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
41
00:13.13
2. qobi
187
00:20.77
3. hkjsf
96
00:21.04
4. AlexanderIII 00:29.64
5. randomflyintaco
43
00:33.03
6. Dorice
201
00:33.71
7. Oryn
136
00:46.18
8. Koakuma
39
00:47.28
9. ambiorix 00:56.65
10. Korneel 01:03.64
11. Teikn Smith
1
01:06.34
12. Simon919
23
01:14.69
13. c-#8824
51
01:35.35
14. Kuzuyu 01:36.77
15. Flo Folding
8
01:37.48
16. 雷仙
28
01:59.37
17. PyroAeroVampire
55
02:03.51
18. 호로로록이
11
02:56.44
19. Skemmer 02:59.85
20. cjnudger 03:09.25
This Week
1. lmsc5k
41
00:13.13
2. qobi
187
00:30.27
3. randomflyintaco
43
00:37.92
4. AlexanderIII 00:38.29
5. Teikn Smith
1
01:06.34
6. PyroAeroVampire
55
02:03.51
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Today
1. AlexanderIII 03:06.91
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MO3
1. Douglas Shamlin Jr.
557
00:06.79
2. TashiroMiraki
191
00:11.43
3. vowels
202
00:11.50
4. lmsc5k
41
00:12.98
5. sfumato
164
00:13.88
5. MEGACHEESE
64
00:13.88
7. qqwref
259
00:14.03
8. numbrr
224
00:14.10
9. 2015YINJ02
140
00:14.86
10. home
152
00:14.94
AO5
1. Douglas Shamlin Jr.
557
00:07.19
2. TashiroMiraki
191
00:12.15
3. vowels
202
00:12.18
4. qqwref
259
00:14.27
5. lmsc5k
41
00:14.64
6. numbrr
224
00:15.21
7. MEGACHEESE
64
00:15.45
8. jaybrainer
179
00:15.56
9. home
152
00:15.81
10. 2015YINJ02
140
00:16.01
AO12
1. Douglas Shamlin Jr.
557
00:08.09
2. vowels
202
00:12.94
3. TashiroMiraki
191
00:13.69
4. qqwref
259
00:15.59
5. lmsc5k
41
00:15.97
6. numbrr
224
00:16.98
7. NoahR
225
00:17.23
8. Siempie
100
00:17.51
9. MEGACHEESE
64
00:17.66
10. jaybrainer
179
00:17.67
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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2024-03-19 10:37:07

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