Shakashaka


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Special thanks to Aevrin for the translation

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°

Video Tutorial
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Shakashaka


5x5 Shakashaka | 10x10 Shakashaka | 15x15 Shakashaka | 20x20 Shakashaka | 25x25 Shakashaka

This Month
1. sauceguardian
97
00:08.79
2. Kenolo353
101
00:11.86
3. trj1111
23
00:18.92
4. SunOceanBeach
258
00:19.47
5. randomflyintaco
107
00:22.73
6. KarenNotARobot 00:22.80
7. marbleeeee 00:22.96
8. qobi
226
00:24.20
9. Dorice
242
00:24.34
10. AlexanderIII 00:34.40
11. Board
75
00:35.52
12. godfatheradambelieve...
21
00:44.22
13. Korneel 00:46.36
14. GuelphBuyersClub
8
00:46.85
15. sixgs 00:48.37
16. Chaojie Fu
64
00:49.01
17. gorilla801 00:49.45
18. kornelbut
11
00:50.30
19. Joshyb 00:52.09
20. CLAVDIVS
56
00:54.54
This Week
1. Kenolo353
101
00:11.86
2. trj1111
23
00:18.92
3. randomflyintaco
107
00:23.53
4. qobi
226
00:24.20
5. KarenNotARobot 00:24.50
6. AlexanderIII 00:49.34
7. drbop
41
00:57.41
8. gorilla801 00:58.50
9. ambiorix 01:00.03
10. KETJAK
32
01:20.43
11. Wuni14 01:22.73
12. CLAVDIVS
56
01:25.31
13. Ruan
30
02:52.85
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. Kenolo353
101
00:15.55
2. randomflyintaco
107
00:23.53
3. KarenNotARobot 00:27.32
4. drbop
41
00:57.41
5. CLAVDIVS
56
01:25.31
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.
693
00:06.79
2. Daiwie
86
00:10.18
3. numbrr
297
00:10.41
4. sauceguardian
97
00:11.32
5. TashiroMiraki
215
00:11.43
6. vowels
216
00:11.50
7. lmsc5k
63
00:12.39
8. Tunnel Keeper
63
00:13.19
9. jaybrainer
237
00:13.22
10. sfumato
166
00:13.88
AO5
1. Douglas Shamlin Jr.
693
00:07.19
2. Daiwie
86
00:10.62
3. numbrr
297
00:12.12
4. TashiroMiraki
215
00:12.15
5. vowels
216
00:12.18
6. sauceguardian
97
00:12.24
7. lmsc5k
63
00:12.73
8. jaybrainer
237
00:13.55
9. Tunnel Keeper
63
00:13.58
10. qqwref
259
00:14.27
AO12
1. Douglas Shamlin Jr.
693
00:08.09
2. Daiwie
86
00:11.20
3. vowels
216
00:12.94
4. numbrr
297
00:13.28
5. sauceguardian
97
00:13.63
6. TashiroMiraki
215
00:13.69
7. lmsc5k
63
00:14.06
8. qqwref
259
00:15.59
9. Tunnel Keeper
63
00:16.78
10. jaybrainer
237
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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2025-07-06 20:52:33

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