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. lmsc5k
62
00:01.92
2. Kenolo353
92
00:02.02
3. ecto
71
00:02.45
4. Dorice
239
00:02.62
4. Board
73
00:02.62
6. randomflyintaco
103
00:02.87
7. qobi
222
00:03.04
8. KarenNotARobot 00:03.15
9. Cinder_F
10
00:03.30
10. marbleeeee 00:03.90
11. Lambchops
35
00:04.15
12. cpatros 00:04.61
13. KarasuKarasu 00:04.71
14. j3573r 00:04.87
15. trj1111 00:04.94
16. TQ-V85Sn
81
00:05.02
17. thost 00:05.50
18. Mordekagne23
28
00:05.59
19. axolotl5
6
00:06.15
20. sisi
13
00:06.67
This Week
1. Kenolo353
92
00:02.31
2. Dorice
239
00:02.62
3. randomflyintaco
103
00:04.47
4. axolotl5
6
00:06.15
5. sisi
13
00:06.67
6. sixgs 00:08.24
7. Korneel 00:08.60
8. X-Jean
4
00:10.59
9. Meowy
20
00:11.11
10. CLAVDIVS
51
00:11.49
11. KMG123456789 00:12.49
12. Feanor 00:13.93
13. Koakuma
47
00:20.64
14. wellwhynot
65
00:24.69
15. coleslaw
11
00:58.16
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20.--- empty -----:--
Today
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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 -----:--
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19.--- empty -----:--
20.--- empty -----:--
MO3
1. Douglas Shamlin Jr.
688
00:00.90
2. vowels
214
00:01.07
3. jaybrainer
228
00:01.27
4. numbrr
291
00:01.60
5. Sun Ocean Beach
239
00:01.73
6. qqwref
259
00:01.75
7. EC31
23
00:01.79
8. sfumato
166
00:01.84
9. sauceguardian
95
00:01.86
10. lmsc5k
62
00:01.91
AO5
1. Douglas Shamlin Jr.
688
00:00.96
2. vowels
214
00:01.44
3. jaybrainer
228
00:01.56
4. numbrr
291
00:01.73
5. qqwref
259
00:01.87
6. Sun Ocean Beach
239
00:01.90
7. lmsc5k
62
00:01.92
8. sauceguardian
95
00:01.96
9. Daiwie
84
00:01.97
10. sfumato
166
00:02.01
AO12
1. Douglas Shamlin Jr.
688
00:01.18
2. vowels
214
00:01.81
3. jaybrainer
228
00:02.06
4. numbrr
291
00:02.16
5. Sun Ocean Beach
239
00:02.31
6. sauceguardian
95
00:02.39
7. qqwref
259
00:02.40
8. lmsc5k
62
00:02.49
8. Daiwie
84
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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2025-05-15 03:53:11

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