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°

Video Tutorial
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Shakashaka


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

This Month
1. sauceguardian
97
00:01.12
2. cugntear
33
00:01.28
3. SunOceanBeachYT
253
00:01.62
4. marbleeeee 00:01.63
5. grimmgirlfandom
150
00:01.80
6. Kenolo353
100
00:01.91
7. thecymbalsguy 00:02.31
8. randomflyintaco
106
00:02.44
9. godfatheradambelieve...
20
00:02.99
10. Trial
45
00:03.42
11. YoungNam 00:03.69
12. qobi
226
00:03.75
13. Polaris.
13
00:03.85
14. Preston10
53
00:03.94
15. pouldu
92
00:04.75
16. takver 00:04.84
17. Flexo
28
00:05.25
18. Board
75
00:05.85
19. Asirano
45
00:05.94
20. OuO Seal
10
00:06.66
This Week
1. Kenolo353
100
00:01.91
2. thecymbalsguy 00:02.31
3. Dorice
242
00:06.69
4. Astral
21
00:07.20
5. KETJAK
30
00:07.83
6. Liewen Chen
6
00:08.09
7. yasuyo 00:10.31
8. gorilla801 00:12.06
9. yyyyyyyejin
71
00:13.89
10. FunAcroFly
64
00:14.36
11. CLAVDIVS
55
00:16.15
12. raman 00:18.64
13. yzwy123
26
00:28.34
14. May John
63
00:28.79
15. takaz 02:59.69
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. Kenolo353
100
00:03.66
2. Astral
21
00:07.20
3. gorilla801 00:12.06
4. CLAVDIVS
55
00:16.15
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.
692
00:00.90
2. vowels
216
00:01.07
3. jaybrainer
235
00:01.27
4. numbrr
296
00:01.60
5. SunOceanBeachYT
253
00:01.73
6. sauceguardian
97
00:01.75
6. qqwref
259
00:01.75
8. EC31
23
00:01.79
9. sfumato
166
00:01.84
10. lmsc5k
63
00:01.91
AO5
1. Douglas Shamlin Jr.
692
00:00.96
2. vowels
216
00:01.44
3. jaybrainer
235
00:01.56
4. numbrr
296
00:01.73
5. qqwref
259
00:01.87
6. SunOceanBeachYT
253
00:01.90
7. lmsc5k
63
00:01.92
8. sauceguardian
97
00:01.94
9. Daiwie
85
00:01.97
10. sfumato
166
00:02.01
AO12
1. Douglas Shamlin Jr.
692
00:01.18
2. vowels
216
00:01.81
3. jaybrainer
235
00:02.06
4. numbrr
296
00:02.16
5. sauceguardian
97
00:02.28
6. SunOceanBeachYT
253
00:02.31
7. qqwref
259
00:02.40
8. lmsc5k
63
00:02.49
8. Daiwie
85
00:02.49
10. sfumato
166
00:02.51
Robots / programmatic solversinfo  
1.kanaderu
1
00:03.677
2.tari77
1
00:11.623
3.sysd
1
00:12.419

* 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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2025-06-27 22:34:20

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