Shakashaka


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Special thanks to Aevrin for the translation

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°

Video Tutorial
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Shakashaka


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

New Puzzle
This Month
1. sauceguardian
115
00:09.08
2. rozer
214
00:14.12
3. RaiT
121
00:15.16
4. KarenNotARobot 00:18.13
5. Kenolo353
123
00:19.09
6. Dorice
274
00:24.16
7. jasoneb
72
00:26.81
8. BigHeadGriffin
29
00:31.57
9. unko
25
00:32.50
10. miloš petronijević
64
00:33.98
11. Jazka 00:37.83
12. qobi
242
00:38.39
13. Quo
26
00:41.88
14. ambiorix 00:43.28
15. passngrin 00:46.50
16. kroller
23
00:46.68
17. Alexia :)
134
00:47.43
18. AkiyamaMizuki
5
00:55.62
19. jdubs
158
01:00.08
20. laries
50
01:03.87
This Week
1. RaiT
121
00:15.16
2. KarenNotARobot 00:22.72
3. jasoneb
72
00:29.56
4. miloš petronijević
64
00:33.98
5. BigHeadGriffin
29
00:36.37
6. passngrin 00:46.50
7. AkiyamaMizuki
5
00:55.62
8. Rickieman86 01:22.22
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MO3
1. Douglas Shamlin Jr.
723
00:06.79
2. sauceguardian
115
00:10.13
3. Daiwie
104
00:10.18
4. numbrr
323
00:10.41
5. TashiroMiraki
233
00:11.43
6. vowels
216
00:11.50
7. lmsc5k
68
00:11.97
8. jaybrainer
279
00:12.32
9. home
217
00:12.37
10. Kenolo353
123
00:12.96
AO5
1. Douglas Shamlin Jr.
723
00:07.19
2. sauceguardian
115
00:10.09
3. Daiwie
104
00:10.62
4. numbrr
323
00:12.12
5. TashiroMiraki
233
00:12.15
6. vowels
216
00:12.18
7. home
217
00:12.39
8. lmsc5k
68
00:12.73
9. jaybrainer
279
00:13.11
10. Tunnel Keeper
72
00:13.58
AO12
1. Douglas Shamlin Jr.
723
00:08.09
2. Daiwie
104
00:11.20
3. sauceguardian
115
00:11.26
4. vowels
216
00:12.94
5. numbrr
323
00:13.28
6. TashiroMiraki
233
00:13.69
7. lmsc5k
68
00:14.03
8. jaybrainer
279
00:14.99
9. Kenolo353
123
00:15.52
10. qqwref
266
00:15.59
Robots / programmatic solversinfo  
1.Paul Bismuth
1
00:03.495
2.Tristan703
1
01:14.874
3.hsjbh
1
01:26.414

* 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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