Shikaku


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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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Shikaku


5x5 Shikaku | 7x7 Shikaku | 10x10 Shikaku | 15x15 Shikaku | 20x20 Shikaku | 25x25 Shikaku

This Month
1.BigChungus00:03.21
2.kimsephia00:03.55
3.SirDiscalot
24
00:03.66
4.M_at_s
5
00:03.77
5.triipzz00:04.19
6.arcer
30
00:04.27
7.kaitas
5
00:04.38
8.qobi
61
00:04.49
8.tempest
5
00:04.49
10.pnguyen379
12
00:04.64
11.caramelcookie00:04.81
12.erquanmen
22
00:04.83
13.jumaropa00:04.88
14.PatrizioMN
4
00:04.97
15.GeorgPfleger
51
00:05.09
16.Parade00:05.15
17.Salnom
11
00:05.30
18.cymopolea00:05.47
19.funky
2
00:05.49
20.Salmon
8
00:05.52
This Week
1.arcer
30
00:04.27
2.kimsephia00:04.37
3.qobi
61
00:04.49
4.SirDiscalot
24
00:04.69
5.GeorgPfleger
51
00:05.09
6.Parade00:05.15
7.PatrizioMN
4
00:05.46
8.cymopolea00:05.47
9.bell12100:05.54
10.ava112800:05.67
11.bestofriendo
9
00:06.37
12.Malaia
9
00:06.45
13.peeballs1700:06.55
14.zycyyds00:07.15
15.Oddball
4
00:07.58
16.123456hh00:07.60
17.Doodle Sprocket
31
00:08.62
18.Dorice
59
00:08.84
19.Abubble100:08.97
20.reddevil66600:09.15
Today
1.qobi
61
00:04.88
2.GeorgPfleger
51
00:07.35
3.Dorice
59
00:08.84
4.reddevil66600:09.15
5.naturesinfamy
16
00:09.77
6.Misha1400:10.33
7.millivaen00:11.25
8.ccoo1618
23
00:21.03
9.lengmo
16
00:29.43
10.--- empty -----:--
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Robots / programmatic solversinfo  
1.Charlie Li
60
00:00.70
2.--- empty -----:--
3.--- empty -----:--

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