Killer Sudoku 6x6

Killer Sudoku 6x6

Quick puzzles, zero ads ever

5 ratings
5 reviews
Free
In-App Purchases

Details

Released
April 9, 2026
Updated
October 29, 2026

Features

Killer Sudoku 6x6 screenshot #1 for iPhone
Killer Sudoku 6x6 screenshot #2 for iPhone
Killer Sudoku 6x6 screenshot #3 for iPhone
Killer Sudoku 6x6 screenshot #4 for iPhone
Killer Sudoku 6x6 screenshot #5 for iPhone
Killer Sudoku 6x6 screenshot #6 for iPhone
Killer Sudoku 6x6 screenshot #7 for iPhone
Killer Sudoku 6x6 screenshot #8 for iPhone
Killer Sudoku 6x6 screenshot #9 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

Engage in addictive cage-sum puzzles on a compact 6x6 grid, perfect for quick play sessions. Offers multiple difficulty levels, helpful tools, and customization options. Enjoy offline play with no ads or data collection.

✓6x6 grid for quick play
✓5 difficulty levels plus random
✓Built-in beginner guide
✓Pen & Pencil modes with smart candidates
✓Integrated calculator
✓Offline play
✓Customizable themes and haptic feedback
Show original description

What's New in Killer Sudoku 6x6

1.1.6

October 29, 2026

Optimized for iPhone Duo: open it and hold it sideways, and the puzzle sits on one side of the fold with every control on the other, so nothing gets cut off, even with the calculator open. The puzzle also resizes to fit in Split View.

More
1

Subscriptions & In-App Purchases

$2.99

Unlock Unlimited Play

Enjoy unlimited puzzles at all difficulty levels!

User reviews

Sudoku newbie

As someone who has never played sudoku, I found this game to be fun, exciting and a great way to learn the game! It looks like it will keep me engaged as my skills grow. I can’t wait to see what comes next!

Great game

Sudoku if it was awesome

Sudoku done right!

I don’t usually write reviews, but this app forced my hand — in a good way. Imagine if Howard Garns, coffee, productivity, and pure genius had a digital baby — that’s this app. It’s a no-nonsense gem that strips Sudoku down to its addictive core — simple 6x6 grids with clever cage sums, no bloat. Just pure logic puzzles that hook you fast.

The interface? Smoother than a dolphin wearing sunglasses. The features? So intuitive my dog could play (and she’s terrible with technology).

If you want an app that actually does what it says, looks great while doing it, and maybe even raises your IQ a few points grab this one!
Show more

Really cool game!

I had fun playing this even though I was new to playing. It was so easy to understand. 😆

Killer sudoku

A great game. Good instructions. I love the pencil marks. The circles help the numbers stand out a bit. You can even select the color of the board! I'd give 6 out of 5 stars if I could.

FAQ

What is Killer Sudoku 6x6?

Killer Sudoku 6x6 is a puzzle game where you fill a 6x6 grid with numbers 1-6 so that each row, column, and 2x3 box contains unique digits. Additionally, cells are grouped into cages with target sums that the numbers within must add up to.

How many difficulty levels does Killer Sudoku 6x6 have?

Killer Sudoku 6x6 offers five distinct difficulty levels: Beginner, Easy, Medium, Hard, and Expert. It also includes a 'Random' option to generate puzzles.

Can I play Killer Sudoku 6x6 offline?

Yes, Killer Sudoku 6x6 is designed for offline play. All game functions run on your device, requiring no internet connection and ensuring no data is collected.

Does Killer Sudoku 6x6 have ads?

No, Killer Sudoku 6x6 is ad-free. The developer explicitly states 'zero ads ever' and that the game contains no advertisements.

How much does Killer Sudoku 6x6 cost?

Killer Sudoku 6x6 is free to download and play, offering three free puzzles at each difficulty level. Unlimited play can be unlocked with a single, one-time purchase, with no subscriptions required.

What tools are available in Killer Sudoku 6x6?

The app provides powerful tools including Pen & Pencil modes with candidate marks, a smart pencil feature, a built-in calculator with cage-tap integration, cage combination references, and full undo/redo history.

What devices is Killer Sudoku 6x6 available on?

Killer Sudoku 6x6 is available on iPhones and iPads, supporting hardware keyboard input on iPad with a full shortcut overlay.

How often is Killer Sudoku 6x6 updated?

The latest version of Killer Sudoku 6x6 is 1.1.6, which was last updated on October 29, 2026. This indicates a recent update, suggesting ongoing support and development.