Shikaku
Divide the grid into rectangles, each holding exactly one number equal to its area.
36
36
14
36
36
36
35
4
33
2
2
6
2
6
17
6
30
4
14
16
2
9
4
3
2
2
2
5
6
3
2
2
4
2
2
3
4
2
3
3
5
7
2
2
2
2
2
1
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
Easy
5×5
Medium
9×9
Hard
15×15
Expert
22×22
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