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. Eskimosnake
114
 00:04.76
2. llmt9
97
 00:05.25
3. Kukko
178
 00:05.88
4. MushroomsCavern
95
 00:06.55
5. OGPartyGirl
56
 00:07.52
6. CroMa
95
 00:08.58
7. Ludovraint
10
 00:08.75
8. Annerose
22
 00:08.97
9. xc0xupx
49
 00:09.27
10. eliii 00:09.36
11. 3blue1blue
8
 00:09.39
12. SWICT
70
 00:10.61
13. vlash 00:11.04
14. leo1999
24
 00:11.16
15. Kevinw0lf 00:11.52
16. Harry_Canyon
144
 00:11.97
17. nastya 00:12.06
18. Reticle
133
 00:12.09
19. redbag
31
 00:13.89
20. kolossikalmari
40
 00:14.05
This Week
1. Kukko
178
 00:05.88
2. llmt9
97
 00:06.23
3. OGPartyGirl
56
 00:07.52
4. Annerose
22
 00:08.97
5. eliii 00:09.36
6. redbag
31
 00:13.89
7. Techloart
36
 00:18.41
8. paopumoon 00:18.95
9. NickB15 00:19.51
10. Celina
3
 00:20.11
11. johnbob 00:25.14
12. StarrySkies
2
 00:27.05
13. 121abc
12
 00:34.95
14. stevo 00:36.87
15. scoutwhit
3
 00:37.07
16. Lites0 00:37.31
17. Menna
8
 00:37.32
18. Parker M
19
 00:41.04
19. midaz427
2
 00:43.33
20. zuguruz
1
 00:45.60
Today
1. paopumoon 00:18.95
2. scoutwhit
3
 00:37.07
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.
721
 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.
721
 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.
721
 00:05.00
9. qqwref
266
 00:05.64
10. Make
283
 00:05.96
Robots / programmatic solversinfo  
1.tlstyer
150
00:00.006
2.jllachan00:00.493
3.BertinSylux98
34
00:00.642

* 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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