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
 00:05.42
2.Puzzleist
118
 00:07.22
3.paopumoon 00:07.67
4.Szysiu123
20
 00:08.42
5.PieterBasje
39
 00:08.76
6.crema
278
 00:08.82
7.FastFreddy
34
 00:08.97
8.spen sp2
71
 00:09.59
9.Dorice
276
 00:09.90
10.franxfsk 00:11.13
11.floomsi
18
 00:11.39
12.Matthew Zimmer
48
 00:11.58
13.gravitywind
82
 00:12.30
14.kennethaw88
165
 00:12.37
15.oversizedpixie
137
 00:13.34
16.dheodbgrr 00:13.89
17.Dimitri013
27
 00:14.79
18.mts55
51
 00:15.19
19.beckyhamp 00:16.03
20.dayoff 00:19.49
This Week
1.franxfsk 00:11.13
2.floomsi
18
 00:11.39
3.FastFreddy
34
 00:11.50
4.Matthew Zimmer
48
 00:11.58
5.gravitywind
82
 00:12.30
6.kennethaw88
165
 00:12.37
7.oversizedpixie
137
 00:13.34
8.dayoff 00:19.49
9.Tintin
46
 00:27.11
10.hppkss
40
 00:30.66
11.NattyPixie
5
 00:41.53
12.SuperBram
13
 00:51.70
13.DodgyRogd1 00:52.58
14.wobushizhenban 00:56.83
15.luciadm
4
 01:04.13
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Today
1.hppkss
40
 00:30.66
2.--- empty -----:--
3.--- empty -----:--
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5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
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11.--- empty -----:--
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MO3
1.nabi
92
 00:02.56
2.vowels
216
 00:02.65
3.BingBongBob
108
 00:03.23
4.numbrr
328
 00:03.38
5.jai22933
23
 00:03.44
6.ChillMinnow
14
 00:03.50
6.JZE
88
 00:03.50
8.ChillGorge
5
 00:03.53
9.CivicGoose
2
 00:03.66
10.jaybrainer
288
 00:04.10
AO5
1.nabi
92
 00:02.76
2.vowels
216
 00:02.87
3.BingBongBob
108
 00:03.43
4.ChillGorge
5
 00:03.55
5.numbrr
328
 00:03.60
6.ChillMinnow
14
 00:03.63
7.CivicGoose
2
 00:03.72
8.jai22933
23
 00:03.75
9.jaybrainer
288
 00:04.23
10.JZE
88
 00:04.43
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.CivicGoose
2
 00:04.09
6.ChillGorge
5
 00:04.17
7.numbrr
328
 00:04.55
8.jaybrainer
288
 00:04.95
9.Douglas Shamlin Jr.
724
 00:05.00
10.qqwref
266
 00:05.64
Robots / programmatic solversinfo  
1.dbut2
53
00:00.003
2.tlstyer
158
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.
You need to be logged in to track your averages

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