Killer Calculator
Killer Sudoku Combination Calculator
All fields are optional. If you leave all the fields empty, the output will list all combinations of all sums for all numbers of cells from 2 to 9.
The Sum and Number of cells fields are self explanatory.
The other fields will filter the combinations :
Having : to display combinations having all the digits
At least one of : to display combinations having at least one of the digits
Without : to display combinations not having any of the digits
At most one of : to display combinations having none or at most one of the digits
The output will list all combinations grouped by number of cells then by sum. For each row :
The Combinations column will list all possible combinations according to the criteria.
The Always column will list mandatory digits, those that are present in all filtered combinations.
The Pairs column will list all pairs of digits that would exclude
all filtered combinations. In some cases, both digits in a pair may be
present in some combination. The idea is to help spotting killer naked pairs or exclude some pair in another cage.
The Never column will list prohibited digits, those that are never present in any filtered combinations.