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

New Puzzle
This Month
1. sauceguardian
106
00:33.17
2. Kenolo353
123
00:35.99
3. AnonyMinor
82
00:53.15
4. shiningyang
10
00:59.17
5. HerrNoix 01:00.73
6. qobi
237
01:07.13
7. WYJ
78
01:32.69
8. Iwara
5
01:40.63
9. Odenzon
32
01:58.13
10. Jazka 02:06.08
11. gorilla801
1
02:06.40
12. crema
271
02:12.17
13. ambiorix 02:20.43
14. oddsocks 02:20.61
15. yosiaki
109
03:17.28
16. daisyisaflower
1
03:19.42
17. RosemaryW 03:20.76
18. KETJAK
39
04:02.19
19. laries
41
04:09.41
20. TLauff 04:17.63
This Week
1. shiningyang
10
00:59.17
2. qobi
237
01:13.98
3. WYJ
78
01:32.69
4. Odenzon
32
02:03.58
5. Jazka 02:06.08
6. RosemaryW 03:20.76
7. yosiaki
109
05:11.80
8. coleslaw
15
09:55.04
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Today
1. shiningyang
10
01:27.72
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MO3
1. Douglas Shamlin Jr.
720
00:18.49
2. Daiwie
101
00:26.99
3. home
213
00:27.71
4. numbrr
320
00:30.39
5. sauceguardian
106
00:31.88
6. lmsc5k
67
00:32.03
7. TashiroMiraki
226
00:32.76
8. vowels
216
00:34.09
9. gregg__
89
00:35.04
10. Kenolo353
123
00:36.50
AO5
1. Douglas Shamlin Jr.
720
00:19.11
2. Daiwie
101
00:28.02
3. home
213
00:28.18
4. numbrr
320
00:32.15
5. sauceguardian
106
00:33.89
6. TashiroMiraki
226
00:34.01
7. vowels
216
00:34.10
8. lmsc5k
67
00:34.60
9. Kenolo353
123
00:36.84
10. gregg__
89
00:38.08
AO12
1. Douglas Shamlin Jr.
720
00:19.90
2. Daiwie
101
00:29.65
3. home
213
00:30.26
4. TashiroMiraki
226
00:35.62
5. numbrr
320
00:36.15
6. sauceguardian
106
00:36.24
7. lmsc5k
67
00:37.66
8. vowels
216
00:37.84
9. Kenolo353
123
00:39.49
10. Tunnel Keeper
70
00:41.99
Robots / programmatic solversinfo  
1.Paul Bismuth
1
00:08.116
2.GrodGruffalo00:57.455
3.lucaskao03:28.523

* 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.
You need to be logged in to track your averages

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