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. Dino Nuggies
14
00:01.17
2. sfumato
161
00:01.24
3. 3756081
10
00:01.48
4. Sun Ocean Beach
176
00:01.54
5. Eli Seeliger
9
00:01.58
6. 09Ash
13
00:01.84
7. Arjun25
19
00:02.29
8. Schlamph 00:02.44
9. A weird sloth
9
00:02.55
10. erbaagatta 00:02.89
11. Dorice
156
00:03.14
12. poepjes
36
00:03.29
13. AlexanderIII 00:03.33
14. sisi59
37
00:03.54
15. imapuzzler 00:04.46
16. DrVince
51
00:04.60
17. GreyPotato 00:04.69
18. qwertyuiopasdfghjklz...
6
00:04.75
19. Henry Wolsky
18
00:05.17
20. Oryn
92
00:05.42
This Week
1. Dino Nuggies
14
00:01.17
2. sfumato
161
00:01.24
3. 09Ash
13
00:01.84
4. erbaagatta 00:02.89
5. Dorice
156
00:03.14
6. A weird sloth
9
00:03.85
7. imapuzzler 00:04.92
8. AlexanderIII 00:05.08
9. Henry Wolsky
18
00:05.17
10. 巡音流歌
20
00:07.67
11. Mar20 00:08.87
12. 硝酸銀
11
00:09.33
13. Tartempion 00:10.73
14. ChanTP
29
00:21.38
15. Hargaz
14
00:21.80
16. CPKrobot
5
00:24.17
17. Louiz 00:25.86
18. RosemaryW 00:30.21
19. dencordo 00:38.21
20. JuliaGillard 24d 20:31:23.64
Today
1. 09Ash
13
00:02.15
2. AlexanderIII 00:07.01
3. A weird sloth
9
00:08.58
4. Mar20 00:08.87
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
MO3
1. Douglas Shamlin Jr.
445
00:00.94
2. vowels
176
00:01.45
3. qqwref
225
00:01.75
4. sfumato
161
00:01.84
5. jaybrainer
104
00:02.02
6. Sun Ocean Beach
176
00:02.03
7. kyrawr8383
66
00:02.12
8. MEGACHEESE
31
00:02.15
9. Jaiven Eli
26
00:02.21
10. BingBongBob
89
00:02.27
AO5
1. Douglas Shamlin Jr.
445
00:01.04
2. vowels
176
00:01.76
3. qqwref
225
00:01.87
4. sfumato
161
00:02.01
5. Sun Ocean Beach
176
00:02.24
6. MEGACHEESE
31
00:02.25
7. kyrawr8383
66
00:02.40
8. Jaiven Eli
26
00:02.43
9. BingBongBob
89
00:02.46
9. nabifan
74
00:02.46
AO12
1. Douglas Shamlin Jr.
445
00:01.30
2. vowels
176
00:02.28
3. qqwref
225
00:02.40
4. sfumato
161
00:02.51
5. BingBongBob
89
00:02.73
6. Sun Ocean Beach
176
00:02.88
7. TashiroMiraki
148
00:03.06
8. jaybrainer
104
00:03.17
9. MEGACHEESE
31
00:03.23
9. numbrr
144
00:03.23
Robots / programmatic solversinfo  
1.--- empty -----:--
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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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2023-02-04 17:53:26

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