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. Yuyinraoliang
57
 00:02.23
2. raffi17 00:02.63
3. ypw19
63
 00:02.73
4. Landon9 00:02.91
5. aaronm118
7
 00:02.96
6. Yuyinraoliang_1
14
 00:03.09
7. zebramachine 00:03.37
8. CieMichu
13
 00:03.60
9. cesarsalad 00:03.68
10. Goomy
80
 00:03.75
11. giotskh
146
 00:03.87
12. L0S3RPUP
14
 00:03.93
13. Matheart 00:03.97
14. Abigail Young
35
 00:03.98
15. ackbey 00:04.14
16. omega_
33
 00:04.46
17. dg4444 00:04.50
18. prinsed
21
 00:04.69
19. yujh
15
 00:04.81
20. qobi
213
 00:04.91
This Week
1. Yuyinraoliang
57
 00:02.23
2. raffi17 00:02.99
3. zebramachine 00:03.37
4. giotskh
146
 00:03.87
5. Matheart 00:03.97
6. L0S3RPUP
14
 00:04.53
7. prinsed
21
 00:04.69
8. Goomy
80
 00:04.75
9. yujh
15
 00:04.81
10. qobi
213
 00:04.91
11. SirDiscalot
25
 00:05.06
12. Jerz00
21
 00:05.17
13. GeorgPfleger
82
 00:05.23
14. MuteNute
4
 00:06.20
15. HDXX123456789 00:06.27
16. toryx68 00:06.73
17. grimmgirlfandom
134
 00:06.98
18. venipede 00:07.01
19. zhanglin1982
34
 00:07.68
20. chube 00:07.91
Today
1. GeorgPfleger
82
 00:05.23
2. MuteNute
4
 00:06.20
3. venipede 00:07.01
4. zhanglin1982
34
 00:07.68
5. angelina4fina 00:08.34
6. jaripetteri
68
 00:09.30
7. yoisuckatthis 00:09.58
8. Chaarlie 00:12.51
9. 吕德淞
2
 00:16.71
10. roachez 00:23.48
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
MO3
1. zahhydude1
172
 00:01.48
2. vowels
214
 00:01.80
3. nabi
92
 00:02.07
4. CYrZx123
38
 00:02.28
5. demian2
61
 00:02.29
5. BingBongBob
107
 00:02.29
7. numbrr
276
 00:02.73
8. jaybrainer
213
 00:02.76
9. JZE
49
 00:02.79
10. qqwref
259
 00:02.82
AO5
1. zahhydude1
172
 00:01.59
2. vowels
214
 00:01.94
3. nabi
92
 00:02.21
4. BingBongBob
107
 00:02.40
5. demian2
61
 00:02.44
6. CYrZx123
38
 00:02.52
7. numbrr
276
 00:02.83
8. jaybrainer
213
 00:02.88
9. JZE
49
 00:03.01
10. coolcoolguy65
143
 00:03.05
AO12
1. zahhydude1
172
 00:01.85
2. vowels
214
 00:02.02
3. nabi
92
 00:02.41
4. demian2
61
 00:02.86
5. BingBongBob
107
 00:02.88
5. CYrZx123
38
 00:02.88
7. jaybrainer
213
 00:03.22
8. Vicell
9
 00:03.30
9. numbrr
276
 00:03.35
10. bearn
206
 00:03.47
Robots / programmatic solversinfo  
1.tlstyer
101
00:00.006
2.Charlie Li
61
00:00.211
3.xXEZXx
7
00:04.868

* 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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2025-01-24 19:32:30

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