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. lmsc5k
63
01:41.87
3. Tunnel Keeper
63
01:47.37
4. sauceguardian
97
01:59.83
5. 梦逍遥
68
02:07.34
6. Kenolo353
100
02:18.12
7. geono
93
02:18.27
8. wangzimoxx
15
02:37.23
9. YoungNam 02:53.51
10. trj1111
22
02:57.64
11. Leeminseok
13
03:12.76
12. geyik
183
03:13.58
13. randomflyintaco
107
03:16.34
14. HerrNoix 03:19.19
15. Coolcon
89
03:19.30
16. xzaxzaazx
95
03:21.94
17. aequidens
246
03:33.20
18. AgnieszkaNesa
96
03:42.58
19. heystonegalaxy
77
03:51.15
20. ゆに
57
04:01.25
This Week
1. Daiwie
85
01:13.24
2. Kenolo353
100
02:18.12
3. Leeminseok
13
03:12.76
4. aequidens
246
03:37.47
5. randomflyintaco
107
03:48.01
6. heystonegalaxy
77
04:10.79
7. Frog The Toast
58
04:46.95
8. Chaojie Fu
64
05:33.43
9. ZJTZLQLJY 05:37.91
10. Tezexlo
58
05:47.17
11. Moxx
43
06:02.90
12. Harry_Canyon
126
06:03.18
13. super2276 07:16.49
14. Astral
21
08:43.83
15. gorilla801 12:03.36
16. drbop
40
2:39:45.73
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. Daiwie
85
01:13.24
2. Kenolo353
100
02:18.12
3. randomflyintaco
107
03:48.01
4. Frog The Toast
58
04:55.99
5. Moxx
43
06:59.98
6. Tezexlo
58
08:17.39
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.
692
01:01.56
2. Daiwie
85
01:15.55
3. home
187
01:35.44
4. Tunnel Keeper
63
01:36.37
5. numbrr
297
01:38.18
6. TashiroMiraki
215
01:40.69
7. 梦逍遥
68
01:44.39
8. GreyPotato
46
01:47.45
9. lmsc5k
63
01:48.77
10. vowels
216
01:50.31
AO5
1. Douglas Shamlin Jr.
692
01:01.56
2. Daiwie
85
01:15.59
3. Tunnel Keeper
63
01:37.18
4. home
187
01:38.22
5. TashiroMiraki
215
01:43.47
6. 梦逍遥
68
01:46.59
7. numbrr
297
01:48.68
8. GreyPotato
46
01:49.96
9. vowels
216
01:50.31
10. lmsc5k
63
01:52.55
AO12
1. Douglas Shamlin Jr.
692
01:05.53
2. Daiwie
85
01:18.98
3. home
187
01:42.74
4. Tunnel Keeper
63
01:45.85
5. TashiroMiraki
215
01:48.06
6. 梦逍遥
68
01:52.71
7. numbrr
297
01:54.77
8. GreyPotato
46
01:59.04
9. vowels
216
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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2025-06-30 23:29:21

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