Killer Sudoku by Sudoku.com

Contains adsIn-app purchases
4.2
194K reviews
10M+
Downloads
Content rating
PEGI 3
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About this game

Killer Sudoku will let you enjoy an exciting experience! Jump into the new Sudoku gameplay, solve tons of new challenging number puzzles, and train your brain! Install Killer Sudoku now for free!

This free Killer Sudoku number game comes from the developer of the world’s most downloaded classic Sudoku puzzle – Sudoku.com. Hence, be sure you’ll get a stellar experience, extra game quality, and a lot of joy with the Killer Sudoku puzzle.

Whether you’re a fan of the classic Sudoku puzzle or just looking for number games or math puzzles to have a great time and exercise your brain, free Killer Sudoku is here for you.

Although Killer Sudoku seems a bit harder than classic Sudoku, we made it accessible for players of all skill levels. This number puzzle game comes with several difficulty levels – easy, medium, hard, and expert Killer Sudoku. This way, the Killer Sudoku puzzles are great for both beginners and advanced Sudoku solvers. We have no doubt you’ll become a Killer Sudoku master in no time!

What is Killer Sudoku

Killer Sudoku is a true legend among all number games and puzzles. In a nutshell, it’s a perfect blend between a free sudoku puzzle game and a kakuro game.

This number puzzle goes by many names: Sumdoku, Addoku, Cross-sum, etc, but the rules are equally simple across the board. Your goal is to fill the grid with numbers like in classic Sudoku and also make sure that the sum of numbers in cages (areas separated by dotted lines) is equal to the number in the upper left corner of that cage. Still sounds complicated? Let’s review the Killer Sudoku rules in detail below.

How to play Killer Sudoku

✓ Fill all rows, columns, and 3x3 blocks with numbers 1-9 exactly like in classiс Sudoku
✓ Pay attention to the cages – groups of cells indicated by dotted lines.
✓ Make sure that the sum of numbers in each cage is equal to the number in the upper left corner of the cage.
✓ The specific rule of the Killer Sudoku puzzle is that the sum of all numbers of each 3x3 block, row, or column always equals 45.
✓ Numbers cannot repeat within cages, a single row, column, or 3x3 region.

Killer Sudoku features

✓ Complete free Killer Sudoku Daily Challenges to compete for awards
✓ Take part in Seasonal Killer Sudoku Events and win unique medals
✓ Challenge your logic figuring out your mistakes, or enable Auto-Check to see your mistakes
✓ Add notes if you’re not sure which number to place. Enjoy the experience of the classic paper-and-pen puzzle games.
✓ Use hints when you are stuck in a really hard number puzzle. Don’t bother if you’re an experienced Killer Sudoku solver.

More Killer Sudoku features

- Statistics. Track your daily Killer Sudoku progress, best time, and other achievements
- Unlimited Undo. Made a mistake? No worries, undo it in one tap
- Colour themes. Select classic Light, Dark, or Sepia themes to design your own Killer Sudoku kingdom!
- Auto-save. If you get distracted and quit your Killer Sudoku game unfinished, we’ll save it for you so you can continue anytime.
- Eraser. Erase any mistakes you made in a number puzzle.

Killer Sudoku number puzzle is now available on the vast majority of phones and tablets. Install Killer Sudoku for free, train your brain, and have fun along the way!

Terms of Use:
https://easybrain.com/terms

Privacy Policy:
https://easybrain.com/privacy
Updated on
Oct 7, 2024

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
Location, Financial info and 3 others
This app may collect these data types
Location, Financial info and 3 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.1
174K reviews
Ela Piskorski
November 8, 2024
I've been playing this version of Killer Sudoku for a long time. Previously, I always had scoring turned off in settings. It seems that is no longer possible. I have turned off animated scoring (which was INCREDIBLY distracting). Having the score continuously change on the top of the screen is still very distracting. Please return the ability to turn this feature off. I will be looking for a new killer sudoku app in which I am able to control this.
4 people found this review helpful
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Easybrain
November 8, 2024
Hi Ela! Thank you for sharing your experience. We understand how the scoring feature can be distracting. Our main guideline is our players' opinions. We constantly test various innovations, and only those features most in demand among our players become part of the game for everyone. We'll certainly keep your feedback in mind. 💚
Kazin Drake
November 25, 2024
This used to be a very nice sudoku puzzle game, but it's constantly been upping it's ad content. I've honestly never played a game more that wants me to do something else than what it's become in the last 6-7 months. Open the game? Ad. Put in 2-3 number solutions? Ad. Try to load a puzzle? Ad. I'm all for supporting a ftp game, but it's just getting ridiculous.
4 people found this review helpful
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Easybrain
November 25, 2024
Hi! We appreciate your feedback. We're glad you enjoyed the game, but we understand your concerns regarding ad frequency. While ads support free apps, we acknowledge that too many can affect the experience. Your input is valuable, and we're working to improve the balance between ads and gameplay.
Pamela Davy
September 28, 2024
I love the game but am annoyed by the ads that interrupt the actual games as these make you lose your train of thought. I can accept ads before and after the game. I see there is a possibility to remove ads in the settings but am guessing this is not for free. Other games apps do not interrupt the actual game with ads. The number of interruptions to each game is now at least three. I am really thinking to uninstall this now as it takes away from the enjoyment of playing.
3 people found this review helpful
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Easybrain
September 29, 2024
Hi Pamela! Thank you for sharing your experience. We understand how disruptive the in-game ads can be, especially when they affect your focus. Your suggestion to limit ads before and after the game is noted; we'll keep it in mind. We appreciate your time playing the game and hope future updates might improve your experience.

What’s new


We hope you enjoy playing Killer Sudoku. We read all your reviews carefully to make the game even better for you. Please leave your feedback on why you love this game and what you'd like to improve. Keep your mind active with Killer Sudoku!