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
45
00:02.22
2.sauceguardian
24
00:02.61
3.NickC
64
00:02.72
4.sfumato
90
00:02.85
5.TashiroMiraki
53
00:02.95
6.Oryn
37
00:02.99
6.PuzzleMaestro
31
00:02.99
8.Ailurus
79
00:03.33
9.million
46
00:03.45
10.vowels
48
00:03.61
11.ZNorsby00:03.66
12.Jerz0000:03.69
13.mmyama00:03.86
14.NooM
79
00:03.87
15.Aniki00:04.03
16.Geras
40
00:04.05
17.Piroska9
22
00:04.14
18.Freakazoyd00:04.18
19.Europium
6
00:04.38
20.frogs
58
00:04.39
This Week
1.NickC
64
00:02.72
2.sfumato
90
00:02.85
3.TashiroMiraki
53
00:03.56
4.vowels
48
00:03.61
5.Jerz0000:03.99
6.Aureli
38
00:04.56
7.Piroska9
22
00:04.86
8.bjbjb00:05.08
9.Moooon
33
00:05.27
10.tufelix36700:05.29
11.Juris Novads
35
00:05.35
12.batiko00:05.41
13.jotheone230
9
00:05.48
14.Troliver
15
00:05.98
15.junzhi00:06.02
16.kola6
24
00:06.07
17.niqnna
18
00:06.47
18.JITBER00:06.67
19.qobi
87
00:06.88
20.kimbo1971
39
00:07.50
Today
1.NickC
64
00:02.78
2.TashiroMiraki
53
00:03.56
3.bjbjb00:05.45
4.tufelix36700:05.52
5.kimbo1971
39
00:07.50
6.1q2w3e4r5t
5
00:11.87
7.AlexanderIII00:13.27
8.LucasB
2
00:21.32
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.mtanzer
87
00:02.79
2.Arok
45
00:02.97
3.sfumato
90
00:03.25
4.sauceguardian
24
00:03.36
5.NickC
64
00:03.54
6.TashiroMiraki
53
00:03.58
6.Oryn
37
00:03.58
8.PuzzleMaestro
31
00:03.64
9.Delabranche
41
00:03.75
9.Ake
32
00:03.75
AO5
1.mtanzer
87
00:03.01
2.Arok
45
00:03.03
3.NickC
64
00:03.61
4.sauceguardian
24
00:03.74
5.sfumato
90
00:03.76
6.Delabranche
41
00:03.82
7.Oryn
37
00:03.86
7.PuzzleMaestro
31
00:03.86
9.TashiroMiraki
53
00:04.01
10.Ake
32
00:04.05
AO12
1.mtanzer
87
00:03.57
2.Arok
45
00:03.85
3.sauceguardian
24
00:04.12
4.TashiroMiraki
53
00:04.20
5.PuzzleMaestro
31
00:04.23
6.sfumato
90
00:04.24
7.NickC
64
00:04.52
8.million
46
00:04.59
9.DAEDU
35
00:04.70
10.Oryn
37
00:04.86
Robots / programmatic solversinfo  
1.tlstyer
1314
00:00.009
2.penguain
37
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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2021-09-20 13:30:40

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