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.	demian2	00:06.48
2.	demian	00:07.43
3.	vowels	00:07.90
4.	qqwref	00:09.19
5.	numbrr	00:14.20
6.	qobi	00:14.28
7.	Tobi Ente	00:14.48
8.	DukeAmsterdam	00:14.62
9.	GeorgPfleger	00:15.07
10.	eonhochang	00:15.64
11.	Harry_Canyon	00:17.59
12.	rtj	00:20.97
13.	Georgi52	00:21.76
14.	Dorice	00:22.45
15.	kyrawr83	00:23.21
16.	sredmond	00:25.25
17.	Onegaminus	00:25.59
18.	cedric0110	00:26.01
19.	curi	00:26.23
20.	Victorious1	00:26.92

This Week
1.	demian2	00:06.89
2.	qobi	00:14.28
3.	Tobi Ente	00:14.48
4.	GeorgPfleger	00:15.07
5.	Georgi52	00:21.76
6.	kyrawr83	00:23.21
7.	Harry_Canyon	00:28.28
8.	Dorice	00:28.45
9.	boop	00:33.72
10.	curi	00:41.92
11.	Dystopiik	00:44.77
12.	whatever1128	00:51.77
13.	feasel	00:52.91
14.	ZherTmiR	00:52.99
15.	Varun Gopal	01:22.14
16.	--- empty ---	--:--
17.	--- empty ---	--:--
18.	--- empty ---	--:--
19.	--- empty ---	--:--
20.	--- empty ---	--:--

Today
1.	demian2	00:07.41
2.	Tobi Ente	00:14.48
3.	GeorgPfleger	00:15.07
4.	Georgi52	00:27.95
5.	boop	00:33.72
6.	ZherTmiR	00:52.99
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.	demian2	00:08.79
2.	vowels	00:10.22
3.	sfumato	00:12.77
4.	qqwref	00:12.91
5.	qobi	00:13.41
6.	mtanzer	00:13.71
7.	Tobi Ente	00:14.35
8.	funuyu#8070	00:14.74
9.	bearn	00:15.74
10.	ichigo	00:15.89

AO5
1.	demian2	00:09.82
2.	vowels	00:10.54
3.	sfumato	00:12.97
4.	qqwref	00:13.05
5.	qobi	00:13.89
6.	bearn	00:14.17
7.	mtanzer	00:14.31
8.	Tobi Ente	00:15.79
9.	ichigo	00:16.33
10.	numbrr	00:16.35

AO12
1.	vowels	00:10.95
2.	demian2	00:13.78
3.	qqwref	00:15.82
4.	sfumato	00:16.09
5.	qobi	00:17.04
6.	mtanzer	00:18.53
7.	funuyu#8070	00:19.04
8.	Fastfaxer	00:19.82
9.	bearn	00:19.96
10.	ichigo	00:20.39

Robots / programmatic solvers		info
1.	tlstyer	00:00.009
2.	Charlie Li	00:00.874
3.	--- empty ---	--:--

* 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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2022-07-06 23:20:39

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