Kakuro number combinations - 10

2 Blocks

1 & 9
2 & 8
3 & 7
4 & 6

3 Blocks

1 & 2 & 7
1 & 3 & 6
1 & 4 & 5
2 & 3 & 5

4 Blocks

1 & 2 & 3 & 4