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. KarenNotARobot 00:01.99
2. Dorice
233
00:02.28
3. FlYHouse 00:02.58
4. !?
13
00:02.75
5. 3328037
26
00:02.77
6. Solver83
49
00:02.78
7. Goomy
84
00:02.96
8. Board
71
00:03.05
9. geyik
177
00:03.77
10. randomflyintaco
98
00:03.81
11. monkeyman88
15
00:03.91
12. qobi
215
00:04.41
13. puzzlexbow
11
00:04.82
14. MasonKui 00:05.79
15. Korneel 00:05.81
16. Einsteinus
109
00:05.84
17. sixgs 00:06.00
18. LesAM 00:06.09
19. gorilla801 00:06.61
20. DeusAdAstra 00:07.46
This Week
1. KarenNotARobot 00:02.10
2. Solver83
49
00:02.78
3. Goomy
84
00:02.96
4. Board
71
00:03.05
5. randomflyintaco
98
00:04.47
6. gorilla801 00:06.61
7. sixgs 00:06.70
8. DeusAdAstra 00:07.46
9. Ariadna
21
00:12.08
10. CLAVDIVS
44
00:14.41
11. COlDAiR
53
00:19.94
12. Ssuddokku
2
03:16.72
13. Yeti
96
24d 20:31:23.64
14.--- empty -----:--
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19.--- empty -----:--
20.--- empty -----:--
Today
1. KarenNotARobot 00:03.45
2. gorilla801 00:06.61
3. sixgs 00:09.02
4. CLAVDIVS
44
00:20.42
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.
670
00:00.90
2. vowels
214
00:01.07
3. jaybrainer
215
00:01.27
4. numbrr
279
00:01.60
5. Sun Ocean Beach
237
00:01.73
6. qqwref
259
00:01.75
7. EC31
23
00:01.79
8. sfumato
165
00:01.84
9. sauceguardian
94
00:01.86
10. lmsc5k
59
00:01.91
AO5
1. Douglas Shamlin Jr.
670
00:00.96
2. vowels
214
00:01.44
3. jaybrainer
215
00:01.56
4. numbrr
279
00:01.73
5. qqwref
259
00:01.87
6. Sun Ocean Beach
237
00:01.90
7. lmsc5k
59
00:01.92
8. sauceguardian
94
00:01.96
9. sfumato
165
00:02.01
10. EC31
23
00:02.20
AO12
1. Douglas Shamlin Jr.
670
00:01.18
2. vowels
214
00:01.81
3. jaybrainer
215
00:02.06
4. numbrr
279
00:02.16
5. Sun Ocean Beach
237
00:02.31
6. sauceguardian
94
00:02.39
7. qqwref
259
00:02.40
8. lmsc5k
59
00:02.49
9. sfumato
165
00:02.51
10. TashiroMiraki
213
00:02.56
Robots / programmatic solversinfo  
1.kanaderu
1
00:03.677
2.tari77
1
00:11.623
3.senyao
1
00:26.041

* 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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2025-02-22 15:06:24

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