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
96
01:07.61
2. home
200
01:27.06
3. marbleeeee 01:32.65
4. lmsc5k
66
01:34.32
5. Kenolo353
117
01:52.79
6. rinny 02:52.83
7. Irisa
126
03:04.09
8. Dorice
260
03:08.46
9. sauceguardian
104
03:12.72
10. aeunchae
8
03:31.20
11. aequidens
260
03:33.40
12. AnonyMinor
72
03:55.93
13. Avalon 03:57.85
14. Labyrinth35 03:59.91
15. knmidorika
56
04:02.58
16. qobi
234
04:13.30
17. Nazrei
63
04:43.69
18. Tezexlo
64
04:44.09
19. Rhododendron
146
05:11.48
20. BobbyvinJoe
4
05:22.09
This Week
1. Daiwie
96
01:15.42
2. marbleeeee 01:32.65
3. Kenolo353
117
01:59.61
4. Irisa
126
03:04.09
5. aeunchae
8
03:50.56
6. Dorice
260
04:00.43
7. knmidorika
56
04:02.79
8. Nazrei
63
04:43.69
9. Tezexlo
64
04:44.09
10. Rhododendron
146
05:11.48
11. NanogramFreak 05:34.46
12. 白切叉燒鵝
61
06:10.41
13. WYJ
57
13:11.54
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20.--- empty -----:--
Today
1. Tezexlo
64
04:44.09
2. Rhododendron
146
05:11.48
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.
717
01:01.56
2. Daiwie
96
01:10.94
3. home
200
01:32.58
4. Tunnel Keeper
68
01:36.37
5. numbrr
306
01:38.18
6. TashiroMiraki
217
01:40.69
7. 梦逍遥
74
01:42.04
8. lmsc5k
66
01:46.18
9. GreyPotato
46
01:47.45
10. vowels
216
01:50.31
AO5
1. Douglas Shamlin Jr.
717
01:01.56
2. Daiwie
96
01:11.91
3. home
200
01:34.54
4. Tunnel Keeper
68
01:37.18
5. TashiroMiraki
217
01:43.47
6. 梦逍遥
74
01:44.40
7. numbrr
306
01:48.68
8. GreyPotato
46
01:49.96
9. vowels
216
01:50.31
10. lmsc5k
66
01:51.85
AO12
1. Douglas Shamlin Jr.
717
01:05.53
2. Daiwie
96
01:14.39
3. home
200
01:37.66
4. Tunnel Keeper
68
01:45.85
5. TashiroMiraki
217
01:48.06
6. 梦逍遥
74
01:49.64
7. numbrr
306
01:54.77
8. GreyPotato
46
01:59.04
9. lmsc5k
66
01:59.71
10. vowels
216
01:59.93
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.
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2026-02-04 20:32:34

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