52
75
21
30
26
8
108
16
105
56
72
30
18
16
80
42
46
21
35
52
12
26
9
18
14
39
4
60
2
16
21
16
6
11
42
15
9
2
14
2
15
3
4
2
9
2
7
2
8
36
5
9
10
20
12
2
10
7
2
4
32
6
3
2
11
3
3
5
3
4
5
5
2
2
2
2
6
2
3
2
4
3
3
2
1
3
2
6
12
1
8
4
2
2
4
2
1
2
2
3
1
2
3
1
2
1
1
2
1

master · 40 x 40

How to play

Divide the grid into rectangles and squares. Every shape must contain exactly one number, and its area must match that number.

Desktop

Click and drag to draw. Right-click a rectangle to remove it.

Mobile

Tap the first and last cell to draw. Press and hold to remove.

Found a problem? Send me an email and include your device and browser.