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
62
 00:24.94
2. yebbo 00:36.22
3. Vgcl3m 00:37.47
4. tuberculosis
106
 00:40.20
5. MushroomsCavern
71
 00:45.17
6. stemvork 00:45.40
7. OGPartyGirl
29
 00:47.57
8. spen sp2
37
 00:51.64
9. tworivers
40
 01:02.70
10. Beastinboston
52
 01:12.32
11. SudokuFan
36
 01:15.75
12. Lua
154
 01:24.41
13. Szurii_PL
7
 01:27.73
14. vichibrax 01:28.59
15. 67676
15
 01:28.93
16. Kutner17
154
 01:32.88
17. Jorjess
30
 01:34.35
18. Availle 01:34.78
19. vlash 01:39.92
20. Fynnster48 01:51.71
This Week
1. yebbo 00:36.22
2. spen sp2
37
 00:51.64
3. tworivers
40
 01:02.70
4. Fynnster48 01:51.71
5. StangBecak 01:58.22
6. Jorjess
30
 02:19.24
7. Availle 02:27.78
8. jos1eo
1
 02:47.23
9. Grymhar 03:10.55
10. MacLain 03:27.17
11. Thegroover 04:01.79
12. madingdong 05:38.00
13. mch123 05:39.45
14. GuianaCutie
2
 06:27.65
15. Uthor 24d 20:31:23.64
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. yebbo 00:42.80
2. Jorjess
30
 02:34.10
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. Douglas Shamlin Jr.
719
 00:14.28
2. nabi
92
 00:15.73
3. numbrr
315
 00:18.32
4. BingBongBob
108
 00:19.82
5. vowels
216
 00:21.83
6. Joshua Zhang [Studen...
8
 00:22.57
7. Make
280
 00:23.69
8. jai22933
23
 00:24.54
9. thall
62
 00:25.10
10. qqwref
266
 00:25.55
AO5
1. Douglas Shamlin Jr.
719
 00:14.96
2. nabi
92
 00:16.49
3. numbrr
315
 00:19.21
4. BingBongBob
108
 00:19.98
5. vowels
216
 00:22.17
6. Joshua Zhang [Studen...
8
 00:23.06
7. Make
280
 00:24.78
8. jai22933
23
 00:25.09
9. qqwref
266
 00:26.34
10. thall
62
 00:26.44
AO12
1. Douglas Shamlin Jr.
719
 00:16.47
2. nabi
92
 00:19.36
3. numbrr
315
 00:20.92
4. BingBongBob
108
 00:21.05
5. vowels
216
 00:24.20
6. Make
280
 00:25.53
7. jai22933
23
 00:26.96
8. qqwref
266
 00:27.68
9. thall
62
 00:28.83
10. Joshua Zhang [Studen...
8
 00:28.84
Robots / programmatic solversinfo  
1.tlstyer
144
00:00.007
2.jllachan00:00.483
3.BertinSylux98
34
00:00.835

* 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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