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. deadimmortal
186
 00:00.32
2. thall
66
 00:04.64
3. Dorice
272
 00:05.59
4. llmt9
102
 00:05.74
5. nallie
45
 00:06.98
6. Lore1 00:08.73
7. vlash 00:09.29
8. eliii
7
 00:09.38
9. Kutner17
158
 00:10.75
10. stemvork 00:11.74
11. IzAlexandre2
114
 00:12.50
12. css861 00:13.94
12. OliverA 00:13.94
14. Menna
27
 00:14.30
15. Macy
63
 00:14.44
16. niqnna
18
 00:14.76
17. Hahllyicssa
46
 00:15.77
18. sandrovka
27
 00:17.21
19. IanTheG
18
 00:18.20
20. epinu
139
 00:19.13
This Week
1. deadimmortal
186
 00:00.32
2. Dorice
272
 00:05.59
3. llmt9
102
 00:06.69
4. Lore1 00:13.09
5. Macy
63
 00:14.44
6. mamawilma
103
 00:22.88
7. Penroze
101
 00:24.78
8. spiccy
49
 00:24.82
9. Flowzaaa 00:24.86
10. ykpcntrk 00:29.99
11. A3ngus 00:35.73
12. Tintin
35
 00:36.48
13. sandrovka
27
 00:51.95
14. YesShalashka
21
 10:53.11
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Today
1. Lore1 00:13.09
2.--- empty -----:--
3.--- empty -----:--
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 -----:--
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20.--- empty -----:--
MO3
1. deadimmortal
186
 00:00.33
2. nabi
92
 00:02.56
3. vowels
216
 00:02.65
4. BingBongBob
108
 00:03.23
5.anonymous
322
 00:03.38
6. jai22933
23
 00:03.44
7.anonymous
14
 00:03.50
7. JZE
88
 00:03.50
9.anonymous
5
 00:03.53
10.anonymous
2
 00:03.66
AO5
1. deadimmortal
186
 00:00.40
2. nabi
92
 00:02.76
3. vowels
216
 00:02.87
4. BingBongBob
108
 00:03.43
5.anonymous
5
 00:03.55
6.anonymous
322
 00:03.60
7.anonymous
14
 00:03.63
8.anonymous
2
 00:03.72
9. jai22933
23
 00:03.75
10. JZE
88
 00:04.43
AO12
1. deadimmortal
186
 00:01.82
2. nabi
92
 00:02.96
3. vowels
216
 00:03.32
4. BingBongBob
108
 00:03.94
5. jai22933
23
 00:04.04
6.anonymous
2
 00:04.09
7.anonymous
5
 00:04.17
8.anonymous
322
 00:04.55
9. Douglas Shamlin Jr.
722
 00:05.00
10. qqwref
266
 00:05.64
Robots / programmatic solversinfo  
1.dbut2
44
00:00.003
2.tlstyer
151
00:00.006
3.jllachan00:00.493

* 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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