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.

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Shikaku


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

This Month
1.ethanc7400:03.09
2.guilherme00:03.22
3.savebog
10
00:03.33
4.trivian
7
00:03.35
5.qobi
52
00:03.42
6.BigChungus00:03.48
7.tuberculosis
13
00:03.69
8.flaccoofshikaku00:03.84
9.Hoomadabomb
12
00:03.93
10.jumaropa00:04.02
11.SirDiscalot
21
00:04.16
12.HannyaMask0700:04.22
13.Seojiwon
16
00:04.30
14.charliejs200200:04.34
15.Reilly00:04.35
16.PseudonymousMAX
11
00:04.45
17.Biocon00:04.57
18.PatrizioMN
4
00:04.61
19.needypest00:04.67
20.Puzzler300:04.68
This Week
1.savebog
10
00:03.33
2.BigChungus00:03.48
3.tuberculosis
13
00:03.69
4.flaccoofshikaku00:04.08
5.jumaropa00:04.12
6.HannyaMask0700:04.22
7.charliejs200200:04.34
8.qobi
52
00:04.40
9.PseudonymousMAX
11
00:04.45
10.SirDiscalot
21
00:05.02
11.PatrizioMN
4
00:05.13
12.Hoomadabomb
12
00:05.59
13.bozejulka
7
00:05.75
14.Atrusario
23
00:05.88
15.deedz00:05.91
16.rinsewithwater
6
00:06.26
17.GeorgPfleger
45
00:06.31
18.GVOLTT00:06.40
19.Fedig
9
00:06.49
20.HackMan00:06.50
Today
1.jumaropa00:04.12
2.charliejs200200:04.34
3.qobi
52
00:04.85
4.SirDiscalot
21
00:05.02
5.Hoomadabomb
12
00:05.59
6.PatrizioMN
4
00:06.16
7.GVOLTT00:06.40
8.tetraxile00:06.58
9.GeorgPfleger
45
00:06.65
10.dan3269600:06.81
11.Unununium
7
00:07.13
12.HackMan00:07.37
13.f0rgs00:08.00
14.Bansa154
28
00:10.90
15.cinderglass00:13.23
16.chube00:15.90
17.Vili900:16.05
18.ChubbyJoe00:19.64
19.--- empty -----:--
20.--- empty -----:--
Robots / programmatic solversinfo  
1.--- empty -----:--
2.--- empty -----:--
3.--- empty -----:--

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