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. EC31
23
00:01.07
2. Tunnel Keeper
34
00:01.35
3. rozer
180
00:02.58
4. randomflyintaco
60
00:02.92
5. Oryn
147
00:02.93
6. Goomy
52
00:03.47
7. HollyBerry
47
00:03.53
8. sdrawkcaB
22
00:03.87
9. qobi
193
00:04.18
10. Zhang Harvey
6
00:04.57
11. Harry_Canyon
98
00:04.80
12. jamiecjx
62
00:04.81
13. ErikLink 00:04.85
14. kimchee
38
00:04.98
15. Dorice
209
00:05.15
16. Ilbibi
35
00:05.45
17. jorah
83
00:05.66
18. AlexanderIII 00:05.71
19. Tartempion 00:06.09
20. FreddyDolphin
22
00:06.42
This Week
1. EC31
23
00:01.97
2. rozer
180
00:02.58
3. randomflyintaco
60
00:03.18
4. sdrawkcaB
22
00:03.87
5. Harry_Canyon
98
00:04.80
6. kimchee
38
00:04.98
7. Dorice
209
00:05.16
8. NeroHYU
55
00:07.92
9. 2019wildcat#0
10
00:10.86
10. grimmgirlfandom
79
00:23.55
11. smonsta 01:00.96
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Today
1. randomflyintaco
60
00:05.68
2. Dorice
209
00:14.40
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4.--- empty -----:--
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MO3
1. Douglas Shamlin Jr.
599
00:00.94
2. vowels
202
00:01.07
3. jaybrainer
187
00:01.37
4. Sun Ocean Beach
215
00:01.73
5. qqwref
259
00:01.75
6. EC31
23
00:01.79
7. sfumato
164
00:01.84
8. numbrr
240
00:01.89
9. lmsc5k
44
00:01.91
10. TashiroMiraki
195
00:02.00
AO5
1. Douglas Shamlin Jr.
599
00:01.02
2. vowels
202
00:01.44
3. jaybrainer
187
00:01.59
4. qqwref
259
00:01.87
5. Sun Ocean Beach
215
00:01.90
6. lmsc5k
44
00:01.92
7. sfumato
164
00:02.01
8. numbrr
240
00:02.16
9. EC31
23
00:02.20
10. TashiroMiraki
195
00:02.24
AO12
1. Douglas Shamlin Jr.
599
00:01.19
2. vowels
202
00:01.81
3. jaybrainer
187
00:02.20
4. Sun Ocean Beach
215
00:02.31
5. qqwref
259
00:02.40
6. lmsc5k
44
00:02.49
7. sfumato
164
00:02.51
8. numbrr
240
00:02.53
9. TashiroMiraki
195
00:02.56
10. BingBongBob
107
00:02.73
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 11:29:38

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