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. sauceguardian
97
00:01.12
2. SunOceanBeach
256
00:01.62
3. marbleeeee 00:01.63
4. Kenolo353
101
00:01.91
5. thecymbalsguy 00:02.31
6. randomflyintaco
107
00:02.44
7. godfatheradambelieve...
21
00:02.99
8. Trial
45
00:03.42
9. YoungNam 00:03.69
10. qobi
226
00:03.75
11. Polaris.
13
00:03.85
12. Preston10
54
00:03.94
13. pouldu
93
00:04.75
14. takver 00:04.84
15. Flexo
28
00:05.25
16. Board
75
00:05.85
17. Chaojie Fu
64
00:06.00
18. OuO Seal
10
00:06.66
19. Dorice
242
00:06.69
20. Korneel 00:06.79
This Week
1. Kenolo353
101
00:03.08
2. randomflyintaco
107
00:03.68
3. Chaojie Fu
64
00:06.00
4. Astral
21
00:07.20
5. KETJAK
31
00:09.59
6. gorilla801 00:10.23
7. CLAVDIVS
55
00:15.25
8. Raymond Klassen
4
01:25.84
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Today
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MO3
1. Douglas Shamlin Jr.
692
00:00.90
2. vowels
216
00:01.07
3. jaybrainer
236
00:01.16
4. numbrr
297
00:01.60
5. SunOceanBeach
256
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
236
00:01.56
4. numbrr
297
00:01.73
5. qqwref
259
00:01.87
6. SunOceanBeach
256
00:01.90
7. lmsc5k
63
00:01.92
8. sauceguardian
97
00:01.94
9. Daiwie
86
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
236
00:02.06
4. numbrr
297
00:02.16
5. sauceguardian
97
00:02.28
6. SunOceanBeach
256
00:02.31
7. qqwref
259
00:02.40
8. lmsc5k
63
00:02.49
8. Daiwie
86
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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2025-07-03 03:27:24

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