∑ SumUp

SumUp is a simple tool that shows all possible combinations of numbers that add up to a given sum. It's useful for certain types of puzzles, like for example 🔗 this killer sudoku.

1 2 3 4 5 6 7 8 9 (sum: 45 )

  • 3 9
  • 4 8
  • 5 7
  • 1 2 9
  • 1 3 8
  • 1 4 7
  • 1 5 6
  • 2 3 7
  • 2 4 6
  • 3 4 5
  • 1 2 3 6
  • 1 2 4 5