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. tuberculosis
106
 00:44.55
2. Vgcl3m 00:47.39
3. Goober 00:59.49
4. stemvork 01:06.18
5. SadSimo 01:12.20
6. Stefferox 01:19.20
7. SudokuFan
35
 01:20.93
8. tworivers
39
 01:21.94
9. ma2urka 01:32.50
10. Lespring22 01:39.48
11. yebbo 01:54.13
12. OliverA 02:15.21
13. pollyw 02:43.52
14. ktaklearns 02:46.83
15. Kenobi 02:51.82
16. vlash 03:04.70
17. spen sp2
24
 03:26.73
18. Lokiskind
1
 03:28.99
19. OGPartyGirl
25
 03:35.48
20. Beastinboston
50
 03:38.26
This Week
1. tuberculosis
106
 00:44.55
2. stemvork 01:06.18
3. SudokuFan
35
 01:20.93
4. tworivers
39
 01:21.94
5. Stefferox 01:31.77
6. yebbo 01:54.13
7. vlash 03:04.70
8. spen sp2
24
 03:31.11
9. Toonm 04:05.34
10. Tutututu 04:18.80
11. michigun 04:40.48
12. Soudruh 06:53.78
13. minionman 06:57.49
14. Yunteacher
28
 06:59.66
15. c00lc4tc4m
9
 08:19.08
16. puzzQ 08:21.02
17. Rikky
5
 13:02.36
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Today
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MO3
1. nabi
92
 00:19.68
2. numbrr
314
 00:24.26
3. BingBongBob
108
 00:26.71
4. vowels
216
 00:27.32
5. Make
279
 00:30.39
6. qqwref
266
 00:31.29
7. IzAlexandre2
114
 00:35.67
8. distracted
143
 00:36.34
9. LittlePiggy
83
 00:36.88
10. PuzzleMaestro
91
 00:37.26
AO5
1. nabi
92
 00:19.80
2. numbrr
314
 00:24.89
3. vowels
216
 00:29.42
4. Make
279
 00:32.49
5. qqwref
266
 00:32.88
6. BingBongBob
108
 00:32.92
7. IzAlexandre2
114
 00:37.25
8. SilverHawk
216
 00:37.63
9. vx14
181
 00:38.43
10. LittlePiggy
83
 00:38.67
AO12
1. nabi
92
 00:21.95
2. numbrr
314
 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
279
 00:39.22
8. vx14
181
 00:41.99
9. IzAlexandre2
114
 00:43.70
10. LittlePiggy
83
 00:44.27
Robots / programmatic solversinfo  
1.tlstyer
143
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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