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. Vicellen
15
 00:02.21
2. oli g
12
 00:02.83
3. flaccoofshikaku 00:03.10
4. Aditzu 00:03.23
5. ClementLauw 00:03.32
6. Calvin Anderson
5
 00:03.35
7. brtjpk
7
 00:03.46
8. Blobster
19
 00:03.58
9. Lucas Coquard
8
 00:03.61
10. Yuyinraoliang
61
 00:03.62
11. giotskh
181
 00:03.63
12. FxdeSlxyr
3
 00:03.66
13. bartus 00:03.81
14. siodmy
13
 00:03.96
15. CALVOMAN
3
 00:04.04
16. bennyshikaku 00:04.07
17. ducky3 00:04.13
17. PrankHDevil 00:04.13
19. qobi
235
 00:04.15
20. hkjsf
154
 00:04.16
This Week
1. oli g
12
 00:02.83
2. ClementLauw 00:03.32
3. brtjpk
7
 00:03.46
4. giotskh
181
 00:03.63
5. FxdeSlxyr
3
 00:03.66
6. hkjsf
154
 00:04.16
7. モグモグ
45
 00:04.39
8. dupadupa123 00:04.45
9. bird
18
 00:04.73
10. Monika Ba
11
 00:04.77
11. mysterium
17
 00:04.82
12. GeorgPfleger
96
 00:05.15
13. seanmvrvrvvrth
3
 00:05.29
14. BrunoValads
9
 00:05.32
15. hideotter 00:05.35
16. Sampas 00:05.61
17. jBEEEE 00:05.73
18. LaserEmoj1 00:06.28
19. 50euros 00:06.37
20. Dorice
264
 00:06.50
Today
1. SongY 00:06.77
2.--- empty -----:--
3.--- empty -----:--
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
211
 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
255
 00:02.54
8. numbrr
309
 00:02.70
9.anonymous
11
 00:02.73
10. JZE
87
 00:02.79
AO5
1. zahhydude1
211
 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
309
 00:02.61
8. jaybrainer
255
 00:02.88
9.anonymous
11
 00:02.89
10. JZE
87
 00:03.01
AO12
1. zahhydude1
211
 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
255
 00:03.00
9. numbrr
309
 00:03.21
10. Vicell
9
 00:03.30
Robots / programmatic solversinfo  
1.tlstyer
142
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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2026-03-17 05:49:46

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