Last updated on December 16th, 2025 at 02:06 am
Killer Sudoku – number game – Board Game Review
Killer Sudoku – number game is a Board/Puzzle/Entertainment game from 俊杰 龚, first launched in 22nd July 2021.
It’s rated 4+ and currently has 142+ ratings on the App Store.
What Makes Killer Sudoku – number game Stand Out
Killer sudoku (also named sumdoku, addoku, cross-sum or samunamupure) is a logical puzzle game that combines elements of sudoku and kakuro. So its rules are like the classic sudoku very much. Your goal is to fill the grid with numbers like in classic sudoku and also make sure the sum of numbers in cages (areas separated by dotted lines) is equal to the number in the upper left corner of that cage.
If you are interested in playing number games or math puzzle games, this Killer Sudoku is exactly for you! Killer Sudoku may be a little bit harder than a classic sudoku puzzle game. But we offer 9 balanced difficulty levels for beginners and advanced players. Even you didn't play Killer Sudoku before, you'll become a Killer Sudoku master in no time.
How to play it?
The objective is to fill the grid with numbers from 1 to 9 in a way that the following conditions are met.
- Each row, column and block contain each number exactly once.
- The sum of all numbers in a cage must match the small number printed in its corner.
- No number appears more than once in a cage.
Main Features:
- Include more than 80,000 puzzles, and all are tested by program.
- Contain several game modes: Daily Challenge, Game Levels, Trophies Collection.
- The game offers 9 difficulty levels that are suitable for both beginners and masters.
- Use free hints when you are stuck.
- Use auto-check to see the mistakes in real-time.
- Take part in the ranking, and compete with other players.
- Long press and lock a number, use for multiple cells, you can enable it in settings.
More Features:
- Color themes, select your favorite color.
- Unlimited Undo.
- Auto-save game and continue it next time.
- Auto-notes for all the cells.
- Statistics, record all your progress.
- Timer, you can disable it in settings.
- Support phone and tablets.
Thanks for your selecting our Killer Sudoku game, please install it free, train your brain, and enjoy your happy time!
This Board game offers engaging gameplay and regular updates for mobile players.
Player Feedback
As a newer release, Killer Sudoku – number game is building its player community. Early feedback suggests .
Recent Updates & Development
Latest Update: 14th March 2025
Recent improvements include:
- Performance and stability improvements
Download & Availability
Killer Sudoku – number game is available through the official App Store for iOS devices.
Get Killer Sudoku – number game on App Store
Requirements: Requires iPhone 5s / iPad Air / iPad Air (Cellular) / iPad Mini 2 (Retina) / iPad Mini 2 (Retina, Cellular) / iPhone 6 / iPhone 6 Plus / iPad Air 2 / iPad Air 2 (Cellular) / iPad Mini 3 or later.
Compatible with iPhone and iPad devices.
Player Experience Highlights
Community Insight:
Stumbled across killer sudoku after years of sudoku. The additional logic involved is a great dynamic. The developers offer this package ad free. Kudos.
Have played this game since a couple years ago. Its very good but the ads increased recently kinda disappointed.
This is the premium of several KS games offered. Its simple, practical and lets advertisers off easy.
This game at the higher levels with definitely give you a challenge.
Great game to keep the mind sharp.
We have tried several sudoku apps. So far it is absolute best. We would change something though – the borders between sums arent as clear as we would like, we often make mistakes because of that, no matter which background color we choose.
Good choice of challenging games.
Ive been looking for a good complete Killer Sudoku for some time, went through half a dozen apps a d this one stuck. It has everything we need except for one feature, ability to add multiple hints (say, 1234), in one finger cross stroke, rather than tap them one by one.
We love that we have multiple choices of levels, from the simplest to the most challenging.
Has all of the easy buttons without giving away the puzzle.
Loving this version of sudoku! Fun and challenging.
Just a game or two daily, a good day ahead.
This a good version but not as good as the android version which is much better.
We like the notes and the calculator features. But the jump from medium to hard is too much.
Should have only one solution. This forces errors for for invalid Sodukos.
We used to think that the evil of Sudoku.com was fun. Now it seems boring compared to killer sudoku. We are addicted and Im only up to the hard level so far. We cant wait to progress.
Has multiple levels so that one can play at a level appropriate to ones ability.
We downloaded & played many Killer Sudoku Apps & by far this is best one. Very well designed.
Please fix. The dashed lines that outline the sum youre attempting to fill ARE TOO LIGHT. Please make them bolder. Ive played about 250 of these puzzles and its VERY frustrating. Update and fix.
Enjoy playing the game. Mentally challenging.
And Thank you for not crashing our iPad.
Great interface and levels to test skills.
Love working these. Wish it would alert when an incorrect number is placed.
Love that we can play games without being interrupted without ads. We do wish there was a level between medium and hard. Medium is too easy and hard starts out with zero prefilled numbers. We would also like to be able to play horizontally. Aside from those issues, Overall our favorite sudoku app so far.
User feedback from Apple App Store
App Details
- Version: 1.3.7
- Size: 30.80 MB
- iOS: 13.0 or later
- Languages: CS, DA, NL, EN, FI, FR, DE, IT, JA, KO, NB, PL, PT, RU, ZH, ES, SV, ZH, TR
- Content Advisory:
- Developer: 俊杰 龚
Last updated: 14th March 2025 | Genre: Board, Puzzle | Developer: 俊杰 龚