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. Daiwie
93
01:10.76
2. Tunnel Keeper
66
01:38.58
3. lmsc5k
65
01:42.16
4. marbleeeee 02:00.64
5. Kenolo353
115
02:04.52
6. 3328037
62
02:21.79
7. YoungNam 02:22.30
8. Goomy
127
02:37.59
9. Dorice
256
03:08.12
10. randomflyintaco
135
03:10.88
11. insanebrain 03:14.85
12. df
19
03:25.63
13. MingQuk
1
03:25.75
14. aequidens
258
03:29.36
15. qobi
233
03:33.73
16. Kuzuyu 03:45.15
17. hoodxxc
231
04:02.64
18. Avalon 04:29.36
19. AnonyMinor
65
04:31.66
20. Tezexlo
63
04:31.67
This Week
1. Daiwie
93
01:12.91
2. Tunnel Keeper
66
01:48.65
3. marbleeeee 02:00.64
4. Kenolo353
115
02:09.98
5. 3328037
62
02:36.92
6. Dorice
256
03:08.12
7. insanebrain 03:14.85
8. randomflyintaco
135
03:49.06
9. hoodxxc
231
04:02.64
10. chenh 04:44.61
11. knmidorika
53
05:12.09
12. akiazusa 05:17.19
13. rinny 05:18.83
14. Tezexlo
63
05:34.12
15. mrgmath
24
06:54.20
16. aaaaaa22222 07:15.18
17. fcow001
13
07:42.09
18. gorilla801
1
08:06.45
19. 신동근
17
09:26.99
20. daisykid 13:03.65
Today
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MO3
1. Douglas Shamlin Jr.
715
01:01.56
2. Daiwie
93
01:12.75
3. home
194
01:35.44
4. Tunnel Keeper
66
01:36.37
5. numbrr
302
01:38.18
6. TashiroMiraki
217
01:40.69
7. 梦逍遥
70
01:44.39
8. GreyPotato
46
01:47.45
9. lmsc5k
65
01:48.77
10. vowels
216
01:50.31
AO5
1. Douglas Shamlin Jr.
715
01:01.56
2. Daiwie
93
01:11.95
3. Tunnel Keeper
66
01:37.18
4. home
194
01:37.45
5. TashiroMiraki
217
01:43.47
6. 梦逍遥
70
01:46.59
7. numbrr
302
01:48.68
8. GreyPotato
46
01:49.96
9. vowels
216
01:50.31
10. lmsc5k
65
01:52.55
AO12
1. Douglas Shamlin Jr.
715
01:05.53
2. Daiwie
93
01:18.98
3. home
194
01:42.18
4. Tunnel Keeper
66
01:45.85
5. TashiroMiraki
217
01:48.06
6. 梦逍遥
70
01:52.71
7. numbrr
302
01:54.77
8. GreyPotato
46
01:59.04
9. vowels
216
01:59.93
10. lmsc5k
65
02:00.44
Robots / programmatic solversinfo  
1.SATBot00:18.151
2.kanaderu
1
04:55.008
3.Kx1WillTill2:29:56.870

* 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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2025-12-03 07:23:16

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