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.Arok
48
00:01.97
2.mtanzer
94
00:02.14
3.NickC
70
00:02.78
4.sfumato
97
00:02.80
5.TashiroMiraki
66
00:02.85
6.vowels
64
00:02.98
7.ianmcb01
20
00:03.23
8.Sonar
51
00:03.45
9.ZNorsby00:03.52
9.Fastfaxer
80
00:03.52
11.Brian Murphy
13
00:03.56
12.-Wiffles-#0506
12
00:03.68
13.Jerz0000:03.70
14.Alp Ergün
7
00:03.72
15.NooM
98
00:03.83
16.swaizecker00:03.95
17.Casosss
37
00:03.96
18.jotheone230
9
00:04.25
19.Yamasan
10
00:04.34
20.Piroska9
23
00:04.34
This Week
1.sfumato
97
00:02.80
2.NickC
70
00:03.02
3.ZNorsby00:03.52
3.Fastfaxer
80
00:03.52
5.Brian Murphy
13
00:03.56
6.-Wiffles-#0506
12
00:03.68
7.tufelix36700:04.51
8.swaizecker00:04.61
9.Piroska9
23
00:04.81
10.suuperch
67
00:05.06
11.borophyll
16
00:05.59
12.mmyama00:05.76
13.Caktus
18
00:06.13
14.Dovenburg00:06.21
15.TomGuo
52
00:06.29
16.Avorax00:08.11
17.llTwisterll00:08.37
18.AlexanderIII00:09.90
19.nosenugget
51
00:09.94
20.steno300:10.17
Today
1.Fastfaxer
80
00:03.52
2.Wuni1400:14.84
3.AlexanderIII00:17.43
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.Arok
48
00:02.48
2.mtanzer
94
00:02.67
3.sfumato
97
00:03.25
4.sauceguardian
24
00:03.36
5.Delabranche
43
00:03.44
6.TashiroMiraki
66
00:03.46
7.NickC
70
00:03.54
8.Oryn
41
00:03.58
9.PuzzleMaestro
34
00:03.64
10.Ake
32
00:03.75
AO5
1.Arok
48
00:02.78
2.mtanzer
94
00:02.88
3.Delabranche
43
00:03.51
4.sfumato
97
00:03.55
5.NickC
70
00:03.61
6.TashiroMiraki
66
00:03.74
6.sauceguardian
24
00:03.74
8.Oryn
41
00:03.86
8.PuzzleMaestro
34
00:03.86
10.Ake
32
00:04.05
AO12
1.Arok
48
00:03.19
2.mtanzer
94
00:03.32
3.sfumato
97
00:03.78
4.sauceguardian
24
00:04.12
5.TashiroMiraki
66
00:04.20
6.PuzzleMaestro
34
00:04.23
7.NickC
70
00:04.52
8.million
47
00:04.59
9.DAEDU
35
00:04.70
10.Oryn
41
00:04.86
Robots / programmatic solversinfo  
1.tlstyer
1314
00:00.009
2.penguain
38
00:00.676
3.rfsjnhdbh04:01.657

* 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 08:57:19

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