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. 3756081
9
00:01.49
2. Jaiven Eli
25
00:01.58
3. Arjun25
19
00:01.70
4. Schlamph 00:01.74
5. Puzzle Penguin
4
00:01.94
6. sfumato
159
00:02.07
7. BingBongBob
66
00:02.25
8. kennethaw88
76
00:02.27
9. NaveenR
10
00:02.52
10. Sun Ocean Beach
144
00:02.88
11. Eli Seeliger
7
00:03.11
12. DrVince
45
00:03.92
13. AlexanderIII 00:04.10
14. Hwxyz
26
00:04.86
15. MoFan
50
00:04.93
16. sebby64
11
00:05.74
17. Unknown
9
00:05.76
18. James O'Connor
2
00:05.78
19. liyan
50
00:06.08
20. Savia
27
00:06.75
This Week
1. 3756081
9
00:01.69
2. Schlamph 00:01.74
3. Arjun25
19
00:01.97
4. Puzzle Penguin
4
00:02.85
5. Hwxyz
26
00:04.86
6. Unknown
9
00:05.76
7. James O'Connor
2
00:05.78
8. liyan
50
00:06.08
9. 夏豪一
2
00:09.56
10. Tartempion 00:09.98
11. Jens
23
00:13.14
12. borophyll
21
00:13.99
13. peha13
124
00:18.39
14. roamequilibrium
53
00:55.71
15. Matt912 03:22.94
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Today
1. 3756081
9
00:01.69
2. Puzzle Penguin
4
00:02.85
3. James O'Connor
2
00:05.78
4. 夏豪一
2
00:09.56
5. roamequilibrium
53
00:55.71
6. Matt912 03:22.94
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
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20.--- empty -----:--
MO3
1. Douglas Shamlin Jr.
422
00:00.94
2. vowels
162
00:01.45
3. sfumato
159
00:01.84
4. Jaiven Eli
25
00:02.21
5. BingBongBob
66
00:02.27
6. jaybrainer
75
00:02.28
7. qqwref
188
00:02.34
8. nabifan
58
00:02.41
9. TashiroMiraki
136
00:02.43
10. Eli Seeliger
7
00:02.65
AO5
1. Douglas Shamlin Jr.
422
00:01.04
2. vowels
162
00:01.88
3. sfumato
159
00:02.01
4. Jaiven Eli
25
00:02.43
5. BingBongBob
66
00:02.46
5. nabifan
58
00:02.46
7. TashiroMiraki
136
00:02.50
8. qqwref
188
00:02.52
9. NoahR
180
00:02.81
10. jaybrainer
75
00:02.91
AO12
1. Douglas Shamlin Jr.
422
00:01.30
2. vowels
162
00:02.28
3. sfumato
159
00:02.51
4. BingBongBob
66
00:02.73
5. TashiroMiraki
136
00:03.06
6. qqwref
188
00:03.12
7. jaybrainer
75
00:03.17
8. numbrr
127
00:03.23
9. nabifan
58
00:03.24
10. NoahR
180
00:03.30
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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2022-10-06 06:26:34

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