost your skills
- 3 standard modes: Good, Arcade, and Eternal
- 3 Daily puzzle modes that get harder throughout the week + global leaderboards
- 5 levels of difficulty
- Import your own puzzles from elsewhere in Custom mode (and share them with friends!)
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We put everything we could into making the best digital Sudoku game ever released:
- We wrote a puzzle generator from scratch to create over 70,000 of the highest quality puzzles you’ll see anywhere. We spent weeks figuring out how to generate intricate and complex puzzles you won’t find in other Sudoku apps. Our hardest puzzles require wild techniques like “XYZ Wings”, “Hidden Quadrouples”, “Jellyfish”, and “Swordfish”.
- Most people don’t know this but Sudoku puzzles are actually generated by programatic Sudoku solvers. The fastest way to know how hard your puzzle is, or if it’s valid, is to write a solver that knows all the strategies that can try it. With Good Sudoku, we run our solver as you are playing, so if you get stuck, it can detect what you know by looking at your answers and your notes, and then help you find the next technique you need to solve the puzzle.
- Most Sudoku games classify difficulty into vague Easy, Medium, and Hard difficulties — But what do these difficulties mean? Typically they refer to the kinds of solving techniques that are required to solve a given puzzle without resorting to guess-and-check. In Good Sudoku we aren’t vague about it at all. We lay out exactly which techniques are required for each difficulty level. Good Sudoku allows you to practice them individually outside of puzzles, and keeps track of which ones you’ve learned!
- When we first got interested in Sudoku we noticed that a lot of players spend most of their time looking at the board and counting. On easy puzzles, this counting serves as a way to increase the difficulty by making the puzzle take longer. We know some sudoku players love the counting but we found it a bit tedious and designed some tools to alleviate the busywork. At first these tools might feel a bit like cheating, but once your mind is freed up from counting you’ll have space to see the much deeper more fascinating side of Sudoku: all of the beautiful technique structures. Freed from the burden of busywork Sudoku becomes one of the best search-style games we’ve ever played. More fun than word-searches and solitaire, high-level Sudoku is a real treat — and with Good Sudoku and a little practice, anyone can learn it!
- We noticed when looking at other Sudoku apps although there are often daily puzzle modes, those modes never include global leaderboards. Weird! Good Sudoku remedies this problem!
- We wanted to make the best Sudoku out there, and while we’re proud of our puzzles, we recognize that puzzles come from all places. That’s why we built a quick and easy custom puzzle mode into Good Sudoku, so if you have a paper puzzle that you’re stuck on, or you’re trying some wild variant (Like the Miracle Sudoku!) it’s easy to put it into the game, play it, and share it with your friends. If the puzzle follows standard Sudoku rules, our hint system will even help you get unstuck!
We truly hope Good Sudoku can introduce you to, or deepen your love for this great game.
-Zach and Jack
When doing the improvement exercises, and pressing “Hint”, some times the hint is “not solvable”. This happens without me changing the board in any way. Even though this of course mimics real sudoku where you don’t know if a strategy can be applied, it’s not ideal for motivation when learning a new one
Stuck in loading
Usually very happy customer
The last weeks the app is only showing «First sync may take longer, thank you for your patience!», even though I have played a lot of games before. I hope my history is not deleted??
Good sudoku
Kirkens mann
Best interface
So calming
Glittersusanne
I love this app. It’s super calming. Great for learning and practicing sudoku techniques.One bug: for curiosity I tried puzzle number 2681 (on pro board) something to see if they were more difficult and now every time I want to start a new puzzle i get put to the menu showing puzzle 2381-2385. No matter if I solve puzzles on levels 150 I still get put to 2381 when starting a new puzzle. Could you fix this?
Thanks so much for playing Good Sudoku! We've made some minor bugfixes and some backend updates to the daily tournament system.
Version 1.0.30
The developer, Zach Gage, 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 Linked to You
The following data may be collected but it is not linked to your identity:
Contact Info
Identifiers
Usage Data
Diagnostics
Privacy practices may vary based, for example, on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Provider
STFJ LLC
Size
198.3 MB
Category
Puzzle
Compatibility
Requires iOS 13.0 or later.
iPhone Requires iOS 13.0 or later.
iPad Requires iPadOS 13.0 or later.
iPod touch Requires iOS 13.0 or later.
Mac Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
