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

This Month
1. thall
42
00:42.75
2. llmt9
87
00:51.55
3. Educated-cat
32
01:10.74
4. slyguy519
59
01:20.42
5. HackMan
116
01:20.64
6. fishysua
152
01:26.93
7. Jorjess
20
01:32.15
8. spen sp2
16
01:42.88
9. olwd
40
01:46.65
10. limima 02:07.56
11. xilli 02:11.22
12. FunAcroFly
104
02:21.88
13. Krikke1979
15
02:25.87
14. Fjznbeinfnn 02:59.97
15. Burrito12345 03:16.02
16. Wuni14 03:19.85
17. KingHeeSu
6
03:58.44
18. saolei6404
35
04:10.82
19. pokosuk
37
05:00.05
20. Gage Williams
27
06:02.20
This Week
1. HackMan
116
01:22.24
2. fishysua
152
01:26.93
3. olwd
40
01:46.65
4. xilli 02:11.22
5. Burrito12345 03:16.02
6. KingHeeSu
6
03:58.44
7. Gage Williams
27
06:02.20
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 -----:--
Today
1. HackMan
116
01:22.24
2. olwd
40
01:53.47
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.
714
00:14.28
2. nabi
92
00:15.73
3. numbrr
301
00:19.18
4. BingBongBob
108
00:19.82
5. vowels
216
00:21.83
6. Joshua Zhang [Studen...
8
00:22.57
7. Make
275
00:23.69
8. jai22933
23
00:24.54
9. qqwref
261
00:25.55
10. vx14
155
00:27.92
AO5
1. Douglas Shamlin Jr.
714
00:14.96
2. nabi
92
00:16.49
3. BingBongBob
108
00:19.98
4. numbrr
301
00:20.31
5. vowels
216
00:22.17
6. Joshua Zhang [Studen...
8
00:23.06
7. Make
275
00:24.78
8. jai22933
23
00:25.09
9. qqwref
261
00:26.34
10. vx14
155
00:28.01
AO12
1. Douglas Shamlin Jr.
714
00:16.47
2. nabi
92
00:19.36
3. BingBongBob
108
00:21.05
4. numbrr
301
00:23.62
5. vowels
216
00:24.20
6. Make
275
00:25.53
7. jai22933
23
00:26.96
8. qqwref
261
00:27.68
9. Joshua Zhang [Studen...
8
00:28.84
10. vx14
155
00:29.77
Robots / programmatic solversinfo  
1.tlstyer
134
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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2025-11-04 10:46:36

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