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. deadimmortal
190
 00:00.32
2. Dorice
273
 00:05.59
3. llmt9
103
 00:06.69
4. paopumoon 00:07.37
5. eliii
7
 00:09.38
6. Lore1 00:09.78
7. vichibrax 00:09.79
8. 67676
19
 00:10.47
9. effek05
68
 00:11.00
10. stemvork 00:11.74
11. IzAlexandre2
114
 00:12.50
12. IanTheG
25
 00:12.57
13. GoldChoco36
170
 00:13.05
14. Oryn
190
 00:13.98
15. Macy
64
 00:14.44
16. Hahllyicssa
48
 00:15.75
17. lv1208
7
 00:16.93
18. spen sp2
68
 00:18.26
19. ChiefOsceola 00:19.08
20. 90josungs
3
 00:20.97
This Week
1. paopumoon 00:07.37
2. vichibrax 00:09.79
3. 67676
19
 00:10.47
4. effek05
68
 00:11.00
5. IanTheG
25
 00:12.57
6. GoldChoco36
170
 00:13.05
7. lv1208
7
 00:16.93
8. spen sp2
68
 00:18.26
9. lynnwhimsical
7
 00:24.78
10. SergioR
26
 00:25.61
11. 90josungs
3
 00:31.09
12. maxio6910
1
 00:41.59
13. oracle3000
13
 01:00.60
14. Player103
2
 2d 20:24:05.24
15.--- empty -----:--
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18.--- empty -----:--
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Today
1. vichibrax 00:09.79
2. GoldChoco36
170
 00:13.05
3. SergioR
26
 00:25.61
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. deadimmortal
190
 00:00.33
2. nabi
92
 00:02.56
3. vowels
216
 00:02.65
4. BingBongBob
108
 00:03.23
5. numbrr
323
 00:03.38
6. jai22933
23
 00:03.44
7.anonymous
14
 00:03.50
7. JZE
88
 00:03.50
9.anonymous
5
 00:03.53
10.anonymous
2
 00:03.66
AO5
1. deadimmortal
190
 00:00.40
2. nabi
92
 00:02.76
3. vowels
216
 00:02.87
4. BingBongBob
108
 00:03.43
5.anonymous
5
 00:03.55
6. numbrr
323
 00:03.60
7.anonymous
14
 00:03.63
8.anonymous
2
 00:03.72
9. jai22933
23
 00:03.75
10. jaybrainer
278
 00:04.23
AO12
1. deadimmortal
190
 00:01.82
2. nabi
92
 00:02.96
3. vowels
216
 00:03.32
4. BingBongBob
108
 00:03.94
5. jai22933
23
 00:04.04
6.anonymous
2
 00:04.09
7.anonymous
5
 00:04.17
8. numbrr
323
 00:04.55
9. jaybrainer
278
 00:04.95
10. Douglas Shamlin Jr.
723
 00:05.00
Robots / programmatic solversinfo  
1.dbut2
45
00:00.003
2.tlstyer
153
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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