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
01:02.57
2. Kenolo353
114
01:07.00
3. sauceguardian
102
01:23.72
4. 飞飞
51
01:31.43
5. 3328037
59
01:33.26
6. randomflyintaco
132
01:50.20
7. qobi
232
01:58.98
8. insanebrain 02:01.84
9. AnonyMinor
64
02:22.34
10. Kuzuyu 02:39.69
11. SakyhyKaren 03:56.14
12. mrgmath
21
04:22.94
13. gorilla801 04:23.29
14. trLBumm
20
04:36.28
15. Jazka 04:41.97
16. aaaaaa22222 04:49.35
17. CLAVDIVS
66
04:52.04
18. maufufu
26
04:56.09
19. Ketone1121
19
05:05.77
20. Peanutmobile
26
07:21.42
This Week
1. lmsc5k
65
01:05.03
2. Kenolo353
114
01:19.47
3. sauceguardian
102
01:23.72
4. 3328037
59
01:33.26
5. randomflyintaco
132
01:50.20
6. qobi
232
01:58.98
7. AnonyMinor
64
02:22.34
8. Kuzuyu 02:39.69
9. insanebrain 02:58.06
10. gorilla801 04:23.87
11. aaaaaa22222 04:49.35
12. CLAVDIVS
66
04:52.04
13. SakyhyKaren 05:03.71
14. RosemaryW 13:50.69
15. Joris Brouwer
40
13:55.23
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Today
1. gorilla801 06:07.09
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MO3
1. Douglas Shamlin Jr.
714
00:36.51
2. Daiwie
92
00:48.09
3. TashiroMiraki
217
00:55.98
4. numbrr
301
00:57.92
5. Tunnel Keeper
66
00:59.85
6. vowels
216
01:00.51
7. lmsc5k
65
01:05.28
8. home
192
01:08.43
9. sauceguardian
102
01:12.38
10. qqwref
261
01:12.68
AO5
1. Douglas Shamlin Jr.
714
00:38.16
2. Daiwie
92
00:48.49
3. TashiroMiraki
217
00:57.30
4. Tunnel Keeper
66
01:00.13
5. numbrr
301
01:00.68
6. vowels
216
01:05.16
7. lmsc5k
65
01:06.46
8. home
192
01:08.43
9. qqwref
261
01:14.12
10. sauceguardian
102
01:14.42
AO12
1. Douglas Shamlin Jr.
714
00:39.23
2. Daiwie
92
00:57.33
3. TashiroMiraki
217
01:01.20
4. Tunnel Keeper
66
01:02.54
5. numbrr
301
01:07.40
6. vowels
216
01:08.91
7. lmsc5k
65
01:11.49
8. sauceguardian
102
01:18.45
9. home
192
01:21.63
10. qqwref
261
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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2025-11-14 04:47:09

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