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

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This Month
1. sauceguardian
106
00:01.25
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30
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4. FishingPanda 00:01.80
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This Week
1. sauceguardian
106
00:01.25
2. MushroomsCavern
87
00:02.38
3. KarenNotARobot 00:02.58
4. MadraMor
161
00:02.67
5. CamPuzzle
30
00:02.68
6. shiningyang
11
00:03.31
7. Irisa
164
00:04.08
8. SkyBean1201
118
00:04.71
9. MarlingMath 00:04.91
10. KingRose 00:05.75
11. qobi
237
00:06.18
12. wainwain 00:07.12
13. Zangzihan 00:07.51
14. MarkMark 00:09.08
15. issal 00:09.21
16. TheRealSavikivi
11
00:12.60
17. CLAVDIVS
77
00:12.70
18. gorilla801
1
00:14.88
19. RosemaryW 00:26.50
20. EdwardNygma1
17
00:35.10
Today
1. gorilla801
1
00:14.88
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MO3
1. Douglas Shamlin Jr.
720
00:00.90
2. vowels
216
00:01.07
3. jaybrainer
264
00:01.16
4. lmsc5k
67
00:01.53
5. sauceguardian
106
00:01.54
6. numbrr
320
00:01.60
7. SunOceanBeach
260
00:01.73
8. qqwref
266
00:01.75
9. EC31
23
00:01.79
10. sfumato
168
00:01.84
AO5
1. Douglas Shamlin Jr.
720
00:00.96
2. vowels
216
00:01.44
3. jaybrainer
264
00:01.56
4. lmsc5k
67
00:01.57
5. numbrr
320
00:01.73
6. sauceguardian
106
00:01.82
7. qqwref
266
00:01.87
8. SunOceanBeach
260
00:01.90
9. Daiwie
101
00:01.97
10. sfumato
168
00:02.01
AO12
1. Douglas Shamlin Jr.
720
00:01.18
2. vowels
216
00:01.81
3. lmsc5k
67
00:01.92
4. jaybrainer
264
00:01.99
5. numbrr
320
00:02.16
6. sauceguardian
106
00:02.20
7. SunOceanBeach
260
00:02.31
8. qqwref
266
00:02.40
9. Daiwie
101
00:02.49
10. sfumato
168
00:02.51
Robots / programmatic solversinfo  
1.Paul Bismuth
1
00:02.066
2.kanaderu
1
00:03.677
3.3333700:07.503

* 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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