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
53
00:01.76
2. mtanzer
104
00:02.72
3. sfumato
127
00:02.76
4. qqwref3
60
00:02.83
5. savebog
12
00:03.05
6. AS777 00:03.17
7. qobi
102
00:03.19
8. ackbey 00:03.24
9. Geras
50
00:03.31
10. numbrr
65
00:03.66
11. coolcoolguy65 00:03.72
12. eonhochang
25
00:03.98
13. Another 00:04.20
14. OpOnion
8
00:04.32
15. N4p4l44
57
00:04.48
16. Nicuber
34
00:04.69
16. tsutts42 00:04.69
18. asdfqwer 00:04.72
19. poepjes
24
00:04.78
20. Nick
100
00:04.89
This Week
1. demian2
53
00:01.89
2. coolcoolguy65 00:03.72
3. Sandwurm
2
00:04.97
4. SuperNova719 00:05.51
5. OpOnion
8
00:05.55
6. bestofriendo
17
00:05.66
7. GeorgPfleger
62
00:05.96
8. eonhochang
25
00:06.14
9. bozejulka
7
00:06.60
10. HackMan 00:06.66
11. Niexiaoxi
5
00:06.79
12. DocChunder
4
00:06.86
12. suiop 00:06.86
14. Ezie
11
00:06.90
15. expressace
9
00:07.39
16. Jens
9
00:07.41
17. Qwarp
7
00:07.73
18. Aqua Freeway
33
00:08.31
19. toryx68 00:08.62
20. Crash2005 00:08.75
Today
1. GeorgPfleger
62
00:05.96
2. Jens
9
00:07.41
3. Qwarp
7
00:08.10
4. HappyAlpaca1591 00:10.37
5. zhongjishili 00:16.19
6. HackMan 00:16.97
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
53
00:02.32
2. sfumato
127
00:02.91
3. mtanzer
104
00:03.36
4. PuzzleMaestro
43
00:03.49
5. vowels
89
00:03.65
6. savebog
12
00:03.86
7. IHNN1
8
00:04.12
8. eonhochang
25
00:04.22
9. million
48
00:04.28
10. Geras
50
00:04.31
AO5
1. demian2
53
00:02.44
2. sfumato
127
00:03.20
3. mtanzer
104
00:03.40
4. PuzzleMaestro
43
00:03.62
5. vowels
89
00:03.77
6. savebog
12
00:03.86
7. eonhochang
25
00:04.22
8. IHNN1
8
00:04.33
9. qqwref3
60
00:04.50
10. numbrr
65
00:04.61
AO12
1. demian2
53
00:02.86
2. sfumato
127
00:03.64
3. mtanzer
104
00:04.19
4. vowels
89
00:04.22
5. savebog
12
00:04.63
6. qqwref3
60
00:04.95
7. PuzzleMaestro
43
00:04.96
8. IHNN1
8
00:05.22
9. qobi
102
00:05.28
10. arcer
75
00:05.31
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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2022-01-28 08:20:10

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