# 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°

Video Tutorial
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This Month
1. lmsc5k
27
00:34.46
2. Kenolo353
74
00:43.49
3. Mordoklejka 00:43.94
4. sebby64
19
00:52.59
5. Dorice
190
00:59.88
6. qobi
176
01:11.48
7. arcer
98
01:24.63
8. meaghan_rebecca
22
01:45.15
9. ambiorix 01:55.83
10. 草莓熊
20
02:01.43
11. epicuro 02:02.69
12. Lizargi 02:12.13
13. dull.ennui
17
02:41.20
71
03:25.03
15. stefanwg
79
03:38.65
16. 윤슬
6
03:44.66
17. Rhododendron
57
04:07.42
18. Joris Brouwer
18
04:28.60
19. Tartempion 04:45.39
20. drbop
30
06:01.77
This Week
1. lmsc5k
27
00:35.38
2. Kenolo353
74
00:47.73
3. Dorice
190
01:17.77
4. arcer
98
01:24.63
5. meaghan_rebecca
22
01:56.31
6. epicuro 02:02.69
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Today
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MO3
1. Douglas Shamlin Jr.
524
00:18.49
2. vowels
200
00:34.09
3. TashiroMiraki
172
00:35.17
4. home
147
00:36.38
5. lmsc5k
27
00:38.14
6. qqwref
258
00:38.64
7. MEGACHEESE
62
00:38.65
8. NoahR
221
00:43.22
9. 2015YINJ02
139
00:45.96
10. numbrr
200
00:46.95
AO5
1. Douglas Shamlin Jr.
524
00:19.11
2. vowels
200
00:34.10
3. TashiroMiraki
172
00:37.30
4. home
147
00:37.94
5. qqwref
258
00:39.59
6. lmsc5k
27
00:39.87
7. MEGACHEESE
62
00:39.95
8. 2015YINJ02
139
00:43.70
9. NoahR
221
00:44.84
10. numbrr
200
00:46.26
AO12
1. Douglas Shamlin Jr.
524
00:19.90
2. vowels
200
00:37.84
3. TashiroMiraki
172
00:40.68
4. MEGACHEESE
62
00:42.48
5. lmsc5k
27
00:43.63
6. qqwref
258
00:44.68
7. NoahR
221
00:46.11
8. home
147
00:46.24
9. 2015YINJ02
139
00:50.37
10. numbrr
200
00:52.43
Robots / programmatic solversinfo
1.GrodGruffalo00:57.455
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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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