Hitori


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Hitori is a logic puzzle with simple rules and challenging solutions.

The rules of Hitori are simple:
You have to shade some of the cells of the grid according to the rules:
- No number should appear unshaded more than once in a row or a column.
- 2 black cells cannot be adjacent horizontally or vertically.
- All non-shaded cells should be connected in a single group by vertical or horizontal motion.

Video Tutorial
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Hitori


5x5 Easy Hitori | 5x5 Normal Hitori | 5x5 Hard Hitori | 10x10 Easy Hitori | 10x10 Normal Hitori | 10x10 Hard Hitori | 15x15 Easy Hitori | 15x15 Normal Hitori | 15x15 Hard Hitori | 20x20 Easy Hitori | 20x20 Normal Hitori | 20x20 Hard Hitori

New Puzzle
This Month
1. boru
128
 00:03.92
2. thall
62
 00:05.82
3. llmt9
94
 00:06.13
4. Kimon 00:06.54
5. Alexia :)
127
 00:09.37
6. vlash 00:10.49
7. stemvork 00:10.99
8. leo1999
22
 00:11.16
9. Harry_Canyon
142
 00:11.70
10. JimWeaver
10
 00:11.84
11. ChumleySmythe 00:13.14
12. FengningYang
24
 00:13.58
13. Availle 00:14.05
14. 贝壳
10
 00:14.48
15. Kenobi 00:14.96
16. V_Perm
14
 00:15.07
17. Reticle
131
 00:15.39
18. lynnwhimsical
7
 00:15.70
19. cz123 00:16.09
20. yzl497
30
 00:16.20
This Week
1. boru
128
 00:03.92
2. llmt9
94
 00:06.74
3. Alexia :)
127
 00:09.37
4. vlash 00:10.95
5. leo1999
22
 00:11.16
6. Harry_Canyon
142
 00:11.97
7. eliii 00:16.22
8. grimmgirlfandom
170
 00:18.52
9. viysid
24
 00:19.32
10. mamawilma
91
 00:19.73
11. Celina
3
 00:19.96
12. battlecruiser12 00:20.69
13. Satake
19
 00:20.78
14. dinaki
15
 00:22.48
15. metoxys
121
 00:27.14
16. MacLain 00:31.29
17. leianimelover
3
 00:32.60
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. llmt9
94
 00:07.78
2. Harry_Canyon
142
 00:11.97
3. dinaki
15
 00:22.48
4.--- empty -----:--
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. nabi
92
 00:02.56
2. vowels
216
 00:02.65
3. BingBongBob
108
 00:03.23
4. numbrr
318
 00:03.38
5. jai22933
23
 00:03.44
6.anonymous
14
 00:03.50
6. JZE
87
 00:03.50
8.anonymous
5
 00:03.53
9.anonymous
2
 00:03.66
10. Douglas Shamlin Jr.
720
 00:04.17
AO5
1. nabi
92
 00:02.76
2. vowels
216
 00:02.87
3. BingBongBob
108
 00:03.43
4.anonymous
5
 00:03.55
5. numbrr
318
 00:03.60
6.anonymous
14
 00:03.63
7.anonymous
2
 00:03.72
8. jai22933
23
 00:03.75
9. JZE
87
 00:04.43
10. Douglas Shamlin Jr.
720
 00:04.45
AO12
1. nabi
92
 00:02.96
2. vowels
216
 00:03.32
3. BingBongBob
108
 00:03.94
4. jai22933
23
 00:04.04
5.anonymous
2
 00:04.09
6.anonymous
5
 00:04.17
7. numbrr
318
 00:04.55
8. Douglas Shamlin Jr.
720
 00:05.00
9. qqwref
266
 00:05.64
10. Make
281
 00:05.96
Robots / programmatic solversinfo  
1.tlstyer
148
00:00.006
2.jllachan00:00.493
3.BertinSylux98
34
00:00.642

* 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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