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...	00:11.38
2.	coolcoolguy65	01:57.41
3.	vowels	02:05.78
4.	suuperch	02:26.43
5.	Icay	02:27.44
6.	hoodxxc	02:28.70
7.	anonymous	02:38.80
8.	anonymous	02:40.06
9.	kdu	02:42.06
10.	Yuyinraoliang	02:43.40

AO5
1.	Vanessa Thaisa Anton...	00:11.96
2.	coolcoolguy65	01:59.25
3.	vowels	02:09.52
4.	suuperch	02:24.65
5.	Icay	02:33.52
6.	kdu	02:40.45
7.	hoodxxc	02:41.41
8.	anonymous	02:44.83
9.	FAlin	02:54.03
10.	Namae	02:55.52

AO12
1.	vowels	02:26.15
2.	suuperch	02:44.45
3.	kdu	02:54.90
4.	hoodxxc	03:04.81
5.	mp3some	03:12.28
6.	anonymous	03:13.88
7.	Yuyinraoliang	03:17.82
8.	Icay	03:20.59
9.	dxjonas	03:28.44
10.	qqwref	03:29.11

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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2025-12-20 07:15:35

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