Light Up


Translate this site.

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.

Video Tutorial
Hide the rules
Light Up


7x7 Easy Light Up | 7x7 Normal Light Up | 7x7 Hard Light Up | 10x10 Easy Light Up | 10x10 Normal Light Up | 10x10 Hard Light Up | 14x14 Easy Light Up | 14x14 Normal Light Up | 14x14 Hard Light Up | 25x25 Easy Light Up | 25x25 Normal Light Up | 25x25 Hard Light Up

New Puzzle
This Month
1. zenzaburo 00:16.90
2. niqnna
18
00:25.46
3. kanon
55
00:27.74
4. boru
127
00:30.26
5. LemonSherbet 00:30.54
6. gogost 00:31.58
7. maxmoor 00:37.66
8. swaizecker
41
00:38.85
9. Judaske
33
00:39.07
10. BeccaWorm
125
00:43.69
11. SophieK
58
00:47.08
12. LordHedgie 01:04.28
13. guizmoo 01:05.22
14. SWICT
46
01:05.68
15. Corallystarfish
54
01:08.87
16. llmt9
92
01:24.68
17. Baizhisheng
5
01:25.07
18. emeraldnight
6
01:25.97
19. tightlikerope 01:27.08
20. cowtown 01:31.26
This Week
1. zenzaburo 00:18.28
2. niqnna
18
00:25.46
3. kanon
55
00:27.74
4. Judaske
33
00:39.07
5. LordHedgie 01:04.28
6. cowtown 01:31.26
7. JOKQWE 01:57.38
8. haitao 05:43.68
9. CHENG123 08:09.91
10.--- empty -----:--
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1.--- empty -----:--
2.--- empty -----:--
3.--- empty -----:--
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. numbrr
314
00:12.77
2. TashiroMiraki
224
00:14.96
3. gtkrouwel
134
00:16.28
4. Klunk
24
00:17.36
5. mtanzer
140
00:18.21
6. sfumato
167
00:20.43
7. Yeti
138
00:20.45
8. Nick
217
00:21.19
9. goodman15
61
00:21.64
10. mmyama
79
00:23.64
AO5
1. numbrr
314
00:14.36
2. TashiroMiraki
224
00:15.81
3. gtkrouwel
134
00:16.52
4. mtanzer
140
00:19.33
5. Yeti
138
00:19.59
6. sfumato
167
00:22.39
7. Nick
217
00:23.23
8. goodman15
61
00:24.61
9. Oryn
173
00:25.09
10. Yonatan Yarhi
72
00:25.89
AO12
1. numbrr
314
00:17.12
2. TashiroMiraki
224
00:17.29
3. gtkrouwel
134
00:19.99
4. Yeti
138
00:25.01
5. goodman15
61
00:27.90
6. Oryn
173
00:28.67
7. mtanzer
140
00:29.15
8. qqwref
266
00:29.59
9. Yonatan Yarhi
72
00:30.12
10. summernight
232
00:32.05
Robots / programmatic solversinfo  
1.tlstyer
144
00:00.008
2.hum@b0t
91
00:00.165
3.cheyette00:00.239

* 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.
You need to be logged in to track your averages

New Puzzle

Find your position in

Find it
www.puzzle-light-up.com
Remove Ads | Report This Ad