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. coolcoolguy65
114
00:14.22
2. numbrr
240
00:18.98
3. YYRL1 00:28.61
4. Yuyinraoliang
42
00:29.78
5. Ermouf
61
00:34.51
6. GeorgPfleger
77
00:37.77
7. John9439
101
00:39.24
8. BestSlanterEver 00:39.90
9. Lanmo
25
00:41.63
10. HDXX123456789 00:55.37
11. Ilbibi
35
01:06.19
12. Batrach
50
01:06.71
13. apple0
35
01:07.32
14. colwellblaine 01:07.80
15. Nanoulefou 01:11.34
16. ScorpionMax 01:14.27
17. pranavhk 01:16.49
18. grimmgirlfandom
79
01:20.01
19. Pope Gadget
9
01:25.99
20. fox1204 01:33.98
This Week
1. coolcoolguy65
114
00:14.22
2. GeorgPfleger
77
00:37.77
3. Lanmo
25
00:41.63
4. HDXX123456789 00:56.02
5. Batrach
50
01:06.71
6. grimmgirlfandom
79
01:20.01
7. Trichinclay
8
02:21.05
8. Keumar 02:23.74
9. Koakuma
40
03:51.15
10.--- empty -----:--
11.--- empty -----:--
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14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. Lanmo
25
00:55.05
2. Trichinclay
8
02:21.05
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. zahhydude1
113
00:17.66
2. vowels
202
00:17.91
3. demian2
61
00:19.43
4. coolcoolguy65
114
00:19.84
5. bearn
196
00:20.58
6. Luke Pickett
14
00:24.19
7. Icay
171
00:25.90
8. numbrr
240
00:26.08
9. DukeAmsterdam
43
00:27.03
10. qqwref
259
00:27.25
AO5
1. vowels
202
00:18.50
2. zahhydude1
113
00:19.23
3. demian2
61
00:21.11
4. coolcoolguy65
114
00:21.75
5. bearn
196
00:22.87
6. qqwref
259
00:26.32
7. numbrr
240
00:27.47
8. haramey
185
00:29.77
9. Luke Pickett
14
00:29.96
10. sfumato
164
00:30.16
AO12
1. vowels
202
00:22.07
2. zahhydude1
113
00:24.21
3. coolcoolguy65
114
00:25.09
4. bearn
196
00:26.73
5. numbrr
240
00:29.85
6. Icay
171
00:31.14
7. qqwref
259
00:32.21
8. sfumato
164
00:33.58
9. haramey
185
00:35.26
10. qobi
193
00:36.53
Robots / programmatic solversinfo  
1.tlstyer
13
00:00.009
2.Charlie Li
61
00:00.871
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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2024-05-21 08:12:44

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