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. TashiroMiraki
123
01:58.08
2. home
86
02:23.08
3. frogs
69
02:45.87
4. xiaoman 02:46.08
5. kennethaw88
55
02:55.64
6. kimchee
10
03:34.73
7. takver 04:38.65
8. NinjaFury68
91
05:31.50
9. NanogramFreak 06:56.73
10. phufhi 08:39.33
11. AndersL
22
10:04.04
12. Nmiss 11:21.69
13. dzunglee
23
13:40.59
14. profTomi 14:09.41
15. Nanli 15:11.11
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This Week
1. xiaoman 03:27.96
2. kimchee
10
03:34.73
3. phufhi 08:39.33
4. profTomi 16:30.76
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Today
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MO3
1. Douglas Shamlin Jr.
393
01:01.56
2. TashiroMiraki
123
02:04.53
3. NoahR
173
02:20.59
4. vowels
137
02:21.81
5.anonymous
212
02:25.03
6. home
86
02:28.89
7. Kenolo353
44
02:36.42
8. kennethaw88
55
02:39.67
9. froz3n_
45
02:45.67
10. Bluegill16384
79
02:52.17
AO5
1. Douglas Shamlin Jr.
393
01:01.56
2. TashiroMiraki
123
02:06.70
3. NoahR
173
02:21.32
4. home
86
02:26.44
5.anonymous
212
02:27.68
6. vowels
137
02:29.20
7. Kenolo353
44
02:43.04
8. kennethaw88
55
02:48.67
9. froz3n_
45
02:50.00
10. Bluegill16384
79
02:55.08
AO12
1. Douglas Shamlin Jr.
393
01:05.53
2. TashiroMiraki
123
02:21.09
3. NoahR
173
02:26.96
4. home
86
02:32.79
5.anonymous
212
02:34.29
6. vowels
137
02:38.74
7. Kenolo353
44
02:50.73
8. kennethaw88
55
02:57.33
9. froz3n_
45
02:58.89
10. Bluegill16384
79
03:10.19
Robots / programmatic solversinfo  
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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 03:24:39

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