Shikaku

Shikaku (also known as Rectangles) is a logic puzzle with simple rules and challenging solutions.

The rules are simple. You have to divide the grid into rectangular and square pieces such that each piece contains exactly one number, and that number represents the area of the rectangle.

Click and drag to draw a rectangle. To remove lines use the right mouse button or hold the Ctrl or the Shift key.

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This Month
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This Week
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Today
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MO3
1.	Vanessa Thaisa Anton...	00:11.50
2.	vowels	03:03.86
3.	suuperch	03:49.69
4.	Yuyinraoliang	03:53.63
5.	hoodxxc	03:57.07
6.	Icay	04:04.23
7.	kdu	04:10.43
8.	coolcoolguy65	04:10.97
9.	qqwref	04:17.05
10.	XuanLan	04:34.75

AO5
1.	vowels	03:07.40
2.	suuperch	03:50.63
3.	Yuyinraoliang	04:01.62
4.	coolcoolguy65	04:10.97
5.	Icay	04:14.70
6.	qqwref	04:22.97
7.	hoodxxc	04:25.62
8.	kdu	04:34.39
9.	XuanLan	04:45.98
10.	tanginess	04:51.47

AO12
1.	vowels	03:17.23
2.	suuperch	04:03.60
3.	qqwref	04:56.39
4.	Icay	05:12.04
5.	hoodxxc	05:20.21
6.	Yuyinraoliang	05:26.73
7.	kdu	05:28.72
8.	Namae	05:34.78
9.	XuanLan	05:36.45
10.	haramey	05:41.22

Robots / programmatic solvers		info
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* MO3 - Mean of 3. The average of 3 consecutive times.
AO5 - Average of 5. The average of 5 consecutive times ignoring the highest and the lowest.
AO12 - Average of 12. The average of 12 consecutive times ignoring the highest and the lowest.
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2026-03-13 18:46:36

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