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
67
 00:25.26
2. llmt9
104
 00:26.00
3. Dorice
275
 00:35.21
4. spen sp2
69
 00:38.99
5. PheromoneJones 00:46.44
6. Kaci
12
 00:54.47
7. Viktor Herskedal
188
 01:04.27
8. Puninos
80
 01:18.32
9. p3nth3s1le4 01:27.90
10. mts55
48
 01:36.04
11. FastFreddy
31
 02:11.60
12. qobi
243
 02:20.26
13. magarner
70
 02:41.06
14. unko
33
 03:32.21
15. NoriFoggy 04:06.33
16. Tylerrhewitt
14
 04:17.15
17. zaan62
4
 04:37.60
18. Jippiee 04:52.29
19. pokosuk
41
 05:51.33
20. Uthor 24d 20:31:23.64
This Week
1. llmt9
104
 00:26.00
2. spen sp2
69
 00:38.99
3. Puninos
80
 01:18.32
4. NoriFoggy 04:06.33
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Today
1. Puninos
80
 01:18.32
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3.--- empty -----:--
4.--- empty -----:--
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MO3
1. Douglas Shamlin Jr.
724
 00:14.28
2. nabi
92
 00:15.73
3. numbrr
327
 00:18.32
4. BingBongBob
108
 00:19.82
5. vowels
216
 00:21.83
6. thall
67
 00:22.47
7. Joshua Zhang [Studen...
8
 00:22.57
8. Make
288
 00:23.69
9. jai22933
23
 00:24.54
10. daanbe
242
 00:25.00
AO5
1. Douglas Shamlin Jr.
724
 00:14.96
2. nabi
92
 00:16.49
3. numbrr
327
 00:19.21
4. BingBongBob
108
 00:19.98
5. vowels
216
 00:22.17
6. thall
67
 00:22.65
7. Joshua Zhang [Studen...
8
 00:23.06
8. Make
288
 00:24.78
9. jai22933
23
 00:25.09
10. qqwref
266
 00:26.34
AO12
1. Douglas Shamlin Jr.
724
 00:16.47
2. nabi
92
 00:19.36
3. numbrr
327
 00:20.92
4. BingBongBob
108
 00:21.05
5. vowels
216
 00:24.20
6. thall
67
 00:25.02
7. Make
288
 00:25.53
8. jai22933
23
 00:26.96
9. qqwref
266
 00:27.68
10. Joshua Zhang [Studen...
8
 00:28.84
Robots / programmatic solversinfo  
1.dbut2
50
00:00.003
2.tlstyer
156
00:00.007
3.jllachan00:00.483

* 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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