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. randomflyintaco
50
01:58.89
2. Dorice
205
02:00.42
3. Tunnel Keeper
16
02:08.29
4. qobi
190
02:21.73
5. gepap 02:32.84
6. Nanamahere 02:43.70
7. Harry_Canyon
95
03:05.85
8. SmerphSmasher
73
03:20.57
9. dema
4
04:03.08
10. AlexanderIII 04:19.37
11. sronse 05:11.04
12. cjnudger 06:46.50
13. Tartempion 07:20.28
14. Joris Brouwer
24
13:11.55
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This Week
1. Tunnel Keeper
16
02:08.29
2. randomflyintaco
50
02:16.89
3. Dorice
205
02:18.31
4. qobi
190
02:34.96
5. Harry_Canyon
95
03:05.85
6. SmerphSmasher
73
03:20.57
7. AlexanderIII 04:19.37
8. sronse 05:37.43
9. Tartempion 09:03.69
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Today
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MO3
1. Douglas Shamlin Jr.
575
00:36.51
2. TashiroMiraki
193
00:55.98
3. vowels
202
01:00.51
4. home
155
01:08.43
5. qqwref
259
01:12.68
6. lmsc5k
41
01:16.10
7. MEGACHEESE
64
01:17.70
8. 2015YINJ02
140
01:23.44
9. numbrr
232
01:23.62
10. geono
61
01:26.09
AO5
1. Douglas Shamlin Jr.
575
00:38.16
2. TashiroMiraki
193
00:57.30
3. vowels
202
01:05.16
4. home
155
01:08.43
5. qqwref
259
01:14.12
6. lmsc5k
41
01:18.20
7. MEGACHEESE
64
01:22.66
8. NoahR
226
01:27.05
9. numbrr
232
01:27.24
10. 2015YINJ02
140
01:28.86
AO12
1. Douglas Shamlin Jr.
575
00:39.23
2. TashiroMiraki
193
01:01.20
3. vowels
202
01:08.91
4. lmsc5k
41
01:21.31
5. home
155
01:21.63
6. qqwref
259
01:22.02
7. MEGACHEESE
64
01:25.85
8. NoahR
226
01:33.52
9. 2015YINJ02
140
01:36.90
10. Kenolo353
77
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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2024-04-18 05:06:36

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