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. thall
65
 01:18.41
2. nallie
38
 01:46.27
3. spen sp2
63
 02:17.76
4. Lespring22 02:19.66
5. Lua
164
 02:23.61
6. tworivers
44
 03:28.60
7. css861 03:34.17
8. Puninos
73
 03:38.84
9. Beastinboston
61
 04:11.32
10. pythagora 04:14.72
11. mmmoongoddess
150
 04:42.10
12. pandabiubiu
102
 04:48.91
13. qobi
240
 05:16.04
14. Silversight01
33
 05:44.25
15. Ernie A.
109
 06:24.53
16. Wuni14 07:20.41
17. frtnc
117
 08:05.25
18. sandrovka
20
 08:12.94
19. khwa
1
 09:22.92
20. aguacate
10
 10:57.02
This Week
1. nallie
38
 01:46.27
2. css861 03:34.17
3. Puninos
73
 03:38.84
4. pythagora 05:06.08
5. Silversight01
33
 05:44.25
6. Ernie A.
109
 06:24.53
7. Wuni14 07:20.41
8. frtnc
117
 08:05.25
9. sandrovka
20
 08:12.94
10. Larry the pirate
136
 11:19.07
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Today
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20.--- empty -----:--
MO3
1. numbrr
321
 00:52.76
2. nabi
92
 00:53.02
3. Douglas Shamlin Jr.
722
 00:56.25
4. Make
286
 00:59.67
5. BingBongBob
108
 01:04.66
6. qqwref
266
 01:06.02
7. SilverHawk
216
 01:06.31
8. vx14
184
 01:09.65
9. daanbe
238
 01:10.21
10. vowels
216
 01:10.50
AO5
1. numbrr
321
 00:54.62
2. nabi
92
 00:55.43
3. Douglas Shamlin Jr.
722
 00:58.42
4. Make
286
 01:01.97
5. BingBongBob
108
 01:05.47
6. qqwref
266
 01:06.02
7. SilverHawk
216
 01:08.43
8. vx14
184
 01:09.65
9. daanbe
238
 01:12.46
10. vowels
216
 01:13.67
AO12
1. nabi
92
 00:57.30
2. numbrr
321
 00:57.34
3. Douglas Shamlin Jr.
722
 01:05.26
4. Make
286
 01:06.53
5. qqwref
266
 01:12.64
6. daanbe
238
 01:14.50
7. vx14
184
 01:14.92
8. SilverHawk
216
 01:17.31
9. boru
131
 01:21.50
10. IzAlexandre2
114
 01:23.00
Robots / programmatic solversinfo  
1.dbut2
41
00:00.003
2.tlstyer
151
00:00.007
3.jllachan00:00.495

* 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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