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
101
01:10.11
2. marbleeeee 01:28.24
3. Tunnel Keeper
70
01:33.94
4. lmsc5k
67
01:52.91
5. Kenolo353
123
02:01.35
6. YoungNam 02:15.08
7. rinny 02:17.83
8. aequidens
267
03:02.54
9. Coolcon
91
03:02.66
10. AnonyMinor
81
03:17.33
11. SLinkTechInc 03:20.63
12. WYJ
76
03:26.40
13. Gorgonseye 03:28.50
14. FishingPanda 03:47.72
15. qobi
237
04:00.34
16. Lin Wanxin
77
04:18.19
17. shiningyang
9
04:26.31
18. NanogramFreak 04:32.11
19. Tezexlo
68
04:35.03
20. Adam Jones
42
04:47.06
This Week
1. Daiwie
101
01:10.11
2. Kenolo353
123
02:01.35
3. YoungNam 02:15.08
4. aequidens
267
03:02.54
5. Coolcon
91
03:04.63
6. SLinkTechInc 03:20.63
7. WYJ
76
03:26.40
8. FishingPanda 03:49.87
9. Gorgonseye 03:53.15
10. shiningyang
9
04:26.31
11. Tezexlo
68
04:35.03
12. Adam Jones
42
04:47.06
13. issal 05:30.75
14. super2276 06:35.28
15. Ontwikseltsaar
103
06:39.99
16. Frog The Toast
90
06:47.58
17. redcatdragon 08:18.80
18. e74yp8
10
09:34.91
19. MisterBarbarian 15:07.98
20. yosiaki
108
18:39.12
Today
1. Daiwie
101
01:10.11
2. aequidens
267
03:02.54
3. Coolcon
91
03:04.63
4. FishingPanda 03:54.17
5. shiningyang
9
04:26.31
6. Adam Jones
42
04:47.06
7. super2276 06:35.28
8. Ontwikseltsaar
103
06:53.74
9. MisterBarbarian 15:07.98
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.
720
01:01.56
2. Daiwie
101
01:10.49
3. home
213
01:20.01
4. Tunnel Keeper
70
01:36.37
5. numbrr
319
01:38.18
6. TashiroMiraki
226
01:40.69
7. 梦逍遥
74
01:42.04
8. lmsc5k
67
01:46.18
9. CFan058
24
01:46.52
10. GreyPotato
46
01:47.45
AO5
1. Douglas Shamlin Jr.
720
01:01.56
2. Daiwie
101
01:11.18
3. home
213
01:21.65
4. Tunnel Keeper
70
01:37.18
5. TashiroMiraki
226
01:43.47
6. 梦逍遥
74
01:44.40
7. numbrr
319
01:48.68
8. CFan058
24
01:49.31
9. GreyPotato
46
01:49.96
10. vowels
216
01:50.31
AO12
1. Douglas Shamlin Jr.
720
01:05.53
2. Daiwie
101
01:12.62
3. home
213
01:26.41
4. Tunnel Keeper
70
01:45.85
5. TashiroMiraki
226
01:48.06
6. 梦逍遥
74
01:49.64
7. CFan058
24
01:53.89
8. numbrr
319
01:54.77
9. GreyPotato
46
01:59.04
10. lmsc5k
67
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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