Killer Sudoku by Sudoku.com

Killer Sudoku is a fantastic number puzzle game brought to you by Sudoku.com, the developer of the world's most downloaded classic Sudoku puzzle. This free app guarantees an exciting experience, extra game quality, and endless fun. Whether you're a fan of classic Sudoku or looking for a challenging math puzzle, Killer Sudoku is perfect for you.

What is Killer Sudoku?

Killer Sudoku is a blend of Sudoku and Kakuro, where your goal is to fill the grid with numbers while ensuring that the sum of numbers in specified cages equals the number in the upper left corner of the cage. It's a legend among number games and puzzles, known by various names like Sumdoku and Addoku.

How to Play Killer Sudoku?

• Fill all rows, columns, and 3x3 blocks with numbers 1-9 like in classic Sudoku.


• Pay attention to the cages and ensure the sum of numbers equals the number in the upper left corner.


• The sum of all numbers in each 3x3 block, row, or column always equals 45.


• Avoid repeating numbers within cages, rows, columns, or regions.

Killer Sudoku Features

• Complete free daily challenges and compete for awards.


• Participate in seasonal events and win unique medals.


• Use Auto-Check to identify mistakes and improve logic skills.


• Add notes when unsure about number placement.


• Enjoy classic paper-and-pen puzzle game experience.


• Access statistics to track progress and achievements.


• Use unlimited undo and eraser features.

More Killer Sudoku Features

• Choose from various color themes for a customized experience.


• Auto-save feature saves your progress for later continuation.

Install Killer Sudoku for free on your phone or tablet, train your brain, and have a great time solving challenging puzzles!

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