Killer Sudoku by Sudoku.com

Contains adsIn-app purchases
4.6
178K reviews
10M+
Downloads
Content rating
Everyone
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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 app comes from the developer of the world’s most downloaded classic Sudoku puzzle – Sudoku.com. So a stellar experience, extra game quality, and endless fun are guaranteed.

Whether you’re a fan of classic Sudoku or just looking for a number game or math puzzle for a great time and mental workout, 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, 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 number games and puzzles. In a nutshell, it’s a perfect blend of those fave brain-twisters Sudoku and Kakuro. Absolutely free!

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 while making sure the sum of numbers in the 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.

How to play Killer Sudoku

✓ Fill all rows, columns, and 3x3 blocks with numbers 1-9 exactly like in classic Sudoku
✓ Pay attention to the cages – groups of cells indicated by dotted lines.
✓ Make sure the sum of numbers in each cage is equal to the number in the upper left corner of the cage.
✓ The basic rule of Killer Sudoku is that the sum of all numbers in 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 where you went wrong, 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 stuck on 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
- Color 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 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
Feb 29, 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

4.6
159K reviews
Tristan Bensley
February 12, 2024
Great take on the classic Sudoku puzzle. It may look intimidating, but once you learn the strategies, it's not that bad. I currently have a best time of 15:58 on Expert difficulty as of the time I'm writing this. However, if I have one gripe with it, the ads can appear during gameplay. I would change them to only appear before you start and after you finish a game, so that players can focus on the gameplay, as it does require a lot of critical thinking, even with the right strategies.
16 people found this review helpful
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Retina Rose
December 2, 2023
Awfully infested with ads, I need to get an ad blocker or play ONLY offline or something to have a decent experience. There's an ad when you open the app, when you start on a game, and 1-2 that interrupt you while you work on a puzzle. Not to mention the banner ad at the bottom. It doesn't cover any content, but it's blazingly bright when I'm trying to play at night to help me fall asleep.
10 people found this review helpful
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Easybrain
December 2, 2023
Hi Retina! We apologize for the inconvenience caused by the ads. We understand that they can be irritating, but they help us keep the game free for everyone. However, we are constantly working on improving the ad experience for our players. Also, you can disable all ads in Settings for a small one-time fee.
R.
December 14, 2023
It's not perfect, but if a mobile game can get me to play for over 100 hours it's either fantastic... or I have a problem. Or both! Pros: the game is pretty responsive and offers all the rule options I could think of. Also devs, thank you for the option to pay to go ad free. I never would have played if it wasn't there. Cons: I've had the issue another review mentioned where switching between marking mode and notes mode seems a bit buggy. The difficulty at Expert varies widely.
50 people found this review helpful
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Easybrain
December 29, 2023
Hi! Thank you for your fantastic review! We're thrilled you've been enjoying Killer Sudoku. Regarding the issue with switching between marking mode and notes mode, we are already working on fixing this bug. We appreciate your feedback and support. Happy solving! 💚

What's new

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