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. home
208
00:25.35
2. numbrr
312
00:25.69
3. sauceguardian
105
00:29.21
4. Kenolo353
121
00:30.53
5. ypw19
91
00:33.33
6. gregg__
87
00:39.83
7. 3328037
72
00:41.86
8. AnonyMinor
78
01:00.31
9. Jbrunt
142
01:03.52
10. Savia
77
01:07.65
11. qobi
235
01:14.10
12. Dorice
266
01:17.30
13. HerrNoix 01:22.48
14. GildedQuartz
10
01:24.72
15. burgie12 01:26.51
16. Odenzon
24
01:43.77
17. ambiorix 01:50.40
18. sebby64
20
01:51.71
19. gorilla801
1
01:52.94
20. Iwara
5
02:23.56
This Week
1. numbrr
312
00:25.69
2. Kenolo353
121
00:37.42
3. sauceguardian
105
00:40.76
4. AnonyMinor
78
01:00.31
5. qobi
235
01:14.10
6. GildedQuartz
10
01:24.72
7. Odenzon
24
01:43.77
8. gorilla801
1
02:10.89
9. CLAVDIVS
74
02:44.40
10. laries
40
03:22.44
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Today
1. Odenzon
24
02:26.38
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MO3
1. Douglas Shamlin Jr.
719
00:18.49
2. Daiwie
98
00:26.99
3. home
208
00:27.71
4. numbrr
312
00:30.39
5. sauceguardian
105
00:31.88
6. lmsc5k
66
00:32.03
7. TashiroMiraki
223
00:32.76
8. vowels
216
00:34.09
9. gregg__
87
00:35.04
10. Kenolo353
121
00:36.50
AO5
1. Douglas Shamlin Jr.
719
00:19.11
2. Daiwie
98
00:28.02
3. home
208
00:28.18
4. numbrr
312
00:32.15
5. sauceguardian
105
00:33.89
6. TashiroMiraki
223
00:34.01
7. vowels
216
00:34.10
8. lmsc5k
66
00:34.60
9. Kenolo353
121
00:36.84
10. gregg__
87
00:38.08
AO12
1. Douglas Shamlin Jr.
719
00:19.90
2. Daiwie
98
00:29.65
3. home
208
00:30.26
4. TashiroMiraki
223
00:35.62
5. numbrr
312
00:36.15
6. sauceguardian
105
00:36.24
7. lmsc5k
66
00:37.66
8. vowels
216
00:37.84
9. Kenolo353
121
00:39.49
10. Tunnel Keeper
70
00:41.99
Robots / programmatic solversinfo  
1.Paul Bismuth
1
00:08.116
2.GrodGruffalo00:57.455
3.lucaskao03:28.523

* 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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