Kakuro Combinations

Find all possible combinations for a sum

This page finds all possible sum combinations given the criteria. In Kakuro, sums must be built with the numbers between 1 to 9, whereby each number may only appear once. For example, the numbers of three fields which have to add up to 8 could be 1 + 2 + 5 or 1 + 3 + 4, in any order.
Example
Sum
Length
Exclusion list
What is the desired result?
How many numbers to make up the sum?
Exclude combinations that use any of the given numbers. Separate by comma (e.g. 3,4,7).