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
01:14.21
2. Kenolo353
74
01:25.72
3. Dorice
190
02:04.01
4. randomflyintaco
17
02:14.25
5. homer 02:38.14
6. AzuReVaPouR 02:43.85
7. Lizargi 04:05.44
8. oshi
16
04:19.99
9. kugel
47
04:37.13
10. epicuro 05:15.15
11. Michelins
60
06:14.33
12. Moria 06:49.37
13. ぺぺろんちい...
45
09:49.59
14. Duric 14:46.68
15. drbop
30
2:46:00.52
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This Week
1. lmsc5k
27
01:19.32
2. Kenolo353
74
01:39.17
3. Dorice
190
02:11.65
4. epicuro 05:15.15
5. Duric 14:46.68
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Today
1. lmsc5k
27
01:25.96
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MO3
1. Douglas Shamlin Jr.
524
00:36.51
2. vowels
200
01:00.51
3. home
147
01:08.43
4. TashiroMiraki
172
01:09.53
5. qqwref
258
01:12.68
6. MEGACHEESE
62
01:17.70
7. 2015YINJ02
139
01:23.44
8. lmsc5k
27
01:23.50
9. NoahR
221
01:26.17
10. Kenolo353
74
01:30.91
AO5
1. Douglas Shamlin Jr.
524
00:38.16
2. vowels
200
01:05.16
3. home
147
01:08.43
4. qqwref
258
01:14.12
5. TashiroMiraki
172
01:15.95
6. MEGACHEESE
62
01:22.66
7. lmsc5k
27
01:25.31
8. NoahR
221
01:27.05
9. 2015YINJ02
139
01:28.86
10. Make
220
01:33.58
AO12
1. Douglas Shamlin Jr.
524
00:39.23
2. vowels
200
01:08.91
3. TashiroMiraki
172
01:18.29
4. home
147
01:21.63
5. qqwref
258
01:22.02
6. MEGACHEESE
62
01:25.85
7. lmsc5k
27
01:31.02
8. NoahR
221
01:33.52
9. 2015YINJ02
139
01:36.90
10. Kenolo353
74
01:42.07
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 21:26:09

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