Killer Sudoku

What is Killer Sudoku?
Killer Sudoku is a wonderful twist on the classic sudoku for those of you seeking something new and challenging. It’s also known by such names as sumdoku, addoku and cross-sum puzzle but in a nutshell it’s pretty much the same number puzzle. Take your favorite number game with you wherever you go. Install Killer Sudoku puzzles Now!

Killer Sudoku is great for both beginners and advanced players. Although Killer Sudoku is harder than classic sudoku, we made it accessible for players of all skill levels. With its enhanced gameplay, it's easy to follow the game rules and become a sudoku master in no time.

Download this classic number game and play free sudoku puzzles. Killer Sudoku free puzzle is available offline. 

📙 About Sudoku:
The Japanese puzzle game Sudoku is based on the logical placement of numbers. A game of logic, Sudoku doesn’t require any calculation nor special math skills; all that is needed are brains and concentration.

🏆 Daily Sudoku challenges
Challenge yourself with daily Sudoku! Pick a date on the calendar and enjoy fresh sudoku puzzles every day! Come back to our puzzle kingdom of Sudoku every day and complete Sudoku game of the day.

🔢 Killer Sudoku features:

    ✓ More than 12000 well-formed classic killer sudoku games with numbers
    ✓ 5 levels of difficulty: Fast Sudoku, Easy Sudoku, Medium Sudoku, Hard Sudoku, Expert Sudoku
    ✓ Complete free Killer Sudoku Daily Challenges to complete for awards
    ✓ No wifi need, play in anytime anywhere
    ✓ Color themes. Choose one of four appearances to design your own Killer Sudoku kingdom! Play these fun free number games with more comfort, even in the dark!
    ✓ Easy and attractive gameplay that improves your puzzle game experience

📝 More Killer Sudoku game features:

    • Statistics. Track your daily Killer Sudoku progress, best time, and other achievements.
    • Unlimited Undo.
    • Auto-save.
    • Turn on Highlight identical number.
    • Add notes✍ if you’re not sure which number to place. Enjoy the experience of the classic paper-and-pen puzzle games
    • Challenge your logic figuring out your mistakes, or enable Auto-Check to see your mistakes
    • Mistakes Limit. Turn on/off Mistakes Limit mode as you like.
    • Hints can guide you when you get stuck.
    • Eraser.
    • Number-First Input.

🎓 How to play Killer Sudoku puzzles:

    - Fill all rows, columns, and 3x3 blocks with numbers 1-9 exactly like in classic sudoku.
    - Pay attention to the cages – groups of cells indicated by dotted lines.
    - Make sure the sum of numbers in each cage is equal to the number in the upper left corner of the cage.    
    - Numbers cannot repeat within cages, a single row, column, or 3x3 region

🔥 Why you should play Killer Sudoku?
Solving Killer Sudoku has a lot of benefits. Daily Killer Sudoku sessions are said to help you train your brain, improve memory, concentration and logical thinking. Whether you’re waiting for plane boarding, stuck in a queue or just want to unplug from reality for a few minutes, free Killer Sudoku should be your best puzzle of choice.

Killer Sudoku number puzzle is a fun and relaxing game that can help you keep your brain active and pass the time. Challenge your brain with the killer sudoku anywhere, anytime!