Block 4:
1-2-3-4-8-12-16-15-14-13-9-5-1;
3-7-11-15;
2-6-10-14;
5-6-7-8;
9-10-11-12;

When you click two touching squares, the divider between them will be removed or added;

Block 5:
1-6-11-16;
4-4-1-16;
4-4-1-16;
3-8;
9-14;
4-4-5-5-12-12;
4-4-1-16;

Squares 1-6-11-16 remove dividers when all dividers are present; Squares 4-13 rotate the dividers around the outer section; Squares 7-10 rotate the dividers around the inner section; Squares between the corners rotate dividers around its sides;

Block 6:
10-10-10-10-11-11-11-11-7-7-7-7-6-6-6-6;
3-4-2-2-1-5-9-9-13;
8-8-12-12-16-15;
11-11-11-7-7-7;
3-4-8-8-12-12;
11-11-11-7-7-7;
3-4-3-8-8-4-3-7-7;
2-1-5-9;
6-6-6-6-6-3-7-8-4-3;
2-1-5-5;
3-7-8-4-3;
6-6-6-6-6-6-2-1;
3-7-8-4-3;
2-3-7-8-4-3;
2-3-7-8-4-3;
10-10-11-7-6-6-6-2-3-7-8-4-3;

Migrate all dividers to square 3. To remove them, there must not be any dividers on the bottom of square 3. To remove that bottom divider, click on square 7 multiple times; The middle squares rotate dividers – as well as removing or adding during rotation – press one of these squares multiple times to reduce the dividers down to one divider; All other squares help shift their dividers toward square 3 – though may add dividers in certain conditions.