Killer Sudoku (killersudoku.com)
A numbered daily killer sudoku: classic sudoku rules plus dashed cages that must add up to their sums.
Every day: One numbered killer sudoku a day (number 69 on 3 October 2026), the same grid for everyone, with past dailies kept in an archive. New puzzle: Once a day.
killersudoku.com publishes one numbered killer sudoku every day, with an archive of earlier dailies. On top of the usual sudoku rules, the grid is split into dashed cages, each showing the sum its digits must reach.
About Killer Sudoku (killersudoku.com)
killersudoku.com is part of the Hey, Good Game family of daily puzzle sites, alongside Hitori Conquest, Squeezy, Mini Sudoku and others. It offers a numbered Daily Puzzle that is the same for every player, and an archive that lists each daily by number and date (number 69 fell on Saturday 3 October 2026).
Killer sudoku keeps the classic rules: each row, column and 3x3 box must contain the digits 1 to 9 once. Instead of given digits, the grid is covered with cages drawn as dashed outlines, each with a small total in its corner. The digits in a cage must add up to that total, and no digit may repeat within a cage.
That turns the puzzle into a mix of logic and arithmetic: you work out which combinations of digits can make each cage's sum, then combine that with the row, column and box rules. Besides the daily there is an unlimited mode for extra grids, and a free account saves your streak and stats across devices.
It suits sudoku players who want a deeper daily challenge with a bit of mental arithmetic.
How to play Killer Sudoku (killersudoku.com)
- Open killersudoku.com and start today's Daily Puzzle.
- Look at the dashed cages and the sum shown in each.
- Fill digits 1 to 9 so every row, column and 3x3 box has each digit once.
- Make each cage's digits add up to its sum, with no repeated digit inside a cage.
- Complete the grid; earlier dailies stay in the archive.
Tips
- Learn the fixed combinations: a two-cell cage of 3 must be 1 and 2, and one of 17 must be 8 and 9.
- Each row, column and box adds up to 45, so totals of cages inside a region can reveal a missing digit.
- Use pencil marks for the possible digits of each cage before committing.
Questions
Is there a new killer sudoku every day?
Yes, one numbered Daily Puzzle each day, the same for everyone.
Can I play past dailies?
Yes, from the archive, which lists them by number and date.
What is a cage?
A dashed group of cells with a sum; its digits must add up to that sum without repeating.
Do I need an account?
No. A free account adds saved streaks and stats.
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