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. Kenolo353
117
00:34.90
2. sauceguardian
104
00:38.34
3. CosmX
96
00:48.37
4. Irisa
126
00:56.03
5. 飞飞
52
00:59.99
6. qobi
234
01:11.42
7. AnonyMinor
72
01:18.22
8. burgie12 01:33.71
9. Rhododendron
145
01:39.02
10. ambiorix 01:45.00
11. Koakuma
52
01:46.80
12. Jazka 01:51.41
13. gorilla801
1
01:59.24
14. epicuro
6
02:06.61
15. 白切叉燒鵝
61
02:09.53
16. CLAVDIVS
71
02:16.73
17. kroller
18
02:20.08
18. RosemaryW 02:25.36
19. zq
28
02:33.20
20. e74yp8
5
03:01.80
This Week
1. Kenolo353
117
00:34.90
2. sauceguardian
104
00:38.49
3. CosmX
96
00:48.37
4. burgie12 01:33.71
5. Rhododendron
145
01:39.02
6. ambiorix 01:45.00
7. Jazka 01:51.41
8. epicuro
6
02:06.61
9. 白切叉燒鵝
61
02:09.53
10. gorilla801
1
02:15.47
11. CLAVDIVS
71
02:16.73
12. RosemaryW 03:35.31
13. Canon
19
03:37.25
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Today
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MO3
1. Douglas Shamlin Jr.
717
00:18.49
2. Daiwie
96
00:26.99
3. lmsc5k
66
00:32.03
4. TashiroMiraki
217
00:32.76
5. numbrr
306
00:32.84
6. sauceguardian
104
00:33.14
7. vowels
216
00:34.09
8. gregg__
83
00:35.04
9. home
200
00:36.38
10. Tunnel Keeper
68
00:37.66
AO5
1. Douglas Shamlin Jr.
717
00:19.11
2. Daiwie
96
00:28.02
3. numbrr
306
00:33.90
4. TashiroMiraki
217
00:34.01
5. vowels
216
00:34.10
6. lmsc5k
66
00:34.60
7. sauceguardian
104
00:35.33
8. home
200
00:37.94
9. gregg__
83
00:38.08
10. Tunnel Keeper
68
00:38.89
AO12
1. Douglas Shamlin Jr.
717
00:19.90
2. Daiwie
96
00:29.65
3. TashiroMiraki
217
00:35.62
4. lmsc5k
66
00:37.66
5. vowels
216
00:37.84
6. sauceguardian
104
00:38.49
7. numbrr
306
00:39.34
8. Tunnel Keeper
68
00:41.99
9. MEGACHEESE
76
00:42.48
10. Kenolo353
117
00:42.55
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.
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2026-02-03 11:53:02

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