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°

Video Tutorial
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Shakashaka


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

New Puzzle
This Month
1. home
208
00:49.87
2. Kenolo353
120
01:00.00
3. Jbrunt
142
02:01.50
4. RaiT
102
02:04.02
5. AnonyMinor
77
02:21.31
6. Savia
76
02:22.65
7. gepap 02:36.22
8. qobi
235
02:40.28
9. Jazka 02:51.82
10. SakyhyKaren 02:52.32
11. ethanguo 02:52.55
12. fcow001
18
04:02.08
13. gorilla801
1
04:06.69
14. Odenzon
17
05:17.61
15. laries
39
06:18.51
16. RosemaryW 06:38.39
17. WYJ
63
07:08.67
18. Canon
19
11:42.36
19. ericd 11:44.14
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This Week
1. Kenolo353
120
01:13.51
2. RaiT
102
02:04.02
3. ethanguo 02:52.55
4. qobi
235
03:08.39
5. Odenzon
17
05:17.61
6. RosemaryW 06:38.39
7. laries
39
07:50.87
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Today
1. ethanguo 02:52.55
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MO3
1. Douglas Shamlin Jr.
718
00:36.51
2. Daiwie
97
00:48.09
3. home
208
00:55.15
4. TashiroMiraki
221
00:55.98
5. numbrr
310
00:57.92
6. Tunnel Keeper
70
00:59.85
7. vowels
216
01:00.51
8. lmsc5k
66
01:05.28
9. Kenolo353
120
01:07.18
10. sauceguardian
105
01:12.38
AO5
1. Douglas Shamlin Jr.
718
00:38.16
2. Daiwie
97
00:48.49
3. home
208
00:56.02
4. TashiroMiraki
221
00:57.30
5. Tunnel Keeper
70
01:00.13
6. numbrr
310
01:00.68
7. vowels
216
01:05.16
8. lmsc5k
66
01:06.46
9. Kenolo353
120
01:10.99
10. qqwref
266
01:14.12
AO12
1. Douglas Shamlin Jr.
718
00:39.23
2. Daiwie
97
00:57.33
3. home
208
00:59.38
4. TashiroMiraki
221
01:01.20
5. Tunnel Keeper
70
01:02.54
6. numbrr
310
01:07.40
7. vowels
216
01:08.91
8. lmsc5k
66
01:11.49
9. Kenolo353
120
01:16.27
10. sauceguardian
105
01:18.45
Robots / programmatic solversinfo  
1.Paul Bismuth
1
00:15.743
2.kanaderu
1
04:45.694
3.dansto76510:53.339

* 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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