Free Printable Easy Killer Sudoku
A freshly generated easy killer sudoku puzzle — small cages, friendly sums, ready to print.
Killer SudokuFree printable easy killer sudoku puzzles, freshly generated and ready in seconds. Killer sudoku uses the same 9×9 grid as classic — row, column, and 3×3 box rules all apply — but the puzzle ships completely empty. Instead of given digits, you get cages: dashed-border regions with a small target sum in the corner of an anchor cell. Digits inside a cage must be unique and sum to the cage's target.
Easy killer keeps cages small. Many one-cell cages act as given digits in disguise — the sum tells you the digit. Two-cell cages with edge sums (3 = 1+2; 17 = 8+9) pin down pairs immediately. From there, classic scanning takes over: naked singles, hidden singles, and locked candidates fill most of the grid. This is the right tier if you're new to killer — the cage-sum intuition builds quickly without needing the 45 rule or innies/outies yet.
Print one full-page sheet, sharpen a pencil, and you have a fifteen-to-twenty-minute introduction to the variant. Free, no account, no watermark, freshly generated every time you load the page.
Frequently asked questions
Quick answers about printing sudoku from Sudoku247Online.
- What is killer sudoku and how does it differ from classic?
- Killer sudoku uses the same 9×9 grid as classic, but the puzzle ships empty. Cells are grouped into outlined regions called cages, and each cage carries a target sum. Standard row/column/box rules still apply, plus digits inside a cage must be unique and add up to the cage's sum.
- Why is the printed grid completely empty?
- Killer puzzles have no starting digits — the cages and sums are the puzzle. Everything you need to solve is right there: the cage outlines and the small sum number in the corner of each cage's anchor cell.
- What do the small numbers in the cells mean?
- Each small number in the top-left corner of a cell is the sum target for the cage that cell anchors. Cage boundaries are drawn as dashed lines. Every cell belongs to exactly one cage.
- How long does a killer sudoku take to solve?
- Easy killer takes 15–25 minutes, medium 25–40, hard 40–70, expert often over an hour. Cage-sum combinations open up most of the early moves; classic sudoku scanning closes them.
- What techniques are essential for killer sudoku?
- Cage-sum arithmetic is the killer-specific layer: the '45 rule' (every row/column/box sums to 45), cage combinations (e.g. a 3-cell cage summing to 6 must be 1-2-3), and innies/outies. Standard sudoku techniques (naked singles, hidden singles, pointing pairs) carry over for the placement step.
- Are the solutions printed with the puzzle?
- Not on the standalone killer printables yet — solving online at /killer-sudoku reveals the solution on completion. A 'Print with solutions' option for killer is on the roadmap.