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.anonymous
156
00:16.54
2. Douglas Shamlin Jr.
715
03:04.46
3. Daiwie
94
03:49.91
4. Tunnel Keeper
67
04:52.46
5. tdeck
79
05:10.60
6. home
196
05:20.61
7. TashiroMiraki
217
05:34.59
8. moonjady
350
06:22.66
9. summernight
225
06:35.22
10. sauceguardian
102
06:41.20
AO5
1. Douglas Shamlin Jr.
715
03:07.73
2.anonymous
156
03:24.08
3. Daiwie
94
04:03.81
4. Tunnel Keeper
67
04:57.01
5. tdeck
79
05:11.55
6. home
196
05:28.63
7. TashiroMiraki
217
05:40.26
8. moonjady
350
06:24.31
9. sauceguardian
102
06:43.82
10. Kenolo353
115
06:46.80
AO12
1. Douglas Shamlin Jr.
715
03:15.21
2. Daiwie
94
04:18.09
3. Tunnel Keeper
67
05:10.45
4. home
196
06:02.07
5.anonymous
156
06:14.77
6. TashiroMiraki
217
06:43.97
7. summernight
225
06:57.78
8. moonjady
350
07:10.16
9. Kenolo353
115
07:21.25
10. sauceguardian
102
07:44.53
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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2025-12-17 11:56:44

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