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
62
00:12.62
2. GoldChoco36
133
00:14.37
3. 3328037
43
00:16.40
4. Kenolo353
89
00:16.91
5. Board
73
00:18.11
6. qobi
221
00:20.91
7. KarenNotARobot 00:21.95
8. randomflyintaco
102
00:22.97
9. Dorice
238
00:25.73
10. AlexanderIII 00:28.72
11. sixgs 00:31.72
12. TQ-V85Sn
80
00:32.27
13. beatrixwashere
97
00:35.62
14. Lambchops
30
00:36.61
15. zooandroo
90
00:38.58
16. wyq97 00:42.03
17. swpomeroy
166
00:42.99
18. gorilla801 00:47.51
19. chlorine 00:50.24
20. AnonyMinor
47
00:50.94
This Week
1. Kenolo353
89
00:16.94
2. KarenNotARobot 00:21.95
3. qobi
221
00:25.51
4. AlexanderIII 00:30.93
5. TQ-V85Sn
80
00:32.27
6. sixgs 00:33.97
7. beatrixwashere
97
00:35.62
8. zooandroo
90
00:38.58
9. swpomeroy
166
00:42.99
10. chlorine 00:50.24
11. CLAVDIVS
50
01:04.55
12. bh311111 01:24.66
13. Ruan
18
01:52.17
14. AMQUACK 02:48.30
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. qobi
221
00:34.42
2. AlexanderIII 00:41.71
3. CLAVDIVS
50
01:25.64
4. Ruan
18
01:52.17
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.
685
00:06.79
2. Daiwie
83
00:10.18
3. numbrr
289
00:10.41
4. sauceguardian
95
00:11.32
5. TashiroMiraki
214
00:11.43
6. vowels
214
00:11.50
7. lmsc5k
62
00:12.39
8. Tunnel Keeper
62
00:13.19
9. jaybrainer
226
00:13.22
10. sfumato
166
00:13.88
AO5
1. Douglas Shamlin Jr.
685
00:07.19
2. Daiwie
83
00:10.62
3. numbrr
289
00:12.12
4. TashiroMiraki
214
00:12.15
5. vowels
214
00:12.18
6. sauceguardian
95
00:12.24
7. lmsc5k
62
00:12.73
8. jaybrainer
226
00:13.55
9. Tunnel Keeper
62
00:13.58
10. qqwref
259
00:14.27
AO12
1. Douglas Shamlin Jr.
685
00:08.09
2. Daiwie
83
00:11.20
3. vowels
214
00:12.94
4. numbrr
289
00:13.28
5. sauceguardian
95
00:13.63
6. TashiroMiraki
214
00:13.69
7. lmsc5k
62
00:14.06
8. qqwref
259
00:15.59
9. Tunnel Keeper
62
00:16.78
10. jaybrainer
226
00:16.91
Robots / programmatic solversinfo  
1.Chen Enxiu
1
02:28.288
2.sysd
1
03:16.357
3.dansto76503:29.621

* 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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2025-04-30 07:31:33

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