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
01:07.72
2. 梦逍遥
73
01:31.70
3. marbleeeee 01:51.18
4. lmsc5k
65
01:55.96
5. Kenolo353
116
01:59.59
6. 3328037
63
02:35.65
7. rinny 02:57.89
8. Dorice
257
03:20.17
9. Kuzuyu 03:33.23
10. qobi
233
03:41.30
11. randomflyintaco
137
03:41.46
12. aequidens
259
03:43.57
13. AnonyMinor
68
03:45.74
14. knmidorika
55
03:45.85
15. aeunchae
8
04:12.75
16. chenh 04:21.13
17. Shavo John
52
04:26.30
18. Labyrinth35 04:36.19
19. Tezexlo
63
04:47.02
20. Irisa
111
04:48.91
This Week
1. Daiwie
95
01:15.26
2. marbleeeee 01:54.48
3. lmsc5k
65
01:55.96
4. Kenolo353
116
02:08.26
5. rinny 02:57.89
6. qobi
233
03:41.30
7. knmidorika
55
03:45.85
8. Dorice
257
04:03.64
9. aeunchae
8
04:12.75
10. Labyrinth35 04:36.19
11. Irisa
111
04:48.91
12. hyper2234 07:15.19
13.--- empty -----:--
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Today
1. Kenolo353
116
02:08.26
2. Dorice
257
04:03.64
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.
716
01:01.56
2. Daiwie
95
01:11.10
3. home
197
01:35.44
4. Tunnel Keeper
67
01:36.37
5. numbrr
305
01:38.18
6. TashiroMiraki
217
01:40.69
7. 梦逍遥
73
01:42.04
8. GreyPotato
46
01:47.45
9. lmsc5k
65
01:48.77
10. vowels
216
01:50.31
AO5
1. Douglas Shamlin Jr.
716
01:01.56
2. Daiwie
95
01:11.91
3. Tunnel Keeper
67
01:37.18
4. home
197
01:37.45
5. TashiroMiraki
217
01:43.47
6. 梦逍遥
73
01:44.40
7. numbrr
305
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.
716
01:05.53
2. Daiwie
95
01:16.27
3. home
197
01:42.18
4. Tunnel Keeper
67
01:45.85
5. TashiroMiraki
217
01:48.06
6. 梦逍遥
73
01:49.64
7. numbrr
305
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.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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2026-01-07 10:55:23

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