Killer Sudoku by Sudoku.com

Killer Sudoku by Sudoku.com

Math crossword & number puzzle

217K ratings
2663 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • August 6, 2020
  • August 27, 2026

Features

Killer Sudoku by Sudoku.com video #1 for iPhone
Killer Sudoku by Sudoku.com screenshot #2 for iPhone
Killer Sudoku by Sudoku.com screenshot #3 for iPhone
Killer Sudoku by Sudoku.com screenshot #4 for iPhone
Killer Sudoku by Sudoku.com screenshot #5 for iPhone
Killer Sudoku by Sudoku.com screenshot #6 for iPhone
Killer Sudoku by Sudoku.com screenshot #7 for iPhone
Killer Sudoku by Sudoku.com screenshot #8 for iPhone
Killer Sudoku by Sudoku.com screenshot #9 for iPhone
iphone
ipad
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About

Engage in a challenging math crossword and number puzzle experience. Solve thousands of Killer Sudoku puzzles with enhanced gameplay, daily challenges, and seasonal events. Train your brain and become a sudoku master with helpful hints and notes.

โœ“Killer Sudoku puzzles
โœ“Thousands of levels
โœ“Daily challenges
โœ“Seasonal events
โœ“Hints and notes
โœ“Brain training gameplay
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What users say

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+1

What's New in Killer Sudoku by Sudoku.com

4.5.0

August 27, 2026

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

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3

In-App Purchases

$14.99

Killer Sudoku No Ads

Enjoy Killer Sudoku puzzles without ads

Charts

Top Free

๐Ÿ“ˆย 138+23

Board games

This game rose +23 positions in Board games chart.

Last updated on August 28, 2026.

User reviews

Game Good, Ads Terrible

I play the games from the hard selection, and I donโ€™t mind ads, but 5 times during on the game I was playing was interrupted by ads, very annoying as not only is it time consuming but also loses your train of thought. Do you seriously have to break the game with so many ads?

Need new puzzle

Iโ€™m playing everyday ( 5000 play in last 4 month ) but now in expert mode iโ€™m playing last puzzles. Nothing is new and no challenges.
Please add new puzzle and update it. Thankd you support team.

Too many ads!

I enjoy the game- and the twist on regular Sudoku. But 5-6 ads per game? Annoying. Ad to start, 2-3 ads during play, an ad to get to score at the end. Iโ€™m about to delete it.

ADS!!!

Update: I see theyโ€™ve been lying for years in review responses saying they were going to fix the ads issue and havenโ€™t done anything as far as I can tell. Too bad because this really is a terrific game.
Original: Love this game and have been playing it for a long time now. There used to be limited ads (one a game if Iโ€™m remembering correctly) but now itโ€™s completely out of hand. It ruins your focus trying to play. Gonna start looking for an alternative. Itโ€™s a shame.
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Hints are useless

When I click the hint button, it just makes my input turn black and doesnโ€™t add any additional number. Useless

Developer apps

User experience

๐Ÿž

Reported Bugs

5 issues

Incorrect puzzle solutions

Bug

Scoring and stats issues

Bug

Screen orientation problems

Bug

Game freezing and crashing

Bug

Unresponsive controls

Bug
โœจ

Requested Features

6 requests

Option to toggle number combinations

Feature

Ability to lock correct numbers

Feature

Improved hint system

Feature

Customizable font and color options

Feature

Progress sync between devices

Feature

Difficulty level adjustments

Feature

FAQ

What is Killer Sudoku?

Killer Sudoku is a math crossword and number puzzle that combines elements of classic Sudoku with additional cage sum rules. Players must fill rows, columns, and 3x3 regions with numbers, ensuring each cell is part of a cage whose numbers add up to a specified sum. Numbers cannot repeat within cages, rows, columns, or 3x3 regions.

How do I play Killer Sudoku?

Fill all rows, columns, and 3x3 regions with numbers 1-9, just like classic Sudoku. Additionally, each cell belongs to a cage indicated by dotted lines. The numbers within each cage must add up to the sum shown in the upper left corner of the cage. Numbers cannot repeat within cages, rows, columns, or 3x3 regions.

Is this app free to play?

The app is free to download and play, offering a vast number of puzzles and gameplay features. It also includes in-app purchases and advertisements, which can enhance the user experience or provide additional content.

What makes this Killer Sudoku app different?

This Killer Sudoku experience is designed for both beginners and advanced players with enhanced gameplay that makes rules easy to follow. It offers thousands of levels, daily challenges for unique trophies, and seasonal events for special medals, all from a developer known for Sudoku.com.

What if I get stuck on a puzzle?

The app provides helpful hints and notes to guide you when you encounter difficulties. These tools are designed to assist players of all skill levels in progressing through the puzzles and learning the game mechanics.