Killer Sudoku ‪+‬ 4+

James Gibbs

Designed for iPad

    • 4.8 • 256 Ratings
    • Free
    • Offers In-App Purchases



Killer Sudoku is a fun and challenging variant of Sudoku. If you love Sudoku, why not give Killer Sudoku a try?

As with Sudoku, the objective of Killer Sudoku is to fill the grid with the numbers 1 to 9 such that each row, column and nonet (3x3 group of cells) contains each number only once. In addition, a Killer Sudoku grid is divided into cages, shown with dashed lines. The top-left corner of each cage shows the sum of the numbers within it. The same number cannot appear more than once in a cage.

There are ten puzzles included for free, and thousands available for download. The puzzles are graded into difficulty levels, all excellent quality and with a unique solution.

The app and puzzles are from the maker of

What’s New

Version 1.5.3

Fixes a bug that can prevent puzzles from being downloaded.

Ratings and Reviews

4.8 out of 5
256 Ratings

256 Ratings

Why does this nickname have to be unique, anyway? ,

Very well designed

I’m sort of addicted to this app. Killer Sudoku is a pretty complicated game, requiring the player to keep track of many possibilities. This app provides a lot of useful aids. For each cage, the app provides all the sets of numbers that are possible for it, and you can uncheck sets as you eliminate them as possibilities as you go along. You can, of course, enter “possible numbers” as notes in each square, or across a selection of squares. You can select more than one cage and the app will automatically tell you the sum of all its squares. There’s also a “calculator” that allows you to enter an arbitrary cage size, and it tells you all the possible combinations. There aren’t very many killer sudoku apps on the App Store (I know of two for certain), but this is easily the best one. It offers many sets of puzzles as in-app purchases, in a wide range of difficulties; since the harder puzzles have lots of replay value (unless you have perfect memory, I suppose), then a few of these purchases will last you a long time.

Kooki3monst4r ,

Simple, but perfect

It’s everything I could ask for to play Sudoku. No ads, nothing done in the background so you can play offline, and a huge variety of games for just a couple bucks. Absolutely love it.

Squeat ,

my favorite killer sudoku but would like some features

I have tried several killer sudoku app and like this one the best generally. But I wish it would have some features such as game statistics (average completion times, number of hints used, number of error checks, etc). I’d also like to be able to sort games by completion time so that I could try to beat my old times on harder games.

App Privacy

The developer, James Gibbs, 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 Not Collected

The developer does not collect any data from this app.

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

You Might Also Like