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
113
00:01.80
2.Arok
52
00:01.86
3.TashiroMiraki
83
00:02.99
4.Dovenburg00:03.39
5.llTwisterll00:03.53
5.niconiconi~
9
00:03.53
7.vowels
77
00:03.68
8.finspac
47
00:03.77
9.54188
8
00:03.89
10.dovenburgwho?
6
00:03.92
11.TheFangSome1300:03.93
12.Oryn
54
00:03.95
13.Piroska9
27
00:03.99
14.Geras
44
00:04.00
15.jorekami
23
00:04.04
16.olafher
5
00:04.21
17.Joris3Pinter00:04.26
17.tufelix36700:04.26
19.TheCritic00:04.41
20.nacho00:04.44
This Week
1.sfumato
113
00:01.80
2.TashiroMiraki
83
00:03.27
3.olafher
5
00:04.21
4.Joris3Pinter00:04.26
5.Peksc2
10
00:04.51
6.Piroska9
27
00:04.66
7.tufelix36700:04.67
8.Europium
6
00:04.76
9.Jerz0000:04.81
10.Daanbe
29
00:04.84
11.fimcg00:04.90
12.zinccopper00:05.41
13.Ciopaka
18
00:05.55
14.ochidi00:05.63
15.bjbjb00:05.84
16.bridgeshollie00:06.07
17.qobi
95
00:06.14
18.Atti#9884
4
00:06.16
19.asdfqwer00:06.25
20.ONG KAI LE CALEB Moe
2
00:06.30
Today
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MO3
1.Arok
52
00:02.34
2.sfumato
113
00:02.50
3.mtanzer
95
00:02.67
4.sauceguardian
25
00:03.36
4.TashiroMiraki
83
00:03.36
6.Delabranche
47
00:03.44
7.NickC
81
00:03.54
8.Oryn
54
00:03.58
9.PuzzleMaestro
37
00:03.64
10.Ake
32
00:03.75
AO5
1.Arok
52
00:02.45
2.sfumato
113
00:02.73
3.mtanzer
95
00:02.88
4.TashiroMiraki
83
00:03.39
5.Delabranche
47
00:03.51
6.NickC
81
00:03.61
7.sauceguardian
25
00:03.74
8.Oryn
54
00:03.86
8.PuzzleMaestro
37
00:03.86
10.Ake
32
00:04.05
AO12
1.Arok
52
00:03.07
2.sfumato
113
00:03.16
3.mtanzer
95
00:03.32
4.sauceguardian
25
00:04.12
5.TashiroMiraki
83
00:04.20
6.PuzzleMaestro
37
00:04.23
7.NickC
81
00:04.52
8.million
48
00:04.59
9.Delabranche
47
00:04.61
10.DAEDU
35
00:04.70
Robots / programmatic solversinfo  
1.tlstyer
1314
00:00.009
2.penguain
39
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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2021-11-30 05:19:48

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