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. numbrr
285
00:06.52
2. ypw19
72
00:11.22
3. Eskimosnake
104
00:13.57
4. qobi
219
00:14.29
5. GeorgPfleger
85
00:15.29
6. Goomy
92
00:16.01
7. syucream
88
00:16.31
8. lew
19
00:16.58
9. Kyra05
73
00:16.91
10. RichWoods 00:18.95
11. Arok
107
00:19.18
12. HDXX123456789 00:19.59
13. Krpyy 00:23.79
14. DevSlicer 00:23.99
15. DJdeMaster
38
00:24.71
16. Dorice
236
00:24.82
17. zhanglin1982
53
00:27.74
18. 廖得然
5
00:28.51
19. angelina4fina 00:28.82
20. dbut2
32
00:31.65
This Week
1. GeorgPfleger
85
00:16.58
2. Arok
107
00:19.18
3. HDXX123456789 00:19.59
4. RichWoods 00:23.77
5. Krpyy 00:23.79
6. DJdeMaster
38
00:24.71
7. Dorice
236
00:25.92
8. 廖得然
5
00:28.51
9. DevSlicer 00:28.95
10. Rinno 00:32.26
11. IzAlexandre2
114
00:34.41
12. NNU未央
7
00:41.69
13. wyq97 00:44.29
14. liora nasya
4
00:45.46
15. RavenSandcastle 00:50.05
16. abandon777
46
01:10.68
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. GeorgPfleger
85
00:23.90
2. Rinno 00:32.26
3. Dorice
236
00:49.48
4. RavenSandcastle 00:50.05
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. zahhydude1
179
00:08.04
2. vowels
214
00:08.48
3. demian2
61
00:08.79
4. bearn
206
00:09.79
5. Tobi Ente
106
00:09.97
6. coolcoolguy65
149
00:10.12
7. numbrr
285
00:10.50
8. JZE
59
00:11.52
9. Vicellen
11
00:12.39
10. haramey
225
00:12.60
AO5
1. zahhydude1
179
00:08.32
2. vowels
214
00:09.47
3. demian2
61
00:09.82
4. Tobi Ente
106
00:10.47
5. numbrr
285
00:10.79
6. bearn
206
00:11.41
7. coolcoolguy65
149
00:12.11
8. JZE
59
00:12.31
9. sfumato
165
00:12.97
10. qqwref
259
00:13.05
AO12
1. zahhydude1
179
00:10.30
2. vowels
214
00:10.59
3. Tobi Ente
106
00:12.08
4. bearn
206
00:13.05
5. coolcoolguy65
149
00:13.11
6. numbrr
285
00:13.35
7. demian2
61
00:13.78
8. JZE
59
00:15.61
9. qqwref
259
00:15.82
10. sfumato
165
00:16.09
Robots / programmatic solversinfo  
1.tlstyer
106
00:00.006
2.Charlie Li
61
00:00.208
3.Paul Bismuth
1
00:02.423

* 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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2025-03-28 16:46:31

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