Shakashaka


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Shakashaka (Proof of Quilt) is a logic puzzle with simple rules and challenging solutions.

The rules are simple. Shakashaka is played on a rectangular grid. The grid has both black cells and white cells in it.
The objective is to place black triangles in the white cell in such a way so that they form white rectangular (or square) areas.
- The triangles are right angled and occupy half of the white square divided diagonally.
- You can place triangles only in white cells
- The numbers in the black cells indicate how many triangles are adjacent, vertically and horizontally.
- The white rectangles can be either straight or rotated at 45°

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Shakashaka


5x5 Shakashaka | 10x10 Shakashaka | 15x15 Shakashaka | 20x20 Shakashaka | 25x25 Shakashaka

This Month
1. kimchee
10
01:05.60
2. takver 01:16.44
3. randomflyintaco 01:22.33
4. Dorice
127
01:28.15
5. L.W.
32
01:36.49
6. masterblaster69 01:37.03
7. lanshangfaren
25
01:55.94
8. ifletchr 02:03.44
9. garbage
92
02:23.61
10. ambiorix 02:31.55
11. Jennalynn Morton
55
02:49.01
12. Gyu Hwa Lee
36
03:06.56
13. phufhi 03:10.67
14. Tartempion 03:13.01
15. profTomi 03:47.86
16. dreaded
16
04:33.17
17. Tianyi Yang
5
05:20.13
18. Daniil Kozlov
38
09:11.08
19. brac37 4:04:37.57
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This Week
1. randomflyintaco 01:22.33
2. takver 01:26.48
3. masterblaster69 01:37.03
4. profTomi 04:18.63
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Today
1. takver 01:28.34
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MO3
1. Douglas Shamlin Jr.
393
00:18.49
2. TashiroMiraki
123
00:35.17
3. vowels
137
00:40.73
4. NoahR
173
00:43.22
5.anonymous
212
00:50.11
6. Kenolo353
44
00:51.56
7. kennethaw88
55
00:51.58
8. sfumato
145
00:51.64
9. numbrr
106
00:55.90
10. RunFast
34
00:56.10
AO5
1. Douglas Shamlin Jr.
393
00:19.52
2. TashiroMiraki
123
00:37.30
3. vowels
137
00:41.59
4. NoahR
173
00:44.84
5. kennethaw88
55
00:51.58
6.anonymous
212
00:52.41
7. Kenolo353
44
00:53.04
8. RunFast
34
00:58.47
9. sfumato
145
00:58.78
10. numbrr
106
00:58.80
AO12
1. Douglas Shamlin Jr.
393
00:20.83
2. TashiroMiraki
123
00:41.69
3. vowels
137
00:45.06
4. NoahR
173
00:46.11
5.anonymous
212
00:54.64
6. Kenolo353
44
00:56.21
7. kennethaw88
55
00:56.46
8. sfumato
145
01:02.76
9. qqwref
153
01:02.80
10. numbrr
106
01:05.22
Robots / programmatic solversinfo  
1.GrodGruffalo00:57.455
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* 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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2022-06-29 03:10:46

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