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
44
00:09.04
2. Dorice
210
00:19.91
3. sdrawkcaB
22
00:20.14
4. Tunnel Keeper
35
00:20.60
5. TheSunBro
34
00:21.05
6. randomflyintaco
60
00:21.69
7. kimchee
38
00:22.82
8. qobi
193
00:26.46
9. AlexanderIII 00:27.85
10. stevethesquid
58
00:30.88
11. Harry_Canyon
98
00:37.02
12. darthV
23
00:44.12
13. ichigo
30
00:44.24
14. Rickieman86 00:48.35
15. ambiorix 00:54.80
16. jorah
83
00:55.71
17. Tartempion 00:58.67
18. rozer
180
01:01.47
19. Marc Mulder
36
01:04.74
20. hewenguang
18
01:05.11
This Week
1. lmsc5k
44
00:09.04
2. sdrawkcaB
22
00:20.14
3. kimchee
38
00:22.82
4. Dorice
210
00:23.80
5. randomflyintaco
60
00:26.42
6. AlexanderIII 00:27.85
7. Harry_Canyon
98
00:39.94
8. ichigo
30
00:44.24
9. Tartempion 00:58.67
10. rozer
180
01:01.47
11. Pengui
16
01:08.89
12. Wuni14 01:44.93
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Today
1. lmsc5k
44
00:10.71
2. Dorice
210
00:25.96
3. AlexanderIII 00:27.99
4. randomflyintaco
60
00:30.84
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
12.--- empty -----:--
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19.--- empty -----:--
20.--- empty -----:--
MO3
1. Douglas Shamlin Jr.
599
00:06.79
2. TashiroMiraki
195
00:11.43
3. vowels
202
00:11.50
4. numbrr
240
00:12.51
5. lmsc5k
44
00:12.98
6. sfumato
164
00:13.88
6. MEGACHEESE
64
00:13.88
8. qqwref
259
00:14.03
9. 2015YINJ02
140
00:14.86
10. home
156
00:14.94
AO5
1. Douglas Shamlin Jr.
599
00:07.19
2. TashiroMiraki
195
00:12.15
3. vowels
202
00:12.18
4. numbrr
240
00:13.05
5. lmsc5k
44
00:13.55
6. qqwref
259
00:14.27
7. MEGACHEESE
64
00:15.45
8. jaybrainer
187
00:15.56
9. home
156
00:15.81
10. 2015YINJ02
140
00:16.01
AO12
1. Douglas Shamlin Jr.
599
00:08.09
2. vowels
202
00:12.94
3. TashiroMiraki
195
00:13.69
4. qqwref
259
00:15.59
5. lmsc5k
44
00:15.67
6. numbrr
240
00:15.72
7. NoahR
229
00:17.23
8. Siempie
102
00:17.51
9. MEGACHEESE
64
00:17.66
10. jaybrainer
187
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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2024-05-20 12:48:17

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