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.

Video Tutorial

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This Month
1.	coolcoolguy65	00:25.75
2.	Yuyinraoliang_1	00:39.42
3.	Kyra05	00:48.99
4.	ypw19	00:51.35
5.	Yuyinraoliang	00:59.93
6.	eatatjoes	01:12.68
7.	yiran	01:18.50
8.	qobi	01:18.55
9.	giotskh	01:19.06
10.	GeorgPfleger	01:20.87
11.	陆零九	01:30.19
12.	lazey	01:31.94
13.	siaalove	01:32.40
14.	Colleen2023	01:32.99
15.	风间呓语	01:41.01
16.	Goomy	01:48.80
17.	Dorice	01:55.03
18.	Nanghty#2175	01:58.75
19.	PheromoneJones	02:07.50
20.	beggle1	02:09.15

This Week
1.	coolcoolguy65	00:28.96
2.	eatatjoes	01:12.68
3.	yiran	01:18.50
4.	GeorgPfleger	01:20.87
5.	Colleen2023	01:53.80
6.	siaalove	01:55.92
7.	beggle1	02:09.15
8.	qobi	02:10.84
9.	Dorice	02:12.41
10.	Koen Dyck	02:20.46
11.	ScorpionMax	02:26.16
12.	Goomy	02:31.95
13.	jedhen	02:37.51
14.	angelina4fina	03:39.48
15.	wusister	04:36.91
16.	--- empty ---	--:--
17.	--- empty ---	--:--
18.	--- empty ---	--:--
19.	--- empty ---	--:--
20.	--- empty ---	--:--

Today
1.	siaalove	02:09.48
2.	jedhen	02:37.51
3.	--- empty ---	--:--
4.	--- empty ---	--:--
5.	--- empty ---	--:--
6.	--- empty ---	--:--
7.	--- empty ---	--:--
8.	--- empty ---	--:--
9.	--- empty ---	--:--
10.	--- empty ---	--:--
11.	--- empty ---	--:--
12.	--- empty ---	--:--
13.	--- empty ---	--:--
14.	--- empty ---	--:--
15.	--- empty ---	--:--
16.	--- empty ---	--:--
17.	--- empty ---	--:--
18.	--- empty ---	--:--
19.	--- empty ---	--:--
20.	--- empty ---	--:--

MO3
1.	coolcoolguy65	00:35.53
2.	vowels	00:41.60
3.	bearn	00:45.18
4.	demian2	00:55.33
5.	zahhydude1	00:55.76
6.	qqwref	00:57.96
7.	DukeAmsterdam	00:59.11
8.	numbrr	00:59.80
9.	anonymous	01:00.82
10.	Kyra05	01:02.97

AO5
1.	coolcoolguy65	00:39.36
2.	vowels	00:44.38
3.	bearn	00:53.87
4.	zahhydude1	00:57.56
5.	qqwref	01:01.66
6.	anonymous	01:02.17
7.	hoodxxc	01:03.89
8.	DukeAmsterdam	01:04.29
9.	numbrr	01:05.68
10.	mp3some	01:05.85

AO12
1.	coolcoolguy65	00:47.66
2.	vowels	00:51.97
3.	bearn	01:00.73
4.	zahhydude1	01:10.35
5.	qqwref	01:11.21
6.	anonymous	01:12.93
7.	mp3some	01:16.44
8.	Yuyinraoliang	01:19.75
9.	numbrr	01:21.16
10.	DukeAmsterdam	01:23.11

Robots / programmatic solvers		info
1.	tlstyer	00:00.008
2.	Charlie Li	00:00.224
3.	yiran	01:50.234

* 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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2025-02-06 19:58:27

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