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. rekted 02:08.43
2. Lespring22 02:10.08
3. Taco1717
73
 02:27.51
4. OliverA 02:45.33
5. Liza94You
2
 02:53.38
6. pandabiubiu
96
 02:57.25
7. mmmoongoddess
146
 03:19.21
8. OGPartyGirl
20
 04:16.78
9. Grace Mayne
25
 04:20.25
10. spen sp2
21
 04:27.89
11. etgl
132
 05:46.57
12. Iceberg9 05:47.76
13. css861 05:52.65
14. sourapplebaby
12
 05:59.21
15. Beastinboston
45
 06:18.65
16. lauraapzz
80
 08:27.51
17. nerdvert
99
 09:13.68
18. hazelmus
16
 09:17.20
19. Menna
7
 10:14.90
20. AnnaCL8
32
 10:23.99
This Week
1. rekted 02:08.43
2. pandabiubiu
96
 03:04.63
3. mmmoongoddess
146
 03:53.92
4. Iceberg9 05:47.76
5. sourapplebaby
12
 05:59.98
6. lauraapzz
80
 08:36.97
7. AnnaCL8
32
 10:23.99
8. Thegroover 11:07.70
9. Valter Correia
5
 11:57.23
10. Uvited 14:41.23
11. KTSH4
4
 14:49.81
12. tortii 23:06.06
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Today
1. pandabiubiu
96
 03:04.63
2. mmmoongoddess
146
 03:53.92
3.--- empty -----:--
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
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MO3
1. nabi
92
 00:48.32
2. numbrr
310
 00:49.33
3. Make
279
 01:01.00
4. qqwref
266
 01:11.83
5. Douglas Shamlin Jr.
718
 01:22.40
6. vx14
179
 01:23.64
7. SilverHawk
216
 01:24.09
8. IzAlexandre2
114
 01:24.53
9. thrasymachus
69
 01:27.97
10. beatrixwashere
115
 01:29.37
AO5
1. nabi
92
 00:48.32
2. numbrr
310
 00:50.66
3. Make
279
 01:00.81
4. qqwref
266
 01:09.90
5. Douglas Shamlin Jr.
718
 01:24.65
6. SilverHawk
216
 01:25.86
7. IzAlexandre2
114
 01:27.31
8. vx14
179
 01:29.60
9. LittlePiggy
83
 01:33.20
10. boru
125
 01:33.50
AO12
1. nabi
92
 00:52.40
2. numbrr
310
 00:57.75
3. Make
279
 01:08.18
4. qqwref
266
 01:14.36
5. SilverHawk
216
 01:28.95
6. IzAlexandre2
114
 01:32.30
7. vx14
179
 01:34.66
8. thrasymachus
69
 01:37.66
9. LittlePiggy
83
 01:39.93
10. TGOokami
166
 01:40.60
Robots / programmatic solversinfo  
1.tlstyer
142
00:00.009
2.jllachan00:00.492
3.BertinSylux98
34
00:01.359

* 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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