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. jaybrainer
149
00:00.97
2. EJCSD
9
00:01.71
3. EC31
22
00:01.83
3. nrnerfguy
13
00:01.83
5. MEGACHEESE
60
00:01.96
6. Arjun25
21
00:02.36
7. beidaole981 00:02.84
8. Jaiven
23
00:02.96
9. Remilia
57
00:03.98
10. Dorice
183
00:04.07
11. dongrn 00:04.67
12. TheSunBro
23
00:04.68
13. jupiterian
30
00:04.71
14. qobi
168
00:04.82
15. hosino 00:05.28
16. Michelins
54
00:05.53
17. ozzywazzy94
3
00:06.33
18. UncraftedName
53
00:06.61
19. ChinaKongfufu
7
00:06.78
20. Tsansui 00:06.82
This Week
1. EJCSD
9
00:01.71
2. nrnerfguy
13
00:01.83
3. beidaole981 00:02.84
4. Jaiven
23
00:02.96
5. EC31
22
00:03.15
6. Dorice
183
00:04.07
7. jupiterian
30
00:04.71
8. LuckyLuke
9
00:07.98
9. xiaoxin 00:08.00
10. Korneel 00:08.62
11. qobi
168
00:09.29
12. Whiispor 00:11.40
13. GS128
312
00:14.43
14. gemmaavv
7
00:24.40
15. santhone 00:28.73
16. RosemaryW 00:30.82
17. leonleonidis
27
00:40.04
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Today
1. gemmaavv
7
00:24.40
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MO3
1. Douglas Shamlin Jr.
510
00:00.94
2. vowels
198
00:01.45
3. jaybrainer
149
00:01.48
4. qqwref
257
00:01.75
5. EC31
22
00:01.79
6.anonymous
194
00:01.84
6. sfumato
164
00:01.84
8. TashiroMiraki
165
00:02.00
9. kyrawr8383
116
00:02.12
10. MEGACHEESE
60
00:02.15
AO5
1. Douglas Shamlin Jr.
510
00:01.02
2. vowels
198
00:01.69
3. jaybrainer
149
00:01.76
4. qqwref
257
00:01.87
5. sfumato
164
00:02.01
6.anonymous
194
00:02.11
7. EC31
22
00:02.20
8. MEGACHEESE
60
00:02.25
9. TashiroMiraki
165
00:02.28
10. kyrawr8383
116
00:02.40
AO12
1. Douglas Shamlin Jr.
510
00:01.29
2. vowels
198
00:01.99
3. qqwref
257
00:02.40
4. jaybrainer
149
00:02.43
5. sfumato
164
00:02.51
6.anonymous
194
00:02.65
7. BingBongBob
106
00:02.73
8. EC31
22
00:02.85
9. TashiroMiraki
165
00:02.94
10. MEGACHEESE
60
00:03.07
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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2023-10-03 06:24:55

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