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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Shakashaka


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

New Puzzle
This Month
1. Daiwie
98
01:07.29
2. home
209
01:17.28
3. marbleeeee 01:29.36
4. CFan058
16
01:39.35
5. Tunnel Keeper
70
01:40.80
6. Kenolo353
121
01:46.78
7. lmsc5k
66
01:54.43
8. sauceguardian
105
01:58.00
9. rinny 02:27.18
10. YoungNam 02:48.81
11. RaiT
105
03:25.68
12. Gorgonseye 03:25.93
13. aequidens
265
03:27.53
14. Hybrid
177
03:34.25
15. AnonyMinor
78
03:34.82
16. Coolcon
90
03:38.81
17. knmidorika
57
03:55.25
18. ethanguo 04:07.10
19. qobi
235
04:07.11
20. FishingPanda 04:18.03
This Week
1. Daiwie
98
01:14.36
2. Tunnel Keeper
70
01:40.80
3. Kenolo353
121
01:54.91
4. sauceguardian
105
01:58.00
5. rinny 02:27.45
6. Gorgonseye 03:37.60
7. knmidorika
57
03:55.25
8. ethanguo 04:07.10
9. qobi
235
04:07.11
10. chenh 04:28.74
11. iamagenius320
1
04:32.58
12. Dorice
266
04:49.58
13. NanogramFreak 05:20.38
14. WYJ
67
05:31.21
15. Ontwikseltsaar
103
05:55.71
16. Tezexlo
66
06:03.16
17. Odenzon
26
06:05.61
18. redcatdragon 07:44.77
19. sqw0tb7zc
14
10:12.34
20. Jiaminzhao
9
14:46.93
Today
1. Kenolo353
121
02:21.72
2. Odenzon
26
06:05.61
3. WYJ
67
06:35.91
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
MO3
1. Douglas Shamlin Jr.
719
01:01.56
2. Daiwie
98
01:10.49
3. home
209
01:20.85
4. Tunnel Keeper
70
01:36.37
5. numbrr
313
01:38.18
6. TashiroMiraki
224
01:40.69
7. 梦逍遥
74
01:42.04
8. lmsc5k
66
01:46.18
9. CFan058
16
01:46.52
10. GreyPotato
46
01:47.45
AO5
1. Douglas Shamlin Jr.
719
01:01.56
2. Daiwie
98
01:11.18
3. home
209
01:24.97
4. Tunnel Keeper
70
01:37.18
5. TashiroMiraki
224
01:43.47
6. 梦逍遥
74
01:44.40
7. numbrr
313
01:48.68
8. CFan058
16
01:49.31
9. GreyPotato
46
01:49.96
10. vowels
216
01:50.31
AO12
1. Douglas Shamlin Jr.
719
01:05.53
2. Daiwie
98
01:12.62
3. home
209
01:29.69
4. Tunnel Keeper
70
01:45.85
5. TashiroMiraki
224
01:48.06
6. 梦逍遥
74
01:49.64
7. CFan058
16
01:53.89
8. numbrr
313
01:54.77
9. GreyPotato
46
01:59.04
10. lmsc5k
66
01:59.71
Robots / programmatic solversinfo  
1.SATBot00:18.151
2.Paul Bismuth
1
00:23.304
3.kanaderu
1
04:55.008

* 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.
You need to be logged in to track your averages

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