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. Daiwie
79
00:25.06
2. sauceguardian
95
00:33.94
3. gregg__
64
00:41.35
4. Goomy
91
00:45.63
5. Kenolo353
88
00:47.29
6. LesAM 00:51.16
7. GoldChoco36
130
00:55.31
8. randomflyintaco
101
00:58.85
9. Dorice
235
01:05.04
10. Board
72
01:09.07
11. qobi
219
01:14.36
12. 3328037
29
01:14.69
13. sixgs 01:27.19
14. AlexanderIII 01:34.48
15. cpatros 01:36.61
16. burgie12 01:54.78
17. NeroHYU
102
01:58.24
18. Jazka 02:02.21
19. gorilla801 02:13.79
20. Lambchops
15
02:27.48
This Week
1. GoldChoco36
130
00:55.31
2. Kenolo353
88
00:58.04
3. randomflyintaco
101
00:58.85
4. Dorice
235
01:05.83
5. qobi
219
01:15.99
6. AlexanderIII 01:34.48
7. sixgs 01:50.20
8. burgie12 01:54.78
9. gorilla801 02:23.96
10. yasuyo 02:35.33
11. CLAVDIVS
47
02:46.76
12. beatrixwashere
88
03:05.10
13. TLauff 03:52.45
14. Joris Brouwer
36
11:12.96
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. GoldChoco36
130
00:56.10
2. Kenolo353
88
00:58.04
3. randomflyintaco
101
01:20.31
4. yasuyo 02:35.33
5. CLAVDIVS
47
03:41.59
6. TLauff 06:01.04
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
MO3
1. Douglas Shamlin Jr.
678
00:18.49
2. Daiwie
79
00:26.99
3. lmsc5k
61
00:32.03
4. TashiroMiraki
214
00:32.76
5. numbrr
285
00:32.84
6. vowels
214
00:34.09
7. sauceguardian
95
00:34.65
8. home
176
00:36.38
9. Tunnel Keeper
61
00:37.66
10. siri
40
00:37.75
AO5
1. Douglas Shamlin Jr.
678
00:19.11
2. Daiwie
79
00:28.02
3. numbrr
285
00:33.90
4. TashiroMiraki
214
00:34.01
5. vowels
214
00:34.10
6. sauceguardian
95
00:35.33
7. lmsc5k
61
00:35.37
8. home
176
00:37.94
9. Tunnel Keeper
61
00:38.89
10. qqwref
259
00:39.59
AO12
1. Douglas Shamlin Jr.
678
00:19.90
2. Daiwie
79
00:29.65
3. TashiroMiraki
214
00:35.62
4. lmsc5k
61
00:37.70
5. vowels
214
00:37.84
6. sauceguardian
95
00:38.93
7. numbrr
285
00:39.34
8. Tunnel Keeper
61
00:41.99
9. MEGACHEESE
74
00:42.48
10. siri
40
00:42.55
Robots / programmatic solversinfo  
1.GrodGruffalo00:57.455
2.lucaskao03:28.523
3.tari77
1
04:04.574

* 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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2025-03-26 14:01:44

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