Light Up


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Light Up (Akari) is a logic puzzle with simple rules and challenging solutions.

The rules are simple. Light Up is played on a rectangular grid. The grid has both black cells and white cells in it. The objective is to place light bulbs on the grid so that every white square is lit. A cell is illuminated by a light bulb if they're in the same row or column, and if there are no black cells between them. Also, no light bulb may illuminate another light bulb.
Some of the black cells have numbers in them. A number in a black cell indicates how many light bulbs share an edge with that cell.
Left click a square to place a light bulb. Right click to mark with X.

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Light Up


7x7 Light Up Easy | 7x7 Light Up Normal | 7x7 Light Up Hard | 10x10 Light Up Easy | 10x10 Light Up Normal | 10x10 Light Up Hard | 14x14 Light Up Easy | 14x14 Light Up Normal | 14x14 Light Up Hard | 25x25 Light Up Easy | 25x25 Light Up Normal | 25x25 Light Up Hard

This Month
1.sfumato
97
00:45.66
2.TashiroMiraki
66
00:47.35
3.PuzzleMaestro
34
00:49.94
4.Sonar
51
00:53.06
5.mmyama01:10.24
6.sirgilbert801:13.08
7.Sylvire01:14.50
8.tufelix36701:16.16
9.Oryn
41
01:18.15
10.Parade01:21.58
11.Craxin01:22.44
12.vowels
64
01:25.63
13.TomGuo
52
01:32.45
14.xochitl01:35.78
15.Rompi201:37.45
16.bjbjb01:38.40
17.seb00066
23
01:38.91
18.qobi
91
01:43.94
19.HarryCanyon01:47.20
20.stoopid01:48.89
This Week
1.sfumato
97
00:45.66
2.TashiroMiraki
66
00:47.35
3.Sonar
51
00:59.54
4.mmyama01:10.24
5.Sylvire01:14.50
6.tufelix36701:20.46
7.Craxin01:22.98
8.TomGuo
52
01:32.45
9.Rompi201:45.33
10.vowels
64
01:46.87
11.LOWERCASEGIRL02:00.90
12.seb00066
23
02:03.35
13.Wuni1402:11.50
14.Wrist
22
02:23.96
15.qobi
91
02:32.28
16.loperon02:51.45
17.samoan3d03:02.02
18.JoeBuck03:11.92
19.Ophalan03:59.91
20.tetraxile
19
04:16.80
Today
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MO3
1.mtanzer
94
00:55.74
2.sfumato
97
00:57.13
3.TashiroMiraki
66
00:58.75
4.Sonar
51
00:58.79
5.sauceguardian
24
01:00.54
6.PuzzleMaestro
34
01:02.11
7.million
47
01:04.45
8.DAEDU
35
01:06.90
9.rozer
150
01:10.83
10.HotSloppyFish
44
01:15.04
AO5
1.sfumato
97
00:58.03
2.mtanzer
94
01:01.59
3.TashiroMiraki
66
01:01.94
4.Sonar
51
01:01.96
5.PuzzleMaestro
34
01:02.73
6.sauceguardian
24
01:04.18
7.million
47
01:09.30
8.rozer
150
01:15.03
9.DAEDU
35
01:17.62
10.HotSloppyFish
44
01:18.30
AO12
1.Sonar
51
01:06.89
2.TashiroMiraki
66
01:07.38
3.mtanzer
94
01:07.67
4.sfumato
97
01:07.90
5.sauceguardian
24
01:08.06
6.million
47
01:11.83
7.rozer
150
01:21.27
8.HotSloppyFish
44
01:26.35
9.DAEDU
35
01:29.10
10.Ramasp
103
01:35.46
Robots / programmatic solversinfo  
1.tlstyer
1314
00:00.011
2.penguain
38
00:07.066
3.--- empty -----:--

* 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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2021-10-19 09:04:40

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