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. sauceguardian
100
00:40.02
2. Kenolo353
110
00:40.25
3. kennethaw88
150
00:53.31
4. randomflyintaco
120
01:00.34
5. insanebrain 01:04.48
6. HerrNoix 01:08.27
7. AlistairMacAllister
62
01:09.07
8. RaiAT
55
01:23.16
9. Demeris 01:25.03
10. Dorice
247
01:27.69
11. burgie12 01:33.18
12. Parker2278
24
01:34.21
13. sixgs 01:40.66
14. ambiorix 01:42.95
15. qobi
230
01:44.60
16. SakyhyKaren 01:44.98
17. gorilla801 02:11.84
18. Koakuma
49
02:14.49
19. cblizza1 02:16.11
20. CLAVDIVS
62
02:20.72
This Week
1. Kenolo353
110
00:40.25
2. kennethaw88
150
00:53.31
3. insanebrain 01:04.48
4. randomflyintaco
120
01:07.57
5. ambiorix 01:42.95
6. qobi
230
01:44.60
7. burgie12 01:56.66
8. gorilla801 02:11.84
9. CLAVDIVS
62
02:39.79
10. mrgmath
12
03:37.76
11. Suball
25
04:13.71
12. hhhhhde
4
04:58.74
13. aeunchae
8
07:17.55
14. slyguy519
55
24d 20:31:23.64
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. Kenolo353
110
00:59.93
2. hhhhhde
4
04:58.74
3.--- empty -----:--
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
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.
709
00:18.49
2. Daiwie
89
00:26.99
3. lmsc5k
64
00:32.03
4. TashiroMiraki
216
00:32.76
5. numbrr
300
00:32.84
6. sauceguardian
100
00:33.14
7. vowels
216
00:34.09
8. gregg__
78
00:35.04
9. home
192
00:36.38
10. Tunnel Keeper
64
00:37.66
AO5
1. Douglas Shamlin Jr.
709
00:19.11
2. Daiwie
89
00:28.02
3. numbrr
300
00:33.90
4. TashiroMiraki
216
00:34.01
5. vowels
216
00:34.10
6. lmsc5k
64
00:34.60
7. sauceguardian
100
00:35.33
8. home
192
00:37.94
9. gregg__
78
00:38.08
10. Tunnel Keeper
64
00:38.89
AO12
1. Douglas Shamlin Jr.
709
00:19.90
2. Daiwie
89
00:29.65
3. TashiroMiraki
216
00:35.62
4. lmsc5k
64
00:37.66
5. vowels
216
00:37.84
6. sauceguardian
100
00:38.49
7. numbrr
300
00:39.34
8. Tunnel Keeper
64
00:41.99
9. MEGACHEESE
76
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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2025-09-15 22:29:03

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