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. Daiwie
79
00:42.82
2. KkLewandowski
76
01:26.63
3. Kenolo353
88
01:27.34
4. FlYHouse 01:40.06
5. GoldChoco36
131
01:41.00
6. Dorice
236
01:49.08
7. randomflyintaco
102
02:02.76
8. LesAM 02:04.06
9. 3328037
33
02:07.08
10. qobi
219
02:34.39
11. sixgs 02:54.38
12. Board
72
02:55.35
13. cpatros 02:58.94
14. Koakuma
46
04:16.49
15. Jazka 04:47.65
16. burgie12 05:00.62
17. CLAVDIVS
48
05:29.36
18. MelK12 05:38.13
19. yasuyo 05:52.67
20. jdubs
132
07:08.50
This Week
1. Kenolo353
88
01:29.67
2. GoldChoco36
131
01:41.00
3. Dorice
236
01:59.12
4. randomflyintaco
102
02:02.76
5. 3328037
33
02:07.08
6. cpatros 03:23.02
7. CLAVDIVS
48
06:01.57
8. gorilla801 07:38.38
9. Korneel 09:52.84
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Today
1. Kenolo353
88
01:29.67
2. randomflyintaco
102
02:50.61
3.--- empty -----:--
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
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MO3
1. Douglas Shamlin Jr.
680
00:36.51
2. Daiwie
79
00:48.09
3. TashiroMiraki
214
00:55.98
4. numbrr
286
00:57.92
5. Tunnel Keeper
61
00:59.85
6. vowels
214
01:00.51
7. lmsc5k
61
01:06.53
8. home
176
01:08.43
9. sauceguardian
95
01:12.38
10. qqwref
259
01:12.68
AO5
1. Douglas Shamlin Jr.
680
00:38.16
2. Daiwie
79
00:48.49
3. TashiroMiraki
214
00:57.30
4. Tunnel Keeper
61
01:00.13
5. numbrr
286
01:00.68
6. vowels
214
01:05.16
7. home
176
01:08.43
8. lmsc5k
61
01:09.37
9. qqwref
259
01:14.12
10. sauceguardian
95
01:14.74
AO12
1. Douglas Shamlin Jr.
680
00:39.23
2. Daiwie
79
00:57.33
3. TashiroMiraki
214
01:01.20
4. Tunnel Keeper
61
01:02.54
5. numbrr
286
01:07.40
6. vowels
214
01:08.91
7. lmsc5k
61
01:13.90
8. sauceguardian
95
01:18.45
9. home
176
01:21.63
10. qqwref
259
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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2025-04-02 08:00:55

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