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
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This Week
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Today
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MO3
1. Vanessa Thaisa Anton...
117
00:11.38
2. coolcoolguy65
156
01:57.41
3. vowels
216
02:05.78
4. suuperch
121
02:26.43
5. Icay
191
02:27.44
6. hoodxxc
225
02:37.55
7.anonymous
61
02:40.06
8. Yuyinraoliang
59
02:43.40
9.anonymous
75
02:43.96
10. mp3some
95
02:49.68
AO5
1. Vanessa Thaisa Anton...
117
00:11.96
2. coolcoolguy65
156
01:59.25
3. vowels
216
02:09.52
4. suuperch
121
02:24.65
5. Icay
191
02:33.52
6. hoodxxc
225
02:41.41
7. FAlin
193
02:54.03
8. Namae
62
02:55.52
9. Yuyinraoliang
59
02:55.76
10. haramey
231
02:59.58
AO12
1. vowels
216
02:26.15
2. suuperch
121
02:44.45
3. hoodxxc
225
03:04.81
4. mp3some
95
03:12.28
5.anonymous
61
03:13.88
6. Yuyinraoliang
59
03:17.82
7. Icay
191
03:20.59
8. kdu
199
03:21.18
9. qqwref
260
03:29.11
10. haramey
231
03:30.26
Robots / programmatic solversinfo  
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* 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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2025-09-18 07:26:08

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