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. keehaag
164
 00:03.38
2. hayei 00:03.39
3. Green.wolf._
9
 00:03.46
4. kinbo71
15
 00:03.68
5. kroller
18
 00:03.75
6. lxy082 00:03.80
7. 131a562
10
 00:03.85
8. Flexo
41
 00:04.13
9. Emberana
20
 00:04.19
10. vilodi
126
 00:04.25
11. trLBumm
29
 00:04.30
12. IAmLoup
29
 00:04.41
13. Sokovik
22
 00:04.47
14. thall
58
 00:04.60
14. Dorice
260
 00:04.60
16. Emzed
58
 00:04.95
17. pickeli
5
 00:04.96
18. toryx68 00:04.98
19. MushroomsCavern
47
 00:05.10
20. GeorgPfleger
95
 00:05.18
This Week
1. lxy082 00:03.80
2. 131a562
10
 00:03.85
3. Sokovik
22
 00:04.47
4. Green.wolf._
9
 00:04.55
5. Dorice
260
 00:04.60
6. pickeli
5
 00:04.96
7. MushroomsCavern
47
 00:05.10
8. kaede1111
4
 00:05.47
9. Educated-cat
48
 00:05.74
10. Gelko Nako
2
 00:06.25
11. GeorgPfleger
95
 00:06.29
12. MarlingMath 00:07.12
13. Rodrix50 00:07.34
14. Mazuzon 00:08.37
15. RaymondSB 00:08.67
16. kabooskcha 00:08.72
17. Fjznbeinfnn
12
 00:08.83
18. MISAKI11037 00:09.64
19. kaligali
2
 00:09.85
20. Bas79
33
 00:10.12
Today
1. Green.wolf._
9
 00:04.73
2. pickeli
5
 00:04.96
3. GeorgPfleger
95
 00:06.32
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. zahhydude1
210
 00:01.45
2. vowels
216
 00:01.80
3. CYrZx123
55
 00:01.95
4. nabi
92
 00:02.07
5. demian2
61
 00:02.29
5. BingBongBob
108
 00:02.29
7. jaybrainer
250
 00:02.54
8. numbrr
306
 00:02.72
9.anonymous
11
 00:02.73
10. JZE
87
 00:02.79
AO5
1. zahhydude1
210
 00:01.56
2. vowels
216
 00:01.94
3. CYrZx123
55
 00:02.05
4. nabi
92
 00:02.21
5. BingBongBob
108
 00:02.40
6. demian2
61
 00:02.44
7. numbrr
306
 00:02.83
8. jaybrainer
250
 00:02.88
9.anonymous
11
 00:02.89
10. JZE
87
 00:03.01
AO12
1. zahhydude1
210
 00:01.74
2. vowels
216
 00:02.02
3. CYrZx123
55
 00:02.35
4. nabi
92
 00:02.41
5. demian2
61
 00:02.86
6. BingBongBob
108
 00:02.88
7.anonymous
11
 00:02.94
8. jaybrainer
250
 00:03.00
9. numbrr
306
 00:03.22
10. Vicell
9
 00:03.30
Robots / programmatic solversinfo  
1.tlstyer
140
00:00.006
2.Charlie Li
61
00:00.211
3.Paul Bismuth
1
00:01.045

* 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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2026-02-05 10:13:35

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