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. nassimab1
19
00:10.17
2. tufelix367 00:10.55
3. TomGuo
84
00:12.84
4. Siloam 00:13.35
5. 2015YINJ02
24
00:13.68
6. Make
115
00:14.70
7. teliot 00:15.96
8. L.W.
15
00:18.20
9. honeychen45
45
00:19.83
10. Dymond
144
00:22.10
11. SliverHawk
64
00:22.34
12. qobi
119
00:26.51
13. Pomphuus 00:26.61
14. Solander 00:26.94
15. Dorice
123
00:27.25
16. zxd233 00:27.60
17. Fred522 00:29.18
18. 嘉和逆天(Chenhao...
6
00:32.22
19. LeeRe
4
00:35.46
20. Gyu Hwa Lee
29
00:37.36
This Week
1. tufelix367 00:11.19
2. TomGuo
84
00:16.38
3. 嘉和逆天(Chenhao...
6
00:32.22
4. Dorice
123
00:36.64
5. NZjazzman 00:43.94
6. baimohan 01:57.82
7. Nicob 02:43.79
8.--- empty -----:--
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Today
1. TomGuo
84
00:26.39
2.--- empty -----:--
3.--- empty -----:--
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
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20.--- empty -----:--
MO3
1. mtanzer
123
00:08.64
2. sfumato
144
00:08.86
3. TashiroMiraki
118
00:09.36
4. Nick
128
00:10.71
5. qqwref
129
00:12.08
6. numbrr
98
00:12.20
7. million
48
00:12.35
8. Daanbe
90
00:13.93
9. Fastfaxer
115
00:14.57
10. Oryn
75
00:15.33
AO5
1. mtanzer
123
00:09.81
2. sfumato
144
00:11.16
3. qqwref
129
00:11.75
4. Oryn
75
00:11.95
5. Nick
128
00:12.38
6. numbrr
98
00:12.61
7. TashiroMiraki
118
00:14.15
8. million
48
00:14.24
9. Daanbe
90
00:14.97
10. Fastfaxer
115
00:15.77
AO12
1. mtanzer
123
00:11.16
2. sfumato
144
00:16.16
3. numbrr
98
00:16.29
4. qqwref
129
00:16.68
5. Ramasp
140
00:21.47
6. Fastfaxer
115
00:22.80
7. Nick
128
00:22.96
8. Make
115
00:23.28
9. million
48
00:24.02
10. Daanbe
90
00:28.49
Robots / programmatic solversinfo  
1.tlstyer
1314
00:00.009
2.--- empty -----:--
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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2022-05-21 22:04:42

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