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. Kenolo353
117
00:10.34
2. lmsc5k
66
00:10.87
3. sauceguardian
103
00:11.35
4. 飞飞
52
00:15.23
5. Irisa
125
00:20.02
6. KarenNotARobot 00:21.02
7. qobi
234
00:25.95
8. kroller
18
00:29.74
9. MushroomsCavern
46
00:31.80
10. AlexanderIII 00:31.91
11. Rhododendron
145
00:32.09
12. knmidorika
56
00:38.50
13. kornelbut
41
00:38.96
14. gorilla801
1
00:42.32
15. ambiorix 00:43.90
16. CLAVDIVS
71
00:45.28
17. Canon
19
00:53.15
18. LordHedgie 00:54.11
19. zq
27
00:54.40
20. FunAcroFly
119
00:54.53
This Week
1. Kenolo353
117
00:10.34
2. sauceguardian
103
00:11.35
3. KarenNotARobot 00:21.37
4. qobi
234
00:25.95
5. AlexanderIII 00:31.91
6. Rhododendron
145
00:32.09
7. gorilla801
1
00:50.34
8. Canon
19
00:53.15
9. CLAVDIVS
71
00:53.91
10. ambiorix 00:54.01
11. MaraSov
16
01:01.83
12. daspore 01:12.02
13. RosemaryW 01:13.50
14. FunAcroFly
119
01:50.27
15. valentijn0904 03:05.65
16. WYJ
57
04:40.18
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. Kenolo353
117
00:10.34
2. sauceguardian
103
00:12.99
3. KarenNotARobot 00:23.70
4. AlexanderIII 00:36.61
5. CLAVDIVS
71
01:00.30
6. MaraSov
16
01:01.83
7. WYJ
57
04:40.18
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
00:06.79
2. Daiwie
95
00:10.18
3. numbrr
306
00:10.41
4. sauceguardian
103
00:11.32
5. TashiroMiraki
217
00:11.43
6. vowels
216
00:11.50
7. lmsc5k
66
00:12.39
8. Kenolo353
117
00:12.96
9. Tunnel Keeper
68
00:13.19
10. jaybrainer
249
00:13.22
AO5
1. Douglas Shamlin Jr.
717
00:07.19
2. Daiwie
95
00:10.62
3. numbrr
306
00:12.12
4. TashiroMiraki
217
00:12.15
5. vowels
216
00:12.18
6. sauceguardian
103
00:12.24
7. lmsc5k
66
00:12.73
8. jaybrainer
249
00:13.55
9. Tunnel Keeper
68
00:13.58
10. Kenolo353
117
00:14.02
AO12
1. Douglas Shamlin Jr.
717
00:08.09
2. Daiwie
95
00:11.20
3. vowels
216
00:12.94
4. numbrr
306
00:13.28
5. sauceguardian
103
00:13.63
6. TashiroMiraki
217
00:13.69
7. lmsc5k
66
00:14.06
8. qqwref
266
00:15.59
9. Kenolo353
117
00:15.82
10. Tunnel Keeper
68
00:16.78
Robots / programmatic solversinfo  
1.Paul Bismuth
1
00:03.495
2.hsjbh
1
01:26.414
3.Chen Enxiu
1
02:28.288

* 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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2026-01-31 20:56:12

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