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
00:01.63
2. rtj
166
00:03.76
3. eonhochang
29
00:03.79
4. Taro
5
00:03.93
5. ackbey 00:04.21
6. chwen
7
00:04.27
7. MadraMor
96
00:04.42
8. M0RN1NGST4R
2
00:04.67
9. Another 00:04.85
10. lizardwizard433
33
00:04.92
11. qobi
124
00:05.00
12. Duayy
7
00:05.01
13. jaybrainer
50
00:05.20
13. yungdripson 00:05.20
15. Maturin
25
00:05.31
16. Harry_Canyon
37
00:05.37
17. jacku
4
00:05.56
18. GeorgPfleger
66
00:05.78
19. Dorice
128
00:05.97
20. atpx8 00:06.16
This Week
1. demian2
61
00:01.82
2. chwen
7
00:04.27
3. lizardwizard433
33
00:04.92
4. qobi
124
00:05.00
5. Another 00:05.65
6. GeorgPfleger
66
00:05.78
7. momoi
5
00:06.28
8. Taro
5
00:06.47
9. G VOLTT
14
00:06.73
10. Dorice
128
00:07.04
11. dusty 00:07.06
12. ZherTmiR
22
00:07.36
13. whatever1128 00:07.57
14. Dicko-san
69
00:08.20
15. Dystopiik
3
00:08.97
16. kyrawr83 00:09.48
17. HackMan 00:09.55
18. boop
10
00:10.15
19. Robin Mersh
4
00:10.16
20. PumpyBread 00:11.40
Today
1. demian2
61
00:01.82
2. GeorgPfleger
66
00:05.78
3. dusty 00:07.06
4. ZherTmiR
22
00:07.36
5. boop
10
00:10.15
6. HackMan 00:11.28
7. PumpyBread 00:11.40
8. 1q2w3e4r5t
9
00:15.82
9. Rod Ellison
12
00:16.92
10. coolcoolguy65
54
24d 20:31:23.64
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
MO3
1. vowels
138
00:02.27
2. demian2
61
00:02.29
3. sfumato
148
00:02.91
4. nabifan
26
00:03.26
5. mtanzer
123
00:03.34
6. qqwref
154
00:03.35
7. PuzzleMaestro
46
00:03.49
8. savebog
12
00:03.86
9. numbrr
107
00:03.88
10. bearn
112
00:03.99
AO5
1. vowels
138
00:02.38
2. demian2
61
00:02.44
3. mtanzer
123
00:03.13
4. sfumato
148
00:03.20
5. qqwref
154
00:03.37
6. PuzzleMaestro
46
00:03.62
7. nabifan
26
00:03.70
8. bearn
112
00:03.85
9. savebog
12
00:03.86
10. numbrr
107
00:04.06
AO12
1. vowels
138
00:02.63
2. demian2
61
00:02.86
3. sfumato
148
00:03.64
4. qqwref
154
00:03.73
5. mtanzer
123
00:04.16
6. bearn
112
00:04.26
7. Fastfaxer
116
00:04.53
8. savebog
12
00:04.63
9. qobi
124
00:04.78
10. Nick
134
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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2022-07-06 22:04:03

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