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°

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Shakashaka


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

This Month
1. Kenolo353
118
01:05.74
2. sauceguardian
104
01:18.03
3. Irisa
133
01:36.95
4. LesAM 01:54.41
5. AnonyMinor
73
02:04.35
6. qobi
234
02:06.24
7. aeunchae
8
02:39.48
8. SakyhyKaren 02:42.69
9. Rhododendron
148
02:53.90
10. May John
94
02:54.72
11. Ailurus
183
03:02.84
12. Puz-Zul
60
03:47.34
13. Jazka 04:08.22
14. gorilla801
1
04:15.13
15. Iwara
5
04:17.55
16. super2276 04:48.43
17. RosemaryW 05:01.09
18. hooray
5
07:49.03
19. Yanqui
34
07:57.18
20. Canon
19
15:12.19
This Week
1. Kenolo353
118
01:05.74
2. Irisa
133
01:38.39
3. qobi
234
02:38.56
4. SakyhyKaren 02:42.69
5. May John
94
02:54.72
6. Ailurus
183
03:02.84
7. Iwara
5
04:17.55
8. gorilla801
1
04:23.32
9. hooray
5
07:49.03
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Today
1. Kenolo353
118
01:12.33
2. SakyhyKaren 03:24.75
3.--- empty -----:--
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
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20.--- empty -----:--
MO3
1. Douglas Shamlin Jr.
717
00:36.51
2. Daiwie
96
00:48.09
3. TashiroMiraki
218
00:55.98
4. numbrr
308
00:57.92
5. Tunnel Keeper
69
00:59.85
6. vowels
216
01:00.51
7. lmsc5k
66
01:05.28
8. home
202
01:08.43
9. Kenolo353
118
01:10.63
10. sauceguardian
104
01:12.38
AO5
1. Douglas Shamlin Jr.
717
00:38.16
2. Daiwie
96
00:48.49
3. TashiroMiraki
218
00:57.30
4. Tunnel Keeper
69
01:00.13
5. numbrr
308
01:00.68
6. vowels
216
01:05.16
7. lmsc5k
66
01:06.46
8. home
202
01:08.43
9. Kenolo353
118
01:11.80
10. qqwref
266
01:14.12
AO12
1. Douglas Shamlin Jr.
717
00:39.23
2. Daiwie
96
00:57.33
3. TashiroMiraki
218
01:01.20
4. Tunnel Keeper
69
01:02.54
5. numbrr
308
01:07.40
6. vowels
216
01:08.91
7. lmsc5k
66
01:11.49
8. Kenolo353
118
01:17.65
9. sauceguardian
104
01:18.45
10. home
202
01:21.63
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.
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2026-02-19 16:25:14

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