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 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

This Month
1. Arok
108
00:02.86
2. Kimseunghyeon 00:03.63
3. goldpuffle
11
00:03.85
4. grimmgirlfandom
146
00:04.21
5. Piroska9
61
00:04.64
6. mmyama
75
00:05.01
7. Candice Cheng
5
00:05.64
8. syucream
94
00:06.06
9. WilsonCWMui
157
00:06.58
10. ropinag
3
00:06.76
11. Victorious1
170
00:06.82
12. qobi
221
00:07.21
13. HackMan
98
00:07.61
14. hbbimichel1
6
00:07.63
15. lauraterry1 00:07.78
16. Dorice
238
00:07.95
17. RavenSandcastle 00:08.07
18. toaster611
48
00:08.48
19. Anakin Skywalker
38
00:08.49
20. asatzhh
18
00:08.56
This Week
1. Kimseunghyeon 00:03.81
2. Piroska9
61
00:04.64
3. CauDravan
37
00:09.15
4. ShaneTheSloth
6
00:12.65
5. RosemaryW 00:30.89
6. jjsw0204
11
00:57.01
7. FunAcroFly
53
01:12.66
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MO3
1. numbrr
289
00:02.49
2. jaybrainer
226
00:02.68
3. vowels
214
00:02.71
4. Yeti
110
00:03.03
5. mtanzer
140
00:03.06
5. Douglas Shamlin Jr.
685
00:03.06
7. nabi
92
00:03.21
8. Arok
108
00:03.31
9. TashiroMiraki
214
00:03.43
10. Klunk
24
00:03.64
AO5
1. numbrr
289
00:02.73
2. jaybrainer
226
00:02.99
3. vowels
214
00:03.02
4. Douglas Shamlin Jr.
685
00:03.09
5. mtanzer
140
00:03.25
5. nabi
92
00:03.25
7. Arok
108
00:03.30
8. TashiroMiraki
214
00:03.59
9. Klunk
24
00:03.74
10. Oryn
148
00:03.84
AO12
1. numbrr
289
00:03.28
2. vowels
214
00:03.83
3. mtanzer
140
00:03.89
4. jaybrainer
226
00:04.20
5. Arok
108
00:04.22
6. Douglas Shamlin Jr.
685
00:04.52
7. sfumato
166
00:04.54
8. Oryn
148
00:04.57
9. TashiroMiraki
214
00:04.58
10. Klunk
24
00:04.81
Robots / programmatic solversinfo  
1.tlstyer
109
00:00.007
2.hum@b0t
91
00:00.158
3.LINGO00:19.415

* 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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2025-05-02 04:20:28

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