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

This Month
1. lmsc5k
65
00:10.35
2. Kenolo353
115
00:13.29
3. 飞飞
51
00:13.94
4. marbleeeee 00:14.60
5. 3328037
62
00:16.07
6. KarenNotARobot 00:17.88
7. Dorice
256
00:18.26
8. CosmX
93
00:19.58
9. randomflyintaco
135
00:21.00
10. qobi
233
00:21.21
11. insanebrain 00:21.61
12. mrgmath
25
00:29.79
13. kroller
11
00:32.78
14. kornelbut
35
00:32.79
15. CLAVDIVS
67
00:33.84
16. trLBumm
23
00:35.76
17. AlexanderIII 00:36.01
18. nosenugget
136
00:40.13
19. gorilla801
1
00:42.66
20. ambiorix 00:42.80
This Week
1. marbleeeee 00:14.76
2. Kenolo353
115
00:15.72
3. KarenNotARobot 00:17.88
4. CosmX
93
00:19.58
5. randomflyintaco
135
00:21.00
6. Dorice
256
00:28.14
7. AlexanderIII 00:38.31
8. nosenugget
136
00:40.13
9. kroller
11
00:42.59
10. ambiorix 00:48.86
11. gorilla801
1
00:48.99
12. CLAVDIVS
67
00:49.76
13. Canon
19
01:00.93
14. TostiMaker
28
01:06.97
15. K won
20
01:18.14
16. RosemaryW 01:26.18
17. daghan
34
03:42.00
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. KarenNotARobot 00:17.88
2. CosmX
93
00:19.58
3. nosenugget
136
00:40.13
4. gorilla801
1
00:48.99
5. CLAVDIVS
67
00:49.76
6. Canon
19
01:00.93
7. AlexanderIII 01:03.43
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.
715
00:06.79
2. Daiwie
93
00:10.18
3. numbrr
303
00:10.41
4. sauceguardian
102
00:11.32
5. TashiroMiraki
217
00:11.43
6. vowels
216
00:11.50
7. lmsc5k
65
00:12.39
8. Tunnel Keeper
66
00:13.19
9. jaybrainer
245
00:13.22
10. sfumato
166
00:13.88
AO5
1. Douglas Shamlin Jr.
715
00:07.19
2. Daiwie
93
00:10.62
3. numbrr
303
00:12.12
4. TashiroMiraki
217
00:12.15
5. vowels
216
00:12.18
6. sauceguardian
102
00:12.24
7. lmsc5k
65
00:12.73
8. jaybrainer
245
00:13.55
9. Tunnel Keeper
66
00:13.58
10. qqwref
262
00:14.27
AO12
1. Douglas Shamlin Jr.
715
00:08.09
2. Daiwie
93
00:11.20
3. vowels
216
00:12.94
4. numbrr
303
00:13.28
5. sauceguardian
102
00:13.63
6. TashiroMiraki
217
00:13.69
7. lmsc5k
65
00:14.06
8. qqwref
262
00:15.59
9. Tunnel Keeper
66
00:16.78
10. jaybrainer
245
00:16.91
Robots / programmatic solversinfo  
1.hsjbh
1
01:26.414
2.Chen Enxiu
1
02:28.288
3.sysd
1
03:16.357

* 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.
You need to be logged in to track your averages


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2025-12-10 05:24:07

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