Sudoku

Contains ads
4.6
195K reviews
5M+
Downloads
Content rating
Everyone
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About this game

★ Top Developer (awarded 2011, 2012, 2013 and 2015)★
Sharing the same top quality gameplay, graphics and interface as the rest of our app library, AI Factory's Sudoku is an essential download for any Sudoku or brain training fan! You never need a paper puzzle again!

- 2500 Sudoku puzzles over 5 difficulty levels, covering easy through to medium, hard, and extreme levels

- Various different modes for notes input to cater for all playing styles

-Pre-fill notes option

-Auto-clear notes option

- Optional hints, undo and board aids

- 4 fonts/sets of symbols & 3 boards

- Statistics tracking, including fastest times, average times and completion % for each level

- Super smooth interface and graphics

- Suitable for both Phones and Tablets

This free version is supported by 3rd party ads. Ads may use internet connectivity, and therefore subsequent data charges may apply.
Updated on
Nov 7, 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 info and performance and Device or other IDs
This app may collect these data types
App info and performance and Device or other IDs
Data is encrypted in transit
You can request that data be deleted
4.6
195K reviews
Snorri Gudmundsson
August 19, 2022
Finishing a game starts an ad from its maker for some of its other games. The problem is (1) it is about 30-sec long and (2) no cancel button shows up and eventually forces you to the Play Store. This drives me nuts because I don't want other games (come on guys, take a hint). Yes, it is fair an ad of some sort shows up, but allow me to skip after 5-sec, for crying out loud. Game is good but not worth this. It is antithetical to AI altogether. I am deleting it and moving to other companies.
9 people found this review helpful
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AI Factory Limited
August 19, 2022
We're sorry for your ad experience. These are ads for games by other developers and ad networks control how and when they can be skipped. Popup ad is designed to be skippable after 5 seconds with fast forward or "x". If fast forward disappears, tap ad where it was. Please report any problem cases to support@aifactory.co.uk. Paid version has no ads.
Karen Duke
May 28, 2021
I like that all like numbers light up when you place a number. I also appreciate being able to change the appearance of the board. Two big cons kind of ruin the game for me, though. For one, instructions for play are terrible. I had a hard time just figuring out how to play. Also, it would help a lot if--when you place a number--all like numbers in notes in adjoining rows & columns would disappear. You waste too much time removing them manually.
28 people found this review helpful
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AI Factory Limited
May 28, 2021
Thank you for your suggestions. We have added these for consideration on our to-do list.
A Google user
February 18, 2019
This game is not too complicated to play but does take a great deal of concentration and attention to detail. The option to make notes in the squares helps to make a very challenging game doable! I'm midway through level four and haven't encountered any mistakes in the game that would make the level unsolvable but I have made mistakes I've had to backtrack to fix.
37 people found this review helpful
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What's new

Significantly improved hint system