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°

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Shakashaka


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

This Month
1. Daiwie
85
01:07.66
2. Tunnel Keeper
62
01:33.27
3. lmsc5k
63
01:38.33
4. sauceguardian
97
02:03.46
5. 梦逍遥
67
02:07.34
6. Kenolo353
98
02:17.38
7. wangzimoxx
15
02:37.23
8. YoungNam 02:53.51
9. trj1111
13
02:57.64
10. geyik
183
03:13.58
11. rambo00
32
03:13.70
12. randomflyintaco
106
03:14.34
13. HerrNoix 03:19.19
14. xzaxzaazx
95
03:21.94
15. TQ-V85Sn
85
03:23.64
16. Coolcon
89
03:31.28
17. aequidens
244
03:33.20
18. AgnieszkaNesa
94
03:42.58
19. heystonegalaxy
76
03:50.88
20. afidaleo
126
03:56.79
This Week
1. Daiwie
85
01:15.02
2. sauceguardian
97
02:03.46
3. Kenolo353
98
02:26.99
4. trj1111
13
02:57.64
5. randomflyintaco
106
03:16.34
6. xzaxzaazx
95
03:21.94
7. Coolcon
89
03:31.28
8. AgnieszkaNesa
94
03:42.58
9. heystonegalaxy
76
05:10.37
10. Frog The Toast
58
05:26.80
11. ZJTZLQLJY 05:29.34
12. NanogramFreak 05:37.24
13. ihaveit 05:44.25
14. chenh 06:31.90
15. bedlion 08:32.40
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. Frog The Toast
58
05:26.80
2. bedlion 08:32.40
3. heystonegalaxy
76
1d 21:47:54.21
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.
691
01:01.56
2. Daiwie
85
01:15.55
3. home
186
01:35.44
4. Tunnel Keeper
62
01:36.37
5. numbrr
295
01:38.18
6. TashiroMiraki
215
01:40.69
7. 梦逍遥
67
01:44.39
8. GreyPotato
46
01:47.45
9. lmsc5k
63
01:48.77
10. vowels
214
01:50.31
AO5
1. Douglas Shamlin Jr.
691
01:01.56
2. Daiwie
85
01:15.59
3. Tunnel Keeper
62
01:37.18
4. home
186
01:38.22
5. TashiroMiraki
215
01:43.47
6. 梦逍遥
67
01:46.59
7. numbrr
295
01:48.68
8. GreyPotato
46
01:49.96
9. vowels
214
01:50.31
10. lmsc5k
63
01:52.55
AO12
1. Douglas Shamlin Jr.
691
01:05.53
2. Daiwie
85
01:18.98
3. home
186
01:42.74
4. Tunnel Keeper
62
01:45.85
5. TashiroMiraki
215
01:48.06
6. 梦逍遥
67
01:52.71
7. numbrr
295
01:54.77
8. GreyPotato
46
01:59.04
9. vowels
214
01:59.93
10. lmsc5k
63
02:00.44
Robots / programmatic solversinfo  
1.SATBot00:18.151
2.kanaderu
1
04:55.008
3.Kx1WillTill2:29:56.870

* 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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2025-06-15 12:11:22

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