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
59
00:01.86
2. vowels
132
00:02.49
3. boru
29
00:03.52
4. BingBongBob
11
00:03.68
5. SuperNova719 00:03.80
6. JakiuPL
14
00:04.08
6. dmetro
59
00:04.08
8. Another 00:04.09
9. ackbey 00:04.20
10. Arzhang 00:04.23
11. cherrygelato_
8
00:04.38
12. Dymond
145
00:04.42
13. птну пиZдец
41
00:04.58
14. qobi
120
00:04.65
15. trivian
7
00:04.74
16. Axiomatically_confus...
13
00:04.85
17. yiran 00:04.88
18. NITOX 00:04.93
19. Dorice
123
00:05.03
20. nate0413 00:05.17
This Week
1. demian2
59
00:01.91
2. vowels
132
00:02.51
3. BingBongBob
11
00:03.68
4. Another 00:04.28
5. Arzhang 00:04.41
6. eonhochang
27
00:05.33
7. Arturoxd
25
00:05.37
8. Axiomatically_confus...
13
00:05.41
9. GeorgPfleger
65
00:05.91
10. jai22933
2
00:06.36
11. losingreallybad
70
00:06.42
12. kennethaw88
46
00:06.46
13. eRogue
29
00:06.68
14. Dorice
123
00:06.90
15. SuisoKjuu
5
00:07.23
16. MissDai
6
00:07.64
17. totallynotalvin
3
00:07.88
18. Crusher 00:07.98
19. nate0413 00:08.17
20. HappyAlpaca1591 00:09.29
Today
1. Another 00:04.28
2. eonhochang
27
00:05.47
3. kennethaw88
46
00:06.46
4. bethisonline 00:14.88
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
59
00:02.29
2. vowels
132
00:02.57
3. sfumato
144
00:02.91
4. mtanzer
123
00:03.34
5. qqwref
139
00:03.35
6. PuzzleMaestro
45
00:03.49
7. savebog
12
00:03.86
8. numbrr
99
00:03.88
9. bearn
108
00:03.99
10. Geras
56
00:04.01
AO5
1. demian2
59
00:02.44
2. vowels
132
00:02.77
3. mtanzer
123
00:03.13
4. sfumato
144
00:03.20
5. qqwref
139
00:03.37
6. PuzzleMaestro
45
00:03.62
7. bearn
108
00:03.85
8. savebog
12
00:03.86
9. numbrr
99
00:04.06
10. Fastfaxer
115
00:04.16
AO12
1. demian2
59
00:02.86
2. vowels
132
00:03.05
3. sfumato
144
00:03.64
4. qqwref
139
00:03.73
5. mtanzer
123
00:04.16
6. bearn
108
00:04.26
7. Fastfaxer
115
00:04.53
8. savebog
12
00:04.63
9. qobi
120
00:04.78
10. Nick
130
00:04.86
Robots / programmatic solversinfo  
1.tlstyer
1314
00:00.009
2.Charlie Li
60
00:00.709
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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2022-05-29 04:25:47

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