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. ypw19
91
 00:03.66
2. Larahr 00:05.95
3. llmt9
92
 00:06.77
4. platiumshe
7
 00:06.91
5. puppy942
10
 00:07.98
6. iqyMeow 00:08.08
7. chunguslol
2
 00:08.17
8. HarryAstaryo 00:08.54
9. vichibrax 00:09.07
10. MushroomsCavern
68
 00:09.22
11. vlash 00:09.49
12. CroMa
90
 00:10.00
13. dynesonne 00:10.24
14. Scr33n 00:10.87
15. OGPartyGirl
28
 00:10.93
16. stemvork 00:10.99
17. 67676
12
 00:11.51
18. spen sp2
26
 00:11.66
19. zuguruz
1
 00:12.28
20. yanxiran 00:12.51
This Week
1. MushroomsCavern
68
 00:09.52
2. dynesonne 00:10.24
3. vlash 00:10.75
4. Scr33n 00:10.87
5. stemvork 00:10.99
6. 67676
12
 00:11.51
7. h7027 00:12.64
8. ChumleySmythe 00:12.66
9. ChiefOsceola 00:17.05
10. Lenina1
5
 00:17.37
11. Thegroover 00:19.26
12. NickB15 00:20.17
13. tytytyt 00:25.43
14. Kanjana04
2
 00:28.12
15. magaso16
103
 00:33.65
16. laipi 00:37.15
17. miwi
2
 00:38.25
18. marialianz
6
 00:52.88
19. bayzeka
3
 00:56.62
20. TheMisteriousP
70
 01:07.79
Today
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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
314
 00:03.38
5. jai22933
23
 00:03.44
6.anonymous
14
 00:03.50
6. JZE
87
 00:03.50
8.anonymous
5
 00:03.53
9.anonymous
2
 00:03.66
10. Douglas Shamlin Jr.
719
 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
314
 00:03.60
6.anonymous
14
 00:03.63
7.anonymous
2
 00:03.72
8. jai22933
23
 00:03.75
9. JZE
87
 00:04.43
10. Douglas Shamlin Jr.
719
 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
314
 00:04.55
8. Douglas Shamlin Jr.
719
 00:05.00
9. qqwref
266
 00:05.64
10. Make
279
 00:05.96
Robots / programmatic solversinfo  
1.tlstyer
144
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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