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
79
01:11.94
2. Tunnel Keeper
61
01:39.62
3. lmsc5k
61
01:44.40
4. home
176
01:46.68
5. Goomy
91
02:11.43
6. 风间呓语
77
02:26.81
7. GoldChoco36
130
02:30.16
8. Kenolo353
88
02:37.59
9. rayzhang770 02:41.81
10. Dorice
235
03:04.44
11. LesAM 03:10.67
12. aequidens
238
03:19.39
13. heystonegalaxy
68
03:21.71
14. randomflyintaco
101
03:29.45
15. qobi
219
03:37.29
16. AgnieszkaNesa
84
03:40.57
17. Board
72
04:25.07
18. sixgs 04:40.95
19. rambo00
30
04:53.22
20. TheET 05:42.00
This Week
1. Daiwie
79
01:14.23
2. lmsc5k
61
01:49.75
3. GoldChoco36
130
02:30.16
4. 风间呓语
77
02:47.84
5. Kenolo353
88
03:12.74
6. heystonegalaxy
68
03:21.71
7. randomflyintaco
101
03:44.75
8. qobi
219
03:48.95
9. AgnieszkaNesa
84
04:06.38
10. rambo00
30
04:53.22
11. Frog The Toast
52
06:46.31
12. jdubs
132
10:40.09
13. CLAVDIVS
47
11:05.66
14. MelK12 14:58.27
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. GoldChoco36
130
02:30.16
2. Kenolo353
88
03:12.74
3. randomflyintaco
101
04:16.18
4. heystonegalaxy
68
06:58.39
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.
678
01:01.56
2. Daiwie
79
01:16.89
3. home
176
01:35.44
4. Tunnel Keeper
61
01:36.37
5. numbrr
285
01:38.18
6. TashiroMiraki
214
01:40.69
7. GreyPotato
46
01:47.45
8. vowels
214
01:50.31
9. lmsc5k
61
01:50.90
10. 梦逍遥
63
01:57.33
AO5
1. Douglas Shamlin Jr.
678
01:01.56
2. Daiwie
79
01:18.66
3. Tunnel Keeper
61
01:37.18
4. home
176
01:38.22
5. TashiroMiraki
214
01:43.47
6. numbrr
285
01:48.68
7. GreyPotato
46
01:49.96
8. vowels
214
01:50.31
9. lmsc5k
61
01:55.14
10. 梦逍遥
63
01:57.70
AO12
1. Douglas Shamlin Jr.
678
01:05.53
2. Daiwie
79
01:22.49
3. home
176
01:42.74
4. Tunnel Keeper
61
01:45.85
5. TashiroMiraki
214
01:48.06
6. numbrr
285
01:54.77
7. GreyPotato
46
01:59.04
8. vowels
214
01:59.93
9. lmsc5k
61
02:00.44
10. 梦逍遥
63
02:02.21
Robots / programmatic solversinfo  
1.kanaderu
1
04:55.008
2.Kx1WillTill2:29:56.870
3.--- empty -----:--

* 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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2025-03-26 14:21:05

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