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
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This Week
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Today
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MO3
1.Dust14
52
01:59.76
2.Sonar
51
02:20.03
3.TashiroMiraki
66
02:28.26
4.HotSloppyFish
44
02:32.67
5.multiman
74
02:33.15
6.Grozilniche
41
02:52.92
7.FAlin
122
02:55.96
8.Muhammad Hesham
65
03:11.91
9.anonymous
95
03:12.41
10.rokugone
58
03:12.66
AO5
1.Dust14
52
02:14.25
2.Sonar
51
02:23.37
3.multiman
74
02:33.15
4.TashiroMiraki
66
02:39.85
5.FAlin
122
02:59.95
6.HotSloppyFish
44
03:01.53
7.Grozilniche
41
03:11.10
8.rokugone
58
03:13.37
9.anonymous
95
03:20.05
10.Nika_1983
54
03:31.30
AO12
1.TashiroMiraki
66
02:45.12
2.Sonar
51
03:00.48
3.multiman
74
03:14.19
4.FAlin
122
03:21.02
5.HotSloppyFish
44
03:21.97
6.anonymous
95
03:36.57
7.Taiko K
38
03:53.22
8.Muhammad Hesham
65
04:09.96
9.sealhy
81
04:10.61
10.SoiTrang
24
04:15.43
Robots / programmatic solversinfo  
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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.
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2021-10-19 09:59:43

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