Shakashaka


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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
65
01:05.03
2. Kenolo353
115
01:10.13
3. sauceguardian
102
01:23.72
4. 3328037
62
01:33.26
5. randomflyintaco
135
01:50.20
6. hoodxxc
232
01:56.02
7. qobi
233
01:58.98
8. Dorice
256
01:59.74
9. AnonyMinor
66
02:22.34
10. insanebrain 02:58.06
11. Kuzuyu 03:19.54
12. knmidorika
53
03:40.81
13. gorilla801
1
03:50.86
14. sixgs 04:16.19
15. akiazusa 04:16.43
16. CLAVDIVS
67
04:52.04
17. Jazka 05:00.14
18. SakyhyKaren 05:03.71
19. RosemaryW 11:06.41
20. Joris Brouwer
41
13:55.23
This Week
1. Kenolo353
115
01:13.17
2. randomflyintaco
135
02:12.68
3. AnonyMinor
66
03:02.27
4. gorilla801
1
03:50.93
5. K won
20
17:46.05
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Today
1. gorilla801
1
04:44.43
2.--- empty -----:--
3.--- empty -----:--
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MO3
1. Douglas Shamlin Jr.
715
00:36.51
2. Daiwie
93
00:48.09
3. TashiroMiraki
217
00:55.98
4. numbrr
303
00:57.92
5. Tunnel Keeper
66
00:59.85
6. vowels
216
01:00.51
7. lmsc5k
65
01:05.28
8. home
195
01:08.43
9. sauceguardian
102
01:12.38
10. qqwref
262
01:12.68
AO5
1. Douglas Shamlin Jr.
715
00:38.16
2. Daiwie
93
00:48.49
3. TashiroMiraki
217
00:57.30
4. Tunnel Keeper
66
01:00.13
5. numbrr
303
01:00.68
6. vowels
216
01:05.16
7. lmsc5k
65
01:06.46
8. home
195
01:08.43
9. qqwref
262
01:14.12
10. sauceguardian
102
01:14.42
AO12
1. Douglas Shamlin Jr.
715
00:39.23
2. Daiwie
93
00:57.33
3. TashiroMiraki
217
01:01.20
4. Tunnel Keeper
66
01:02.54
5. numbrr
303
01:07.40
6. vowels
216
01:08.91
7. lmsc5k
65
01:11.49
8. sauceguardian
102
01:18.45
9. home
195
01:21.63
10. qqwref
262
01:22.02
Robots / programmatic solversinfo  
1.kanaderu
1
04:45.694
2.dansto76510:53.339
3.Chen Enxiu
1
17:46.098

* 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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2025-12-10 04:09:31

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