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
00:01.83
2. vowels
162
00:02.60
3. Zahhydude2 00:02.63
4. eonhochang
30
00:02.98
5. ackbey 00:03.31
5. 09Ash
1
00:03.31
7. rangkey 00:03.67
8. businesspig1 00:03.71
9. GlowBlock64 00:03.82
10. BingBongBob
65
00:03.89
11. jai22933
12
00:03.96
12. G1LLi 00:04.33
13. snowiyy
2
00:04.51
14. qobi
134
00:04.60
15. Sushi554 00:04.68
16. DorianSmiles88 00:05.02
17. Another 00:05.09
18. Simon Gidrewicz
4
00:05.15
19. GeorgPfleger
68
00:05.20
20. shahar 00:05.25
This Week
1. 09Ash
1
00:03.31
2. ackbey 00:03.66
3. DorianSmiles88 00:05.02
4. GeorgPfleger
68
00:05.20
5. shahar 00:05.25
6. charliejs2002 00:05.38
7. Einsteinus
75
00:05.79
8. Kyra05
28
00:05.84
9. probably
3
00:05.87
10. sapphire
10
00:05.95
11. soup34 00:07.82
12. TheVinn 00:08.55
13. EpimetheusElmerGlue
1
00:08.63
14. germansnorter
15
00:08.99
15. math012 00:09.04
16. Juv4xxYT 00:09.24
17. bestofriendo
19
00:09.38
18. INeedMore_Coffee
3
00:09.62
19. peha13
124
00:10.38
20. joemama420 00:10.78
Today
1. ackbey 00:04.41
2. GeorgPfleger
68
00:05.20
3. soup34 00:07.82
4. INeedMore_Coffee
3
00:09.62
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. vowels
162
00:02.27
2. demian2
61
00:02.29
3. sfumato
159
00:02.91
4. jai22933
12
00:03.04
5. Vicell
6
00:03.11
6. BingBongBob
65
00:03.16
7. mtanzer
139
00:03.19
8. nabifan
57
00:03.26
9. qqwref
188
00:03.35
10. PuzzleMaestro
51
00:03.49
AO5
1. vowels
162
00:02.36
2. demian2
61
00:02.44
3. mtanzer
139
00:03.13
4. Vicell
6
00:03.14
5. BingBongBob
65
00:03.16
6. sfumato
159
00:03.20
7. jai22933
12
00:03.21
8. qqwref
188
00:03.37
9. nabifan
57
00:03.43
10. PuzzleMaestro
51
00:03.62
AO12
1. vowels
162
00:02.63
2. demian2
61
00:02.86
3. Vicell
6
00:03.30
4. BingBongBob
65
00:03.48
5. jai22933
12
00:03.51
6. sfumato
159
00:03.64
7. qqwref
188
00:03.73
8. mtanzer
139
00:04.16
9. bearn
125
00:04.26
10. Fastfaxer
117
00:04.53
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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2022-10-04 22:05:36

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