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
01:09.58
2. home
203
01:19.83
3. marbleeeee 01:32.65
4. lmsc5k
66
01:44.15
5. Kenolo353
118
01:52.79
6. sauceguardian
104
02:12.16
7. Irisa
134
02:39.65
8. LesAM 02:51.44
9. rinny 02:55.48
10. Nazrei
69
03:16.84
11. Dorice
262
03:20.51
12. AnonyMinor
74
03:21.89
13. Avalon 03:22.54
14. aeunchae
8
03:23.88
15. knmidorika
57
03:29.64
16. qobi
234
03:41.87
17. May John
96
04:29.63
18. Tezexlo
64
04:41.66
19. Rhododendron
149
05:11.48
20. NanogramFreak 05:29.27
This Week
1. Daiwie
96
01:11.49
2. home
203
01:19.83
3. marbleeeee 01:39.82
4. Kenolo353
118
01:55.22
5. Dorice
262
03:20.51
6. AnonyMinor
74
03:21.89
7. knmidorika
57
03:29.64
8. Avalon 03:32.83
9. Nazrei
69
04:24.57
10. Tezexlo
64
04:41.66
11. NanogramFreak 05:29.27
12. WYJ
58
07:36.92
13. Truth-or-Peace
132
14:55.02
14. hurang
42
18:53.86
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. Kenolo353
118
02:04.95
2. AnonyMinor
74
03:21.89
3. Nazrei
69
04:24.57
4. WYJ
58
09:37.25
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
203
01:26.19
4. Tunnel Keeper
69
01:36.37
5. numbrr
308
01:38.18
6. TashiroMiraki
219
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
203
01:27.99
4. Tunnel Keeper
69
01:37.18
5. TashiroMiraki
219
01:43.47
6. 梦逍遥
74
01:44.40
7. numbrr
308
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
203
01:31.70
4. Tunnel Keeper
69
01:45.85
5. TashiroMiraki
219
01:48.06
6. 梦逍遥
74
01:49.64
7. numbrr
308
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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2026-02-25 21:33:56

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