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. JonasE
1
 00:04.75
2. M1LE5
2
 00:05.93
3. llmt9
100
 00:06.66
4. nallie
37
 00:07.43
5. eliii
6
 00:08.59
6. NghiVo
61
 00:11.40
7. avibdake 00:11.66
8. TahtVarisi 00:11.90
9. huohuo2004
42
 00:12.05
10. OliverA 00:12.16
11. NaluXV1 00:12.28
12. paopumoon 00:12.40
13. khwa
1
 00:12.42
14. tekgen
2
 00:14.25
15. keremkirantepe 00:14.80
16. Blackberry
21
 00:15.22
17. Hahllyicssa
39
 00:15.89
18. Sophiewangwang 00:19.74
19. Achlsy 00:19.99
20. Toonm 00:20.14
This Week
1. nallie
37
 00:07.43
2. NghiVo
61
 00:11.40
3. avibdake 00:11.66
4. huohuo2004
42
 00:12.05
5. OliverA 00:12.16
6. khwa
1
 00:15.62
7. Hahllyicssa
39
 00:15.93
8. Sophiewangwang 00:19.74
9. Achlsy 00:19.99
10. Toonm 00:20.14
11. cozyjaewha 00:20.19
12. ailisilob 00:22.51
13. Chalk
118
 00:25.59
13. sandrovka
18
 00:25.59
15. Tintin
32
 00:49.95
16. mothcolada
13
 00:53.56
17. Scr33n 24d 20:31:23.64
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. nallie
37
 00:07.43
2. avibdake 00:11.66
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 -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
MO3
1. nabi
92
 00:02.56
2. vowels
216
 00:02.65
3. BingBongBob
108
 00:03.23
4. numbrr
321
 00:03.38
5. jai22933
23
 00:03.44
6.anonymous
14
 00:03.50
6. JZE
88
 00:03.50
8.anonymous
5
 00:03.53
9.anonymous
2
 00:03.66
10. Douglas Shamlin Jr.
722
 00:04.17
AO5
1. nabi
92
 00:02.76
2. vowels
216
 00:02.87
3. BingBongBob
108
 00:03.43
4.anonymous
5
 00:03.55
5. numbrr
321
 00:03.60
6.anonymous
14
 00:03.63
7.anonymous
2
 00:03.72
8. jai22933
23
 00:03.75
9. JZE
88
 00:04.43
10. Douglas Shamlin Jr.
722
 00:04.45
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.anonymous
2
 00:04.09
6.anonymous
5
 00:04.17
7. numbrr
321
 00:04.55
8. Douglas Shamlin Jr.
722
 00:05.00
9. qqwref
266
 00:05.64
10. Make
285
 00:05.96
Robots / programmatic solversinfo  
1.dbut2
41
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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