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. lmsc5k
27
00:09.56
2. Kenolo353
74
00:17.41
3. Dorice
190
00:22.87
4. qobi
176
00:34.35
5. JUUJUU 00:39.85
6. ambiorix 00:41.16
7. Lizargi 00:50.53
8. meaghan_rebecca
22
00:50.90
9. ahhhhhvvvvvv
36
00:56.71
10. Rauth
5
01:15.16
11. Rhododendron
57
01:23.61
12. Moria 01:35.33
13. Joris Brouwer
18
01:37.09
14. ぺぺろんちい...
45
02:02.75
15. Alimcosej 02:03.47
16. PyroAeroVampire
25
02:26.70
17. KfunkNyoFace
42
02:32.74
18. Korneel 02:34.64
19. Tartempion 02:46.28
20. s4ucetomato
1
02:57.14
This Week
1. Kenolo353
74
00:21.92
2. Dorice
190
00:26.34
3. JUUJUU 00:39.85
4. meaghan_rebecca
22
00:50.90
5. Rhododendron
57
01:23.61
6. Joris Brouwer
18
01:45.66
7. Alimcosej 02:03.47
8. KfunkNyoFace
42
02:32.74
9. Korneel 02:34.64
10. Maxwee
9
02:59.78
11. aluminiferous 03:04.73
12. s4ucetomato
1
03:32.35
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Today
1. Alimcosej 02:03.47
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MO3
1. Douglas Shamlin Jr.
524
00:06.79
2. vowels
200
00:11.50
3. TashiroMiraki
172
00:13.47
4. sfumato
164
00:13.88
4. MEGACHEESE
62
00:13.88
6. qqwref
258
00:14.03
7. numbrr
200
00:14.10
8. lmsc5k
27
00:14.79
9. 2015YINJ02
139
00:14.86
10. home
147
00:14.94
AO5
1. Douglas Shamlin Jr.
524
00:07.19
2. vowels
200
00:12.18
3. TashiroMiraki
172
00:13.82
4. qqwref
258
00:14.27
5. numbrr
200
00:15.21
6. MEGACHEESE
62
00:15.45
7. home
147
00:15.81
8. 2015YINJ02
139
00:16.01
9. Siempie
98
00:16.02
10. lmsc5k
27
00:16.03
AO12
1. Douglas Shamlin Jr.
524
00:08.09
2. vowels
200
00:12.94
3. qqwref
258
00:15.59
4. TashiroMiraki
172
00:16.32
5. NoahR
221
00:17.23
6. lmsc5k
27
00:17.28
7. Siempie
98
00:17.51
8. MEGACHEESE
62
00:17.66
9. numbrr
200
00:17.87
10. 2015YINJ02
139
00:18.02
Robots / programmatic solversinfo  
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* 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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2023-12-03 21:13:35

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