Hitori

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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This Month
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This Week
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Today
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MO3
1.	Kaitzschu	02:14.38
2.	anonymous	02:44.89
3.	Douglas Shamlin Jr.	07:19.22
4.	TCL	08:37.90
5.	Make	10:21.03
6.	qqwref	12:07.17
7.	anonymous	14:53.15
8.	qqqmint	15:33.49
9.	Beth Higgins	15:39.48
10.	garbage	16:05.33

AO5
1.	Kaitzschu	02:16.84
2.	Douglas Shamlin Jr.	07:31.55
3.	Make	10:48.57
4.	anonymous	11:17.29
5.	qqwref	12:19.71
6.	TCL	14:43.73
7.	qqqmint	15:47.05
8.	ThighFish	16:58.08
9.	garbage	17:17.43
10.	anonymous	17:19.55

AO12
1.	Kaitzschu	02:35.09
2.	Douglas Shamlin Jr.	08:38.04
3.	Make	11:20.14
4.	qqwref	13:32.84
5.	XuanLan	19:54.69
6.	qqqmint	22:04.63
7.	Kaimu	22:28.33
8.	anonymous	23:34.65
9.	Paula.brr	24:20.52
10.	anonymous	24:47.71

Robots / programmatic solvers		info
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* 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.
You need to be logged in to track your averages

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2025-12-28 16:04:51

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