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
00:31.15
2. GoldChoco36
133
00:42.68
3. Kenolo353
89
00:45.80
4. Yeti
110
00:55.57
5. Board
73
01:00.59
6. randomflyintaco
102
01:05.65
7. qobi
221
01:08.21
8. Dorice
238
01:11.55
9. cpatros 01:16.46
10. sixgs 01:36.54
11. AlexanderIII 01:37.44
12. TQ-V85Sn
80
01:38.28
13. burgie12 01:40.51
14. trj1111 01:41.34
15. Jazka 01:42.58
16. swpomeroy
166
01:57.95
17. wyq97 02:22.49
18. chlorine 02:33.59
19. zooandroo
90
02:34.11
20. gorilla801 02:36.92
This Week
1. Kenolo353
89
00:45.80
2. qobi
221
01:14.65
3. cpatros 01:34.48
4. sixgs 01:36.54
5. AlexanderIII 01:37.44
6. TQ-V85Sn
80
01:38.28
7. burgie12 01:47.05
8. wyq97 02:22.49
9. zooandroo
90
02:34.11
10. CLAVDIVS
50
03:15.03
11. TLauff 05:02.66
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. qobi
221
01:25.00
2. CLAVDIVS
50
03:51.82
3.--- empty -----:--
4.--- empty -----:--
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
00:18.49
2. Daiwie
83
00:26.99
3. lmsc5k
62
00:32.03
4. TashiroMiraki
214
00:32.76
5. numbrr
289
00:32.84
6. vowels
214
00:34.09
7. sauceguardian
95
00:34.65
8. home
180
00:36.38
9. Tunnel Keeper
62
00:37.66
10. siri
40
00:37.75
AO5
1. Douglas Shamlin Jr.
685
00:19.11
2. Daiwie
83
00:28.02
3. numbrr
289
00:33.90
4. TashiroMiraki
214
00:34.01
5. vowels
214
00:34.10
6. lmsc5k
62
00:34.60
7. sauceguardian
95
00:35.33
8. home
180
00:37.94
9. Tunnel Keeper
62
00:38.89
10. qqwref
259
00:39.59
AO12
1. Douglas Shamlin Jr.
685
00:19.90
2. Daiwie
83
00:29.65
3. TashiroMiraki
214
00:35.62
4. lmsc5k
62
00:37.66
5. vowels
214
00:37.84
6. sauceguardian
95
00:38.93
7. numbrr
289
00:39.34
8. Tunnel Keeper
62
00:41.99
9. MEGACHEESE
74
00:42.48
10. siri
40
00:42.55
Robots / programmatic solversinfo  
1.GrodGruffalo00:57.455
2.lucaskao03:28.523
3.tari77
1
04:04.574

* 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 08:11:47

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