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
00:23.14
2. vowels
138
00:27.99
3. eonhochang
29
00:52.97
4. qobi
124
00:53.31
5. Dorice
128
00:56.55
6. alzi4825 00:57.87
7. ooriginallname
44
01:00.20
8. Geras
59
01:01.27
9. GeorgPfleger
66
01:09.04
10. Ailurus
102
01:25.74
11. Make
134
01:29.97
12. Harry_Canyon
38
01:34.02
13. Skutti 01:37.14
14. no1mayjah
45
01:59.29
15. missphy6
26
02:20.66
16. Dystopiik
3
02:24.93
17. Leon01 02:26.38
18. feasel
42
02:28.20
19. Taiwan1min 02:35.46
20. zzingzi
16
02:51.32
This Week
1. qobi
124
00:53.31
2. alzi4825 00:57.87
3. Geras
59
01:01.27
4. GeorgPfleger
66
01:09.04
5. missphy6
26
02:20.66
6. Dystopiik
3
02:24.93
7. feasel
42
02:28.20
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. alzi4825 00:57.87
2. GeorgPfleger
66
01:09.04
3. missphy6
26
03:57.91
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. demian2
61
00:35.74
2. vowels
138
00:38.76
3. sfumato
148
00:42.83
4. mtanzer
123
00:42.94
5. qqwref
154
00:44.89
6. qobi
124
00:51.01
7. arcer
86
00:52.65
8. Sam9375
159
00:53.29
9. bearn
112
00:55.43
10. eonhochang
29
00:56.74
AO5
1. demian2
61
00:37.73
2. vowels
138
00:41.37
3. sfumato
148
00:46.40
4. qqwref
154
00:47.95
5. mtanzer
123
00:48.68
6. qobi
124
00:51.01
7. arcer
86
00:53.35
8. bearn
112
00:57.28
9. Sam9375
159
00:58.07
10. eonhochang
29
00:58.18
AO12
1. vowels
138
00:47.00
2. mtanzer
123
00:54.07
3. qqwref
154
00:56.08
4. qobi
124
01:02.60
5. arcer
86
01:03.09
6. sfumato
148
01:03.92
7. bearn
112
01:04.14
8. Sam9375
159
01:12.86
9. hoodxxc
112
01:13.88
10. eonhochang
29
01:16.09
Robots / programmatic solversinfo  
1.tlstyer
1314
00:00.009
2.Charlie Li
60
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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2022-07-06 23:08:37

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