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. demian2
61
00:13.21
2. eonhochang
29
00:28.47
3. qobi
124
00:28.69
4. alzi4825 00:31.57
5. GeorgPfleger
66
00:43.04
6. Harry_Canyon
38
00:43.55
7. alize 00:46.88
8. rtj
166
00:47.23
9. Dinosaur 00:48.61
10. no1mayjah
45
00:52.67
11. kennethaw88
57
01:02.85
12. Make
134
01:03.47
13. Dorice
128
01:04.18
14. Julia Conti
2
01:09.14
15. curi
27
01:13.64
16. yzl497
21
01:14.70
17. sylvia977
14
01:16.73
18. HHong 01:31.41
19. HerrPfeffer
12
01:37.56
20. HackMan 01:38.68
This Week
1. demian2
61
00:13.21
2. qobi
124
00:28.69
3. alzi4825 00:31.57
4. GeorgPfleger
66
00:43.04
5. Harry_Canyon
38
00:43.55
6. alize 00:46.88
7. kennethaw88
57
01:02.85
8. Julia Conti
2
01:09.14
9. curi
27
01:13.64
10. Dorice
128
01:16.91
11. HHong 01:36.22
12. feasel
42
01:49.48
13. 1q2w3e4r5t
9
02:33.30
14. rover 02:36.25
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. alzi4825 00:31.57
2. GeorgPfleger
66
00:43.04
3. alize 00:53.41
4. kennethaw88
57
01:02.85
5. curi
27
01:13.64
6. HHong 01:36.22
7. 1q2w3e4r5t
9
02:33.30
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. demian2
61
00:19.43
2. vowels
138
00:21.51
3. qqwref
154
00:27.84
4. qobi
124
00:28.02
4. bearn
112
00:28.02
6. sfumato
148
00:28.26
7. mtanzer
123
00:30.34
8. major414
52
00:36.48
9. Geras
59
00:36.55
10. Andy100
80
00:37.02
AO5
1. demian2
61
00:21.11
2. vowels
138
00:25.07
3. qqwref
154
00:26.32
4. bearn
112
00:29.92
5. sfumato
148
00:30.16
6. qobi
124
00:31.12
7. mtanzer
123
00:34.86
8. eonhochang
29
00:38.25
9. Fastfaxer
116
00:39.10
10. Geras
59
00:39.42
AO12
1. vowels
138
00:28.88
2. qqwref
154
00:32.21
3. sfumato
148
00:33.58
4. bearn
112
00:35.07
5. qobi
124
00:36.53
6. mtanzer
123
00:44.28
7. Geras
59
00:44.71
8. Andy100
80
00:45.18
9. Sam9375
159
00:46.29
10. eonhochang
29
00:46.64
Robots / programmatic solversinfo  
1.tlstyer
1314
00:00.009
2.Charlie Li
60
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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2022-07-06 23:15:09

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