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. DukeAmsterdam 00:40.91
2. ypw19
49
00:43.28
3. numbrr
184
00:48.40
4. qobi
167
00:50.33
5. GeorgPfleger
73
00:55.38
6. JOJOOOOOO
48
01:01.51
7. Rickieman86 01:30.83
8. eRogue
39
01:39.26
9. TheBigMD
77
01:42.23
10. Colleen2023 01:42.69
11. ChinaKongfufu
7
01:45.22
12. eonhochang
40
01:48.10
13. 305Tjan 02:00.64
14. AnnaMGS 02:04.38
15. HHong 02:07.46
16. crylandh 02:18.04
17. Richrrad
13
02:27.05
18. brooke1092 02:28.83
19. Chobab 03:16.85
20. Goochelaar
97
03:18.02
This Week
1. ypw19
49
00:43.28
2. GeorgPfleger
73
00:55.38
3. HHong 02:11.18
4. Chobab 03:16.85
5. Dorice
182
04:11.87
6. tangning
2
08:45.79
7. chocolateonions
20
10:26.01
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 -----:--
Today
1. GeorgPfleger
73
00:55.38
2. HHong 02:15.59
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. vowels
197
00:31.91
2. bearn
177
00:35.40
3. demian2
61
00:35.74
4. sfumato
164
00:42.83
5. Icay
140
00:42.93
6. mtanzer
140
00:42.94
7. qqwref
257
00:44.89
8. qobi
167
00:51.01
9. eonhochang
40
00:52.20
10. arcer
89
00:52.65
AO5
1. vowels
197
00:31.91
2. demian2
61
00:37.73
3. bearn
177
00:38.87
4. Icay
140
00:43.17
5. sfumato
164
00:46.40
6. qqwref
257
00:47.95
7. mtanzer
140
00:48.68
8. qobi
167
00:51.01
9. arcer
89
00:53.35
10. eonhochang
40
00:53.77
AO12
1. vowels
197
00:39.61
2. bearn
177
00:44.46
3. Icay
140
00:49.29
4. mtanzer
140
00:54.07
5. qqwref
257
00:56.08
6. qobi
167
01:02.60
7. arcer
89
01:03.09
8. eonhochang
40
01:03.48
9. sfumato
164
01:03.92
10. BingBongBob
106
01:08.49
Robots / programmatic solversinfo  
1.tlstyer
1322
00:00.009
2.Charlie Li
61
00:00.957
3.--- empty -----:--

* 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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2023-09-22 22:35:22

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