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.

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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. lukegr 00:32.15
2. llmt9
102
 00:35.57
3. nallie
45
 00:44.11
4. Lore1 00:44.68
5. spen sp2
64
 00:54.29
6. stemvork 01:02.85
7. ma2urka 01:13.11
8. Stefferox 01:17.35
9. Beastinboston
64
 01:43.44
10. tworivers
44
 01:47.63
11. junkdrawer 02:14.20
12. mielan1 02:17.75
13. Toonm 02:38.55
14. mamawilma
103
 02:49.28
15. Lokiskind
1
 02:50.65
16. lauraapzz
86
 02:52.09
17. nosenugget
146
 03:15.60
18. Tintin
35
 04:00.75
19. pollyw 04:05.03
20. LrCaWm 04:38.24
This Week
1. lukegr 00:32.15
2. llmt9
102
 00:35.57
3. spen sp2
64
 00:54.29
4. stemvork 01:26.60
5. Stefferox 01:29.83
6. mielan1 02:41.96
7. lauraapzz
86
 02:52.09
8. tworivers
44
 02:58.84
9. Toonm 03:56.95
10. shoner
7
 06:52.48
11. Tintin
35
 09:33.68
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. lukegr 00:36.89
2. stemvork 01:26.60
3. mielan1 02:48.07
4. Toonm 03:56.95
5. Tintin
35
 24:08:53.01
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
 00:19.68
2.anonymous
322
 00:24.26
3. BingBongBob
108
 00:26.71
4. vowels
216
 00:27.32
5. Make
287
 00:30.39
6. qqwref
266
 00:31.29
7. daanbe
240
 00:33.17
8. IzAlexandre2
114
 00:35.67
9. distracted
147
 00:36.34
10. LittlePiggy
83
 00:36.88
AO5
1. nabi
92
 00:19.80
2.anonymous
322
 00:24.89
3. vowels
216
 00:29.42
4. Make
287
 00:32.49
5. qqwref
266
 00:32.88
6. BingBongBob
108
 00:32.92
7. daanbe
240
 00:36.63
8. IzAlexandre2
114
 00:37.25
9. SilverHawk
216
 00:37.63
10. vx14
184
 00:38.43
AO12
1. nabi
92
 00:21.95
2.anonymous
322
 00:28.68
3. BingBongBob
108
 00:36.42
4. qqwref
266
 00:36.65
5. vowels
216
 00:37.84
6. SilverHawk
216
 00:38.89
7. Make
287
 00:39.22
8. vx14
184
 00:41.99
9. IzAlexandre2
114
 00:43.70
10. LittlePiggy
83
 00:44.27
Robots / programmatic solversinfo  
1.tlstyer
151
00:00.007
2.jllachan00:00.491
3.BertinSylux98
34
00:00.867

* 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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