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. gtkrouwel
136
 00:28.26
2. llmt9
97
 00:35.41
3. Kukko
178
 00:35.77
4. MushroomsCavern
95
 00:37.27
5. OGPartyGirl
56
 00:43.65
6. Adorae
88
 00:44.99
7. spen sp2
50
 00:53.41
8. nonofun1
41
 00:56.57
9. Annerose
22
 01:17.38
10. daebreaker 01:27.01
11. Malahitori
22
 01:41.82
12. SA5838 01:48.92
13. Iceberg9 01:54.64
14. Eskimosnake
114
 02:24.88
15. minionman 02:36.83
16. Lokiskind
1
 02:37.12
17. floomsi
17
 02:49.69
18. mielan1 02:50.47
19. DougP 02:52.01
20. mamawilma
94
 03:02.22
This Week
1. gtkrouwel
136
 00:28.26
2. Kukko
178
 00:35.77
3. OGPartyGirl
56
 00:43.65
4. nonofun1
41
 00:56.57
5. Annerose
22
 01:17.38
6. SA5838 01:51.37
7. Lokiskind
1
 02:37.12
8. mielan1 02:50.47
9. mamawilma
94
 03:02.22
10. frtnc
114
 03:08.67
11. THEmary
7
 03:29.60
12. almalesbiana 04:48.11
13. yosiaki
109
 06:17.13
14. Puninos
71
 07:00.99
15. VersionLP 23:58.15
16. xalodo 14d 22:06:26.46
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. nonofun1
41
 01:14.10
2. THEmary
7
 03:32.03
3. mielan1 03:39.02
4. mamawilma
94
 06:06.39
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
 00:18.24
2. numbrr
321
 00:18.74
3. vowels
216
 00:18.90
4. BingBongBob
108
 00:22.37
5. Make
283
 00:24.02
6. qqwref
266
 00:24.40
7. jai22933
23
 00:26.58
8. SilverHawk
216
 00:26.59
9. daanbe
237
 00:27.82
10. IzAlexandre2
114
 00:29.87
AO5
1. nabi
92
 00:19.01
2. vowels
216
 00:20.64
3. numbrr
321
 00:20.89
4. BingBongBob
108
 00:23.76
5. Make
283
 00:24.49
6. qqwref
266
 00:26.89
7. daanbe
237
 00:27.82
8. SilverHawk
216
 00:29.07
9. IzAlexandre2
114
 00:31.39
10. boru
131
 00:31.71
AO12
1. nabi
92
 00:20.19
2. numbrr
321
 00:24.88
3. vowels
216
 00:26.82
4. Make
283
 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. daanbe
237
 00:34.56
Robots / programmatic solversinfo  
1.tlstyer
150
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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