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
116
00:34.08
2. 3328037
63
00:41.55
3. CosmX
94
01:00.11
4. Irisa
110
01:22.39
5. qobi
233
01:35.21
6. gorilla801
1
01:36.60
7. randomflyintaco
137
01:42.96
8. ambiorix 01:46.24
9. Puz-Zul
57
01:47.63
10. Reeeeeeeed 01:50.57
11. burgie12 01:56.77
12. h kim
11
02:19.24
13. AlexanderIII 02:22.62
14. Iwara
3
02:24.72
15. kroller
14
02:27.50
16. CLAVDIVS
69
02:28.10
17. 白切叉燒鵝
55
02:43.11
18. RosemaryW 04:08.64
19. Canon
19
04:15.32
20. LOWIEHAE 04:25.00
This Week
1. Kenolo353
116
00:45.29
2. qobi
233
01:35.21
3. ambiorix 01:46.24
4. gorilla801
1
02:09.01
5. CLAVDIVS
69
02:29.70
6. burgie12 02:40.70
7. kroller
14
03:01.87
8. May John
92
07:14.10
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Today
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20.--- empty -----:--
MO3
1. Douglas Shamlin Jr.
716
00:18.49
2. Daiwie
95
00:26.99
3. lmsc5k
65
00:32.03
4. TashiroMiraki
217
00:32.76
5. numbrr
305
00:32.84
6. sauceguardian
103
00:33.14
7. vowels
216
00:34.09
8. gregg__
82
00:35.04
9. home
197
00:36.38
10. Tunnel Keeper
67
00:37.66
AO5
1. Douglas Shamlin Jr.
716
00:19.11
2. Daiwie
95
00:28.02
3. numbrr
305
00:33.90
4. TashiroMiraki
217
00:34.01
5. vowels
216
00:34.10
6. lmsc5k
65
00:34.60
7. sauceguardian
103
00:35.33
8. home
197
00:37.94
9. gregg__
82
00:38.08
10. Tunnel Keeper
67
00:38.89
AO12
1. Douglas Shamlin Jr.
716
00:19.90
2. Daiwie
95
00:29.65
3. TashiroMiraki
217
00:35.62
4. lmsc5k
65
00:37.66
5. vowels
216
00:37.84
6. sauceguardian
103
00:38.49
7. numbrr
305
00:39.34
8. Tunnel Keeper
67
00:41.99
9. MEGACHEESE
76
00:42.48
10. siri
40
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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2026-01-05 13:54:59

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