Rules:

• Divide the grid into spaces containing exactly eight cells.
• A number in a cell indicates how many walls surround that cell. Note that this also includes the border of the grid.
• Ignore red circles while solving the logic.

5	3	3	4
4	5	4	5
4	5	5	5
5	3	4	3

4	4	3	3
3	4	4	4
4	4	3	4
5	4	5	4

4	4	5	5
5	3	4	4
5	3	5	5
5	4	4	5

4	4	4	4
4	4	4	4
3	4	4	4
3	5	2	5

5	4	5	5
4	5	4	4
3	5	3	2
3	5	5	5