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.llmt9
104
 00:29.15
2.Kukko
190
 00:34.33
3.spen sp2
71
 00:35.89
4.Dorice
276
 00:37.87
5.Lespring22 00:50.95
6.SA5838 01:01.71
7.crema
278
 01:02.92
8.nonofun1
44
 01:08.29
9.floomsi
20
 01:17.99
10.wiiisiii
74
 01:33.74
11.Lokiskind
1
 01:39.84
12.Ernie A.
115
 01:44.17
13.huohuo2004
62
 01:45.72
14.mts55
52
 01:52.86
15.frafrimb 02:13.80
16.보믈고
51
 02:25.50
17.junkdrawer 02:29.25
18.sgychen6
113
 02:31.55
19.bellsdotcom 03:10.24
20.gravitywind
82
 03:24.32
This Week
1.Dorice
276
 00:37.87
2.spen sp2
71
 00:40.74
3.nonofun1
44
 01:08.29
4.floomsi
20
 01:17.99
5.SA5838 01:22.18
6.wiiisiii
74
 01:33.74
7.Ernie A.
115
 01:44.17
8.huohuo2004
62
 01:45.72
9.mts55
52
 01:52.86
10.junkdrawer 02:29.25
11.Lokiskind
1
 05:11.82
12.DodgyRogd1 07:30.18
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Today
1.floomsi
20
 01:17.99
2.nonofun1
44
 01:19.70
3.Ernie A.
115
 01:44.17
4.huohuo2004
62
 01:45.72
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
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11.--- empty -----:--
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MO3
1.nabi
92
 00:18.24
2.numbrr
329
 00:18.74
3.vowels
216
 00:18.90
4.BingBongBob
108
 00:22.37
5.Make
288
 00:24.02
6.qqwref
266
 00:24.40
7.jaybrainer
288
 00:25.98
8.jai22933
23
 00:26.58
9.SilverHawk
216
 00:26.59
10.daanbe
243
 00:27.82
AO5
1.nabi
92
 00:19.01
2.vowels
216
 00:20.64
3.numbrr
329
 00:20.89
4.BingBongBob
108
 00:23.76
5.Make
288
 00:24.49
6.qqwref
266
 00:26.89
7.daanbe
243
 00:27.82
8.SilverHawk
216
 00:29.07
9.jaybrainer
288
 00:29.42
10.IzAlexandre2
114
 00:31.39
AO12
1.nabi
92
 00:20.19
2.numbrr
329
 00:24.88
3.vowels
216
 00:26.82
4.Make
288
 00:27.08
5.BingBongBob
108
 00:27.58
6.qqwref
266
 00:29.11
7.SilverHawk
216
 00:31.29
8.jaybrainer
288
 00:31.44
9.IzAlexandre2
114
 00:32.79
10.jai22933
23
 00:34.22
Robots / programmatic solversinfo  
1.tlstyer
158
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.
You need to be logged in to track your averages

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