Killer Sudoku Helper Tool
Killer sudoku is a puzzle that combines sudoku and kakuro.
Unlike regular sudoko, these puzzles introduce an element of arithmetic. For simple puzzles this can actually make solving easier, but a difficult killer sudoku may easily take many hours.
The standard sudoku rules apply, but in addition the sum of all numbers in a 'cage' must match the small number in the corner of the cage.
No number may appear more than once in a given cage
Our tool does not solve killer sudoku puzzles - rather it is intended to help you in your own solving, by identifying valid combinations as you go.
An example puzzle :
Use the Combinations page for the main tool, or the Specials page to find instances of cage size and target number for which there is only valid combination.
Check out our Links page to find killer sudoku puzzles to solve!
About the tool
This is a simple tool intended to assist with the solving of killer soduku puzzles
Enter the box (cage) size in the left input field and the number you are looking for in the target input field
All valid combinations will be automatically displayed in the results area
Click on the 'Specials' tab for a handy list of cases where there is only a single valid combination