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
111
00:35.73
2. sauceguardian
100
00:36.75
3. lmsc5k
64
00:38.97
4. Dorice
250
00:46.04
5. kennethaw88
151
00:53.31
6. Wangxuye 00:55.56
7. randomflyintaco
124
01:00.94
8. insanebrain 01:04.48
9. RealShrimp 01:07.89
10. AnonyMinor
60
01:17.71
11. qobi
231
01:20.97
12. Demeris 01:25.03
13. Jazka 01:27.18
14. burgie12 01:34.09
15. ambiorix 01:36.35
16. mrgmath
15
01:44.38
17. Cyber King
48
01:52.08
18. AlexanderIII 01:58.56
19. RaiAT
62
01:58.86
20. gorilla801 02:09.49
This Week
1. sauceguardian
100
00:36.75
2. Kenolo353
111
00:38.69
3. Dorice
250
00:46.04
4. randomflyintaco
124
01:02.80
5. qobi
231
01:21.42
6. insanebrain 01:38.75
7. mrgmath
15
01:44.38
8. AlexanderIII 01:58.56
9. burgie12 02:04.79
10. gorilla801 02:09.49
11. CLAVDIVS
64
02:39.99
12. Kakuritsu 04:58.59
13. Candy Player
1
10:07.47
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20.--- empty -----:--
Today
1. Kenolo353
111
00:46.66
2.--- empty -----:--
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.
711
00:18.49
2. Daiwie
90
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__
79
00:35.04
9. home
192
00:36.38
10. Tunnel Keeper
64
00:37.66
AO5
1. Douglas Shamlin Jr.
711
00:19.11
2. Daiwie
90
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__
79
00:38.08
10. Tunnel Keeper
64
00:38.89
AO12
1. Douglas Shamlin Jr.
711
00:19.90
2. Daiwie
90
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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2025-10-05 05:56:25

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