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
95
01:07.61
2. home
199
01:30.68
3. 梦逍遥
74
01:31.70
4. lmsc5k
66
01:34.32
5. marbleeeee 01:39.64
6. Kenolo353
116
01:59.59
7. rinny 02:56.54
8. Dorice
259
03:08.46
9. sauceguardian
103
03:12.72
10. Irisa
119
03:22.86
11. aeunchae
8
03:31.20
12. qobi
233
03:41.30
13. randomflyintaco
138
03:41.46
14. knmidorika
55
03:45.85
15. AnonyMinor
70
03:55.93
16. Avalon 03:57.85
17. Labyrinth35 03:59.91
18. Shavo John
52
04:26.30
19. chenh 04:30.90
20. BobbyvinJoe
4
05:22.09
This Week
1. Daiwie
95
01:07.61
2. home
199
01:30.68
3. lmsc5k
66
01:34.32
4. marbleeeee 01:39.64
5. Kenolo353
116
02:12.24
6. rinny 02:56.54
7. sauceguardian
103
03:12.72
8. Irisa
119
03:22.86
9. aeunchae
8
03:31.20
10. Dorice
259
03:34.10
11. AnonyMinor
70
03:55.93
12. Avalon 03:57.85
13. knmidorika
55
04:02.58
14. BobbyvinJoe
4
05:22.09
15. Tezexlo
64
05:40.37
16. Jazka 05:48.97
17. Harry_Canyon
135
07:28.49
18. DdBbon 19:36.53
19.--- empty -----:--
20.--- empty -----:--
Today
1. marbleeeee 01:52.84
2. knmidorika
55
04:11.80
3. Jazka 05:48.97
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.
716
01:01.56
2. Daiwie
95
01:10.94
3. home
199
01:32.58
4. Tunnel Keeper
67
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.
716
01:01.56
2. Daiwie
95
01:11.91
3. home
199
01:34.54
4. Tunnel Keeper
67
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.
716
01:05.53
2. Daiwie
95
01:14.39
3. home
199
01:37.66
4. Tunnel Keeper
67
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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2026-01-21 11:55:13

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