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. Daiwie
72
01:11.46
2. lmsc5k
59
01:45.12
3. sauceguardian
94
01:55.22
4. Tunnel Keeper
60
01:57.88
5. ypw19
63
02:03.01
6. Goomy
81
02:18.51
7. pt
23
02:28.56
8. 风间呓语
71
02:34.10
9. FlYHouse 02:37.69
10. rayzhang770 03:06.47
11. Dorice
230
03:15.62
12. aequidens
233
03:17.98
13. qobi
213
03:21.87
14. randomflyintaco
93
03:46.99
15. heystonegalaxy
61
03:48.68
16. AgnieszkaNesa
76
04:03.00
17. LesAM 04:24.04
18. geyik
177
04:24.33
19. jhjj
1
05:04.08
20. NanogramFreak 05:39.03
This Week
1. Daiwie
72
01:18.46
2. lmsc5k
59
01:46.25
3. ypw19
63
02:03.01
4. Goomy
81
02:18.51
5. 风间呓语
71
02:34.10
6. FlYHouse 02:37.69
7. rayzhang770 03:06.47
8. qobi
213
03:21.87
9. aequidens
233
03:25.47
10. Dorice
230
03:45.53
11. heystonegalaxy
61
03:48.68
12. randomflyintaco
93
04:00.76
13. LesAM 04:24.04
14. geyik
177
04:24.33
15. Chaojie Fu
60
06:04.03
16. TheET 07:56.73
17. JohnnyB 09:01.87
18. Bhaskar 10:22.92
19. AnonyMinor
36
11:52.74
20. jdubs
129
15:17.26
Today
1. Goomy
81
02:53.23
2. qobi
213
03:21.87
3. Dorice
230
03:49.94
4. randomflyintaco
93
04:10.89
5. geyik
177
04:24.33
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.
666
01:01.56
2. Daiwie
72
01:16.89
3. home
170
01:35.44
4. Tunnel Keeper
60
01:36.37
5. numbrr
276
01:38.18
6. TashiroMiraki
212
01:40.69
7. GreyPotato
46
01:47.45
8. vowels
214
01:50.31
9. lmsc5k
59
01:50.90
10. 梦逍遥
61
01:57.33
AO5
1. Douglas Shamlin Jr.
666
01:01.56
2. Daiwie
72
01:18.66
3. Tunnel Keeper
60
01:37.18
4. home
170
01:38.22
5. TashiroMiraki
212
01:43.47
6. numbrr
276
01:48.68
7. GreyPotato
46
01:49.96
8. vowels
214
01:50.31
9. lmsc5k
59
01:55.14
10. 梦逍遥
61
01:57.70
AO12
1. Douglas Shamlin Jr.
666
01:05.53
2. Daiwie
72
01:22.49
3. home
170
01:42.74
4. Tunnel Keeper
60
01:45.85
5. TashiroMiraki
212
01:48.06
6. numbrr
276
01:54.77
7. GreyPotato
46
01:59.04
8. vowels
214
01:59.93
9. lmsc5k
59
02:00.44
10. 梦逍遥
61
02:02.21
Robots / programmatic solversinfo  
1.kanaderu
1
04:55.008
2.--- empty -----:--
3.--- empty -----:--

* 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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2025-01-28 22:48:55

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