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.	tanginess	00:49.23
2.	qobi	00:59.35
3.	GeorgPfleger	01:02.64
4.	Dorice	01:07.27
5.	venipede	01:17.17
6.	st16neo	01:28.52
7.	MarkSnail	01:36.73
8.	Solus	01:36.89
9.	k03ih01	01:42.22
10.	Jazka	01:42.76
11.	nbapip	01:49.48
12.	Fxyslaw	01:51.15
13.	CauDravan	01:55.23
14.	TheRealSavikivi	01:55.34
15.	Jt4096	02:01.47
16.	danpuzzler	02:03.24
17.	cyrus#9023	02:07.61
18.	teacherW66	02:16.73
19.	h kim	02:22.37
20.	goalsgoals	02:25.81

This Week
1.	Dorice	01:23.86
2.	GeorgPfleger	01:24.59
3.	CauDravan	01:55.23
4.	TheRealSavikivi	01:55.34
5.	cyrus#9023	02:07.61
6.	teacherW66	02:16.73
7.	bambamharibo	02:42.36
8.	rob69	03:12.14
9.	Dchair	04:27.01
10.	TinyMonkeVr	24d 20:31:23.64
11.	--- empty ---	--:--
12.	--- empty ---	--:--
13.	--- empty ---	--:--
14.	--- empty ---	--:--
15.	--- empty ---	--:--
16.	--- empty ---	--:--
17.	--- empty ---	--:--
18.	--- empty ---	--:--
19.	--- empty ---	--:--
20.	--- empty ---	--:--

Today
1.	GeorgPfleger	01:25.35
2.	Dchair	04:27.01
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	00:27.60
2.	vowels	00:31.91
3.	bearn	00:35.40
4.	zahhydude1	00:35.59
5.	demian2	00:35.74
6.	numbrr	00:35.88
7.	ypw19	00:35.90
8.	JZE	00:38.08
9.	sfumato	00:42.83
10.	Icay	00:42.93

AO5
1.	coolcoolguy65	00:30.02
2.	vowels	00:31.91
3.	JZE	00:37.20
4.	demian2	00:37.73
5.	zahhydude1	00:37.79
6.	numbrr	00:38.80
7.	bearn	00:38.87
8.	Icay	00:43.17
9.	TheUgly	00:43.38
10.	ypw19	00:43.46

AO12
1.	coolcoolguy65	00:37.11
2.	vowels	00:39.61
3.	zahhydude1	00:43.79
4.	JZE	00:44.03
5.	bearn	00:44.46
6.	numbrr	00:48.35
7.	Icay	00:49.29
8.	ypw19	00:52.89
9.	mtanzer	00:54.07
10.	TheUgly	00:56.03

Robots / programmatic solvers		info
1.	tlstyer	00:00.007
2.	Charlie Li	00:00.222
3.	Paul Bismuth	00:04.179

* 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.
You need to be logged in to track your averages

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2025-12-08 23:37:24

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