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. Kenolo353
115
00:02.31
2. kroller
13
00:02.55
3. hoodxxc
232
00:02.69
4. Dorice
257
00:02.88
5. mrgmath
25
00:02.97
6. Irisa
106
00:02.99
7. insanebrain 00:03.60
8. Saugust2
44
00:03.89
9. Cricketwithagun
24
00:03.96
10. KarenNotARobot 00:04.36
11. randomflyintaco
136
00:05.11
12. marbleeeee 00:05.37
13. androcles 00:06.03
14. Kaitzschu
189
00:06.92
15. Hehaho
11
00:07.07
15. gorilla801
1
00:07.07
17. arod97
61
00:07.11
18. Dolphy 00:07.18
19. May John
90
00:07.96
20. AuroraSrc
22
00:08.82
This Week
1. Kenolo353
115
00:02.75
2. kroller
13
00:03.21
3. androcles 00:06.03
4. Hehaho
11
00:07.07
5. gorilla801
1
00:07.96
5. May John
90
00:07.96
7. CLAVDIVS
68
00:09.33
8. Koakuma
51
00:13.12
9. butaman 00:16.52
10. frett
19
00:16.79
11. HackMan
119
00:22.59
12. 3kariMonka 00:29.91
13. PurpleTurtle 00:32.10
14. ryrycrycry
24
01:00.77
15.--- empty -----:--
16.--- empty -----:--
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20.--- empty -----:--
Today
1. Kenolo353
115
00:03.25
2. gorilla801
1
00:08.76
3. CLAVDIVS
68
00:09.33
4. Koakuma
51
00:13.12
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
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
00:00.90
2. vowels
216
00:01.07
3. jaybrainer
246
00:01.16
4. numbrr
303
00:01.60
5. SunOceanBeach
260
00:01.73
6. sauceguardian
102
00:01.75
6. qqwref
264
00:01.75
8. EC31
23
00:01.79
9. sfumato
166
00:01.84
10. lmsc5k
65
00:01.91
AO5
1. Douglas Shamlin Jr.
715
00:00.96
2. vowels
216
00:01.44
3. jaybrainer
246
00:01.56
4. numbrr
303
00:01.73
5. qqwref
264
00:01.87
6. SunOceanBeach
260
00:01.90
7. lmsc5k
65
00:01.92
8. sauceguardian
102
00:01.94
9. Daiwie
94
00:01.97
10. sfumato
166
00:02.01
AO12
1. Douglas Shamlin Jr.
715
00:01.18
2. vowels
216
00:01.81
3. jaybrainer
246
00:02.06
4. numbrr
303
00:02.16
5. sauceguardian
102
00:02.28
6. SunOceanBeach
260
00:02.31
7. qqwref
264
00:02.40
8. lmsc5k
65
00:02.49
8. Daiwie
94
00:02.49
10. sfumato
166
00:02.51
Robots / programmatic solversinfo  
1.Paul Bismuth
1
00:02.066
2.kanaderu
1
00:03.677
3.liaohanlin888
1
00:09.128

* 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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2025-12-23 15:21:47

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