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...
113
00:07.27
2. vowels
216
01:25.21
3. suuperch
121
01:37.45
4. coolcoolguy65
151
01:42.71
5. moonjady
343
01:42.94
6. Icay
188
01:52.35
7. ypw19
75
01:57.50
8. kdu
185
01:59.48
9. Namae
62
01:59.74
10. Yuyinraoliang
58
02:05.27
AO5
1. Vanessa Thaisa Anton...
113
00:08.16
2. vowels
216
01:31.40
3. suuperch
121
01:40.94
4. ypw19
75
01:57.50
5. Icay
188
01:57.59
6. coolcoolguy65
151
01:58.95
7. kdu
185
02:05.16
8. Yuyinraoliang
58
02:06.23
9.anonymous
61
02:08.29
10. moonjady
343
02:11.10
AO12
1. vowels
216
01:45.27
2. suuperch
121
01:58.84
3. ypw19
75
02:09.62
4. Icay
188
02:16.92
5. Yuyinraoliang
58
02:20.46
6.anonymous
61
02:20.70
7. mp3some
92
02:23.90
8. hoodxxc
222
02:25.89
9. Kyra05
73
02:32.69
10. moonjady
343
02:32.80
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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2025-07-01 02:38:09

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