Enjoy the excellent Killer Sudoku puzzle game for both beginners and advanced Sudoku lovers! Download and start the daily challenge now!

Thousands of killer sudoku puzzles here for you to solve. Come to play this new killer sudoku game, and train your brain. Have fun!

[New] Dark Theme is available now! Perfect for you to play Killer Sudoku before bed.
[New] Color Theme. Playing games could be colorful!
[New] Casual Mode. 4*4 and 6*6 boards bring you more fun!

Killer Sudoku is a logical puzzle number game & brain game. To complete a puzzle, like the classic sudoku game, you can fill the grid with numbers; unlike the classic sudoku puzzle, you have to make sure that the sum of numbers in each cage (areas surrounded by the dotted lines) is equal to the number in the upper left corner of the cage.

If you are interested in playing number games or math puzzle games, this Killer Sudoku is exactly for you! If you'd ever played number games, such as Sumdoku, Addoku or Cross sum, come to try this one, too! It is an amazing combination of a sudoku puzzle, a KenKen and a Kakuro puzzle game.

Killer Sudoku may be a little bit harder than a classic sudoku puzzle game, no worries! We offer several balanced difficulty levels for beginners and advanced players! The game has the function to add or remove notes during gameplay. Did you make a mistake at the beginning? No worries, there are undo and hint functions! Get it back fast!

How to play:

1. Place numbers 1-9 into each grid cell exactly like in a classic Sudoku puzzle;
2. Different cages - groups of grid cells indicated by dotted lines;
3. The sum of all numbers in each cage should be equal to the number in the upper left corner;
4. The sum of all numbers of each 3x3 block, row, or column always equals 45;
5. Each cage, row, column, or 3x3 block cannot have the repeated numbers.


- Turn on the note mode to take notes like solving puzzles on a piece of paper. The memo is automatically updated while you fill in the cell.
- Find your mistakes and challenge yourself or use auto-check to see your mistakes in real-time.
- Complete daily challenges and earn special trophies!
- Use free hints when you are stuck.
- Thousands of killer sudoku puzzle games

More functions and highlights:

- Statistics. Track your killer sudoku progress.
- Unlimited Undo. One tap to remove the mistake.
- Autosave. If you leave Sudoku incomplete, it will be saved. Keep playing anytime.
- Eraser. Eliminate all of the mistakes if you made any.
- Sharing functions. You can share this sudoku game with your friends via Facebook, Twitter, etc.
- Four perfectly balanced difficulty levels: Easy, Medium, Hard, and Expert.

Train your brain anytime and anywhere and keep your mind sharp in this Killer Sudoku puzzle game. With its easy control, intuitive interface, and perfect selection of different levels, this killer sudoku app will help you to enhance your logical ability and learn more Sudoku skills. Come and try it out! Challenge yourself how quickly you can solve problems and improve your memory!

We always carefully check all reviews. Please feel free to leave your ideas, feedback, suggestions, or any questions about Killer Sudoku for further improvements! We are always here for you. Thank you and have fun with Killer Sudoku, Sudoku Puzzle!

Privacy policy:
Terms of use:

What’s New

Version 1.16.1

Dear Killer Sudoku players,
This update includes bug fixes and UI optimization.
Share the game with your friends, thank you for choosing Killer Sudoku.

Ratings and Reviews

5.0 out of 5
2.7K Ratings

2.7K Ratings

sarahyy121 ,

Love this killer sudoku game

I am playing the sudoku game from guru smart, and today I noticed they released a new killer sudoku app, out of curiosity, I tried this new one, nice! The same simple UI and fluent gaming experience. I also love playing this one, challenging!

Developer Response ,

Hi, we really appreciate your kind words. Your support means so much to us, and we always welcome any future feedback or comments you may have. :-) - Tyler

Yehayahe ,


I like this game, but when I updated the version, my history from the old version didn’t come with it. Old version interrupted you at least twice mid-game with adds. In a concentration/calculation game like this, that’s so annoying. Leave adds between games! Be able to carry history of your games between versions would be definite improvements!

Aaaaaaaaaaaaaaghjuvgft ,

Glitches in tournaments =constant redos

Really liked this game but if you start a tournament game and want to finish it later, it takes the board out of the tournament and counts it as a regular game. Several times I completed an expert level board to then have to re do the same board to get it to count. I end up having to take screenshots every time I leave in case it wipes it. I’m switching to another sudoku app

Developer Response ,

Hello, so sorry for this inconvenience. We are working on resolving this issue, and hopefully you'd like to give us another try and stay tuned. If anything else, please reach us at Thank you very much for your support and patience! :-) - Sarah

App Privacy

The developer, Guru Smart Holding Limited, 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 Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Purchases
  • Identifiers

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Purchases
  • Identifiers
  • Usage Data
  • Diagnostics
  • Other Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You Might Also Like