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. sauceguardian
98
01:06.87
2. Kenolo353
103
01:15.36
3. randomflyintaco
110
01:53.81
4. qobi
227
02:16.36
5. Dorice
242
02:39.00
6. Chaojie Fu
65
02:54.79
7. Victorious1
178
03:13.15
8. cpatros 03:14.66
9. insanebrain 03:20.10
10. AnonyMinor
52
03:28.00
11. crema
168
03:39.30
12. Moxx
43
03:55.70
13. Usher BArCs
42
04:07.51
14. RineandYou 05:15.50
15. CLAVDIVS
56
05:16.12
16. Astral
22
05:39.73
17. gorilla801 05:55.97
18. jdubs
137
06:16.90
19. Liewen Chen
8
09:00.54
20. Skemmer 09:24.50
This Week
1. sauceguardian
98
01:06.87
2. Kenolo353
103
01:21.94
3. randomflyintaco
110
01:53.81
4. Chaojie Fu
65
02:54.79
5. insanebrain 03:20.10
6. AnonyMinor
52
03:33.99
7. Usher BArCs
42
04:07.51
8. RineandYou 05:15.50
9. CLAVDIVS
56
05:16.12
10. Skemmer 09:24.50
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Today
1. randomflyintaco
110
02:22.12
2. Chaojie Fu
65
02:54.79
3. insanebrain 03:27.18
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
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MO3
1. Douglas Shamlin Jr.
693
00:36.51
2. Daiwie
86
00:48.09
3. TashiroMiraki
215
00:55.98
4. numbrr
297
00:57.92
5. Tunnel Keeper
63
00:59.85
6. vowels
216
01:00.51
7. lmsc5k
63
01:06.53
8. home
188
01:08.43
9. sauceguardian
98
01:12.38
10. qqwref
259
01:12.68
AO5
1. Douglas Shamlin Jr.
693
00:38.16
2. Daiwie
86
00:48.49
3. TashiroMiraki
215
00:57.30
4. Tunnel Keeper
63
01:00.13
5. numbrr
297
01:00.68
6. vowels
216
01:05.16
7. home
188
01:08.43
8. lmsc5k
63
01:09.37
9. qqwref
259
01:14.12
10. sauceguardian
98
01:14.42
AO12
1. Douglas Shamlin Jr.
693
00:39.23
2. Daiwie
86
00:57.33
3. TashiroMiraki
215
01:01.20
4. Tunnel Keeper
63
01:02.54
5. numbrr
297
01:07.40
6. vowels
216
01:08.91
7. lmsc5k
63
01:13.90
8. sauceguardian
98
01:18.45
9. home
188
01:21.63
10. qqwref
259
01:22.02
Robots / programmatic solversinfo  
1.kanaderu
1
04:45.694
2.dansto76510:53.339
3.Chen Enxiu
1
17:46.098

* 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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2025-07-14 21:29:19

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