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
00:07.77
2. Another 00:12.40
3. nabifan
68
00:12.97
4. Tobi Ente
31
00:12.99
5. qobi
142
00:13.35
6. GeorgPfleger
69
00:15.07
7. Icay
93
00:15.71
8. Georgi52 00:18.27
9. nrtz
79
00:19.11
10. Dorice
148
00:20.56
11. ChiefOsceola 00:22.94
12. BlueOcarina
64
00:25.60
13. Goubtless
27
00:27.31
14. KoenDe3e 00:27.58
15. Hansen 00:28.02
16. nosenugget
81
00:28.33
17. DogeFall
15
00:28.77
18. SmallBlack 00:28.90
19. sprstition
24
00:39.16
20. xianglin 00:40.71
This Week
1. Another 00:12.40
2. GeorgPfleger
69
00:15.07
3. Icay
93
00:15.71
4. Georgi52 00:19.79
5. KoenDe3e 00:27.58
6. DogeFall
15
00:28.77
7. shih55 01:06.13
8. ukiishi 01:11.31
9. gepap 01:13.65
10. inequality 01:55.08
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. Georgi52 00:31.72
2. shih55 01:06.13
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. demian2
61
00:08.79
2. vowels
171
00:09.90
3. sfumato
160
00:12.77
4. qqwref
203
00:12.91
5. qobi
142
00:13.41
6. mtanzer
140
00:13.71
7. Tobi Ente
31
00:14.35
8. funuyu#8070
33
00:14.74
9. BingBongBob
76
00:15.55
10. bearn
127
00:15.74
AO5
1. demian2
61
00:09.82
2. vowels
171
00:10.09
3. sfumato
160
00:12.97
4. qqwref
203
00:13.05
5. qobi
142
00:13.89
6. bearn
127
00:14.17
7. mtanzer
140
00:14.31
8. Tobi Ente
31
00:15.79
9. ichigo
28
00:16.33
10. numbrr
132
00:16.35
AO12
1. vowels
171
00:10.95
2. demian2
61
00:13.78
3. qqwref
203
00:15.82
4. sfumato
160
00:16.09
5. mtanzer
140
00:17.02
6. qobi
142
00:17.04
7. funuyu#8070
33
00:19.04
8. Fastfaxer
117
00:19.82
9. bearn
127
00:19.96
10. ichigo
28
00:20.39
Robots / programmatic solversinfo  
1.tlstyer
1314
00:00.009
2.Charlie Li
60
00:00.874
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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2022-11-29 05:32:47

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