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
- 6 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
This game is great, it teaches you many techniques to help solve sudoku, and the “good sudoku” mode is excellent for visibility. It’s so good in fact that it makes it hard to go back to classic sudoku! My only complaint (not really much of a complaint) is that the note taking can be a little temperamental, and switches between the note taking tool and entering a live number without much notice, which has caused me to enter numbers I didn’t mean to on several occasions! It would also be nice to have access to a glossary/guidebook type thing in the in game menu (not just the main menu) with all the different techniques explained for reference!
Download! Btw it’s awesome!
EpicGirl759
First of all, well done Zach for creating this masterpiece that I know I will not stop playing. I have loved sudoku for a while now and when I saw this app I immediately downloaded it (an action I will never regret). This game is really fun and teaches you the basics and then how to master even the impossible levels. For those umming and ahhhing over downloading this, If I could speak to you properly I would be shouting ‘YES! YES! DOWNLOAD NOW!’ 😂 It is 100% the best and if you have a puzzlers mind (like me) then don’t hesitate. I’ve played lots of games and none compare to this one. This game has never given me any problems and is endless! Really love this game. Pls download 🥺 because you won’t regret it! Anyway, see ya!
Good effort but room for improvement
ksymeon
Generally a good game with a fresh look at how things are done. I'm always eager to check a new sudoku implementation. After playing a bit though I started coming across to some UI bugs that take away from the experience.From the harmless overlapping text on the menu (iPhone 8 Plus, Core menu) to the more important and slightly unreproducible ones around locking and unlocking the note taking (sometimes it works one way, sometimes another - and I'm not changing Prefs). What's also annoying is that there's Undo but not Redo (!!!), please add.Most of the UI bugs I found on an iPad pro and what worries me is that they seem to be not straightforward to reproduce. This needs a proper round of testing. I feel also that the game needs a UX review: to deselect a number from the smart numpad you have to click outside... Why not just toggle it? The note taking needs a clear state machine: enter a particular mode, exit it. Sometimes I feel I'm clicking around just to figure out which way the game engine works.Otherwise, the game deserves credit for the amount of work gone into the help text and guides. Well done!
Addictive, but
BlablA1916
I love this app! However I’m disappointed in the techniques section. When solving the techniques it tells me that’s not what it’s looking for. I’ll search and search and finally just the hint button thinking I just can find it. Turns out I had it all along. For some reason it says your not correct when you are! It’s frustrating because this game is addicting and you can spend hours playing and the point is to actually solve games quicker by making it easier to learn the techniques. But it doesn’t help when you can’t learn properly.
Added support for the new iPad Mini.
Version 1.0.23
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 Linked to You
The following data may be collected and linked to your identity:
Contact Info
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Identifiers
Usage Data
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
