Rules

1. Like-numbers must form a line:

3
3
3
4
4
44

No other shape will work:

4
444
44
44

2. The length of the line must match its number:

2
2
2
2
2

3. Two lines with the same number must not touch, even at a corner:

2
2
22

4. If there is a circle around a group of numbers, then their sum must be the value shown:

3
6
2
32
3
4
6
2
42
44

There is a solution to every puzzle.

4
5
masterlined