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. gregg__
23
00:42.85
2. MadraMor
134
00:54.82
3. TheSunBro
32
01:00.34
4. homer 01:00.79
5. Dorice
207
01:00.91
6. Tunnel Keeper
19
01:01.79
7. randomflyintaco
55
01:05.77
8. AndreyL 01:14.19
9. qobi
191
01:20.81
10. AlexanderIII 01:30.50
11. Harry_Canyon
96
01:34.00
12. Gyu Hwa Lee
50
01:49.11
13. crema
91
02:11.34
14. Truth-or-Peace
93
02:33.84
15. Solver83 02:44.31
16. Tartempion 02:47.15
17. Rickieman86 02:56.77
18. darthV
21
03:05.93
19. Wuni14 03:35.39
20. gzunzu
41
03:36.30
This Week
1. gregg__
23
00:50.37
2. Dorice
207
01:01.59
3. AndreyL 01:14.19
4. randomflyintaco
55
01:18.58
5. qobi
191
01:33.43
6. AlexanderIII 01:43.87
7. Solver83 02:44.31
8. Rickieman86 02:56.77
9. darthV
21
03:05.93
10. Wuni14 03:35.39
11. gzunzu
41
03:36.30
12. ZJTZLQLJY 04:12.55
13. cjnudger 05:17.19
14. Ilbibi
33
07:55.44
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Today
1. AndreyL 01:14.19
2. AlexanderIII 02:33.19
3. Solver83 02:44.31
4. ZJTZLQLJY 04:12.55
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
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13.--- empty -----:--
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16.--- empty -----:--
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20.--- empty -----:--
MO3
1. Douglas Shamlin Jr.
583
00:18.49
2. TashiroMiraki
194
00:32.76
3. vowels
202
00:34.09
4. lmsc5k
41
00:34.69
5. home
156
00:36.38
6. qqwref
259
00:38.64
7. MEGACHEESE
64
00:38.65
8. numbrr
234
00:42.01
9. NoahR
227
00:43.22
10. jaybrainer
184
00:43.47
AO5
1. Douglas Shamlin Jr.
583
00:19.11
2. TashiroMiraki
194
00:34.01
3. vowels
202
00:34.10
4. lmsc5k
41
00:37.36
5. home
156
00:37.94
6. qqwref
259
00:39.59
7. MEGACHEESE
64
00:39.95
8. numbrr
234
00:41.21
9. 2015YINJ02
140
00:43.70
10. NoahR
227
00:44.84
AO12
1. Douglas Shamlin Jr.
583
00:19.90
2. TashiroMiraki
194
00:35.62
3. vowels
202
00:37.84
4. lmsc5k
41
00:41.77
5. MEGACHEESE
64
00:42.48
6. qqwref
259
00:44.68
7. NoahR
227
00:46.11
8. home
156
00:46.24
9. gregg__
23
00:48.05
10. numbrr
234
00:48.33
Robots / programmatic solversinfo  
1.GrodGruffalo00:57.455
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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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2024-04-27 18:51:25

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