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. numbrr
315
 00:16.96
2. yebbo 00:42.73
3. spen sp2
39
 00:44.94
4. stemvork 00:45.78
5. OGPartyGirl
29
 00:47.78
6. Lespring22 00:50.79
7. MushroomsCavern
72
 00:51.95
8. vicadancerr
27
 00:54.62
9. SudokuFan
36
 00:57.51
10. tworivers
40
 00:58.33
11. nerdvert
100
 01:02.56
12. SA5838 01:16.78
13. nonofun1
40
 01:24.56
14. vichibrax 01:34.66
15. Beastinboston
52
 01:44.11
16. 67676
15
 01:44.50
17. Kenobi 01:54.60
18. silliputty
79
 02:05.03
19. floomsi
17
 02:06.62
20. Hedran
104
 02:07.23
This Week
1. spen sp2
39
 00:44.94
2. yebbo 00:46.85
3. StangBecak 02:22.27
4. DougP 02:49.36
5. poopi 03:16.84
6. meneerH
19
 03:41.29
7. THEmary
5
 03:56.68
8. GuianaCutie
2
 05:43.34
9. Julian2253
2
 08:23.88
10. fvickers05 15:53.11
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Today
1. yebbo 00:47.73
2.--- empty -----:--
3.--- empty -----:--
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5.--- empty -----:--
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8.--- empty -----:--
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MO3
1. nabi
92
 00:18.24
2. numbrr
315
 00:18.74
3. vowels
216
 00:18.90
4. BingBongBob
108
 00:22.37
5. Make
280
 00:24.02
6. qqwref
266
 00:24.40
7. jai22933
23
 00:26.58
8. SilverHawk
216
 00:26.59
9. IzAlexandre2
114
 00:29.87
10. boru
127
 00:31.30
AO5
1. nabi
92
 00:19.01
2. vowels
216
 00:20.64
3. numbrr
315
 00:20.89
4. BingBongBob
108
 00:23.76
5. Make
280
 00:24.49
6. qqwref
266
 00:26.89
7. SilverHawk
216
 00:29.07
8. IzAlexandre2
114
 00:31.39
9. boru
127
 00:31.71
10. jai22933
23
 00:31.97
AO12
1. nabi
92
 00:20.19
2. numbrr
315
 00:24.88
3. vowels
216
 00:26.82
4. Make
280
 00:27.08
5. BingBongBob
108
 00:27.58
6. qqwref
266
 00:29.11
7. SilverHawk
216
 00:31.29
8. IzAlexandre2
114
 00:32.79
9. jai22933
23
 00:34.22
10. boru
127
 00:37.05
Robots / programmatic solversinfo  
1.tlstyer
145
00:00.008
2.jllachan00:00.491
3.BertinSylux98
34
00:00.858

* 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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