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
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MO3
1. Douglas Shamlin Jr.
693
01:35.95
2.anonymous
132
01:47.84
3. Daiwie
86
01:58.51
4. Tunnel Keeper
63
02:37.47
5. home
188
02:41.39
6. TashiroMiraki
215
02:45.09
7. summernight
211
03:05.56
8. moonjady
344
03:07.39
9. sauceguardian
97
03:16.00
10. tdeck
78
03:29.10
AO5
1. Douglas Shamlin Jr.
693
01:36.63
2.anonymous
132
01:48.53
3. Daiwie
86
02:02.65
4. Tunnel Keeper
63
02:42.02
5. home
188
02:44.55
6. TashiroMiraki
215
02:53.64
7. summernight
211
03:08.11
8. moonjady
344
03:20.72
9. sauceguardian
97
03:24.62
10. Kenolo353
102
03:29.15
AO12
1. Douglas Shamlin Jr.
693
01:41.47
2. Daiwie
86
02:11.84
3. Tunnel Keeper
63
02:49.46
4. home
188
02:53.67
5. TashiroMiraki
215
02:59.35
6. summernight
211
03:15.40
7. moonjady
344
03:31.50
8. sauceguardian
97
03:33.18
9. Kenolo353
102
03:43.94
10.anonymous
132
04:04.60
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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2025-07-12 06:41:40

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