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
92
01:10.76
2. Tunnel Keeper
66
01:47.92
3. lmsc5k
65
01:52.25
4. Kenolo353
114
02:01.60
5. 3328037
60
02:26.15
6. marbleeeee 02:26.57
7. YoungNam 02:51.94
8. Wangxuye 03:03.78
9. randomflyintaco
132
03:10.88
10. df
18
03:25.63
11. Dorice
253
03:27.90
12. qobi
232
03:33.73
13. aequidens
257
03:36.05
14. insanebrain 03:37.47
15. Hashibrown 03:49.76
16. Kuzuyu 03:53.37
17. Tezexlo
63
04:13.67
18. AnonyMinor
64
04:18.27
19. 喵緹
36
04:29.18
20. Avalon 04:29.36
This Week
1. Daiwie
92
01:10.76
2. Tunnel Keeper
66
01:47.92
3. Kenolo353
114
02:09.38
4. 3328037
60
02:26.15
5. marbleeeee 02:50.97
6. YoungNam 02:52.89
7. randomflyintaco
132
03:10.88
8. df
18
03:25.63
9. qobi
232
03:33.73
10. insanebrain 03:52.94
11. Kuzuyu 03:53.37
12. aequidens
257
03:57.18
13. Dorice
253
04:20.68
14. Tezexlo
63
04:31.67
15. AnonyMinor
64
04:43.38
16. Chaojie Fu
70
04:50.86
17. super2276 06:30.73
18. knmidorika
52
06:56.33
19. aaaaaa22222 06:59.38
20. gorilla801 08:42.33
Today
1. 3328037
60
02:26.15
2.--- empty -----:--
3.--- empty -----:--
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.
714
01:01.56
2. Daiwie
92
01:12.75
3. home
192
01:35.44
4. Tunnel Keeper
66
01:36.37
5. numbrr
301
01:38.18
6. TashiroMiraki
217
01:40.69
7. 梦逍遥
70
01:44.39
8. GreyPotato
46
01:47.45
9. lmsc5k
65
01:48.77
10. vowels
216
01:50.31
AO5
1. Douglas Shamlin Jr.
714
01:01.56
2. Daiwie
92
01:11.95
3. Tunnel Keeper
66
01:37.18
4. home
192
01:37.45
5. TashiroMiraki
217
01:43.47
6. 梦逍遥
70
01:46.59
7. numbrr
301
01:48.68
8. GreyPotato
46
01:49.96
9. vowels
216
01:50.31
10. lmsc5k
65
01:52.55
AO12
1. Douglas Shamlin Jr.
714
01:05.53
2. Daiwie
92
01:18.98
3. home
192
01:42.18
4. Tunnel Keeper
66
01:45.85
5. TashiroMiraki
217
01:48.06
6. 梦逍遥
70
01:52.71
7. numbrr
301
01:54.77
8. GreyPotato
46
01:59.04
9. vowels
216
01:59.93
10. lmsc5k
65
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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2025-11-16 04:52:00

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