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. Evannnnnn 00:03.79
4. Piroska9
60
00:04.39
5. mmyama
74
00:05.01
6. puffy_blue
27
00:05.69
7. MrMythicorn
104
00:06.04
8. syucream
93
00:06.06
9. WilsonCWMui
156
00:06.58
10. zooandroo
83
00:06.66
11. Victorious1
168
00:06.82
12. qobi
220
00:07.21
13. Koakuma
46
00:07.34
14. HackMan
97
00:07.61
15. hbbimichel1
6
00:07.63
16. lauraterry1 00:07.78
17. Dorice
238
00:07.95
18. RavenSandcastle 00:08.07
19. toaster611
48
00:08.48
20. Anakin Skywalker
24
00:08.49
This Week
1. Kimseunghyeon 00:03.89
2. mmyama
74
00:06.26
3. WilsonCWMui
156
00:06.58
4. RavenSandcastle 00:08.07
5. Anakin Skywalker
24
00:08.49
6. asatzhh
14
00:08.56
7. Fabiogaudo
19
00:12.00
8. Athul S
12
00:12.12
9. Bobo8128 00:13.18
10. lidan001
6
00:21.80
11. Koakuma
46
00:31.99
12. 九曜
53
01:16.74
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Today
1. lidan001
6
00:21.80
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5.--- empty -----:--
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MO3
1. numbrr
288
00:02.49
2. jaybrainer
225
00:02.68
3. vowels
214
00:02.71
4. Yeti
109
00:03.03
5. mtanzer
140
00:03.06
5. Douglas Shamlin Jr.
683
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
288
00:02.73
2. jaybrainer
225
00:02.99
3. vowels
214
00:03.02
4. Douglas Shamlin Jr.
683
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
288
00:03.28
2. vowels
214
00:03.83
3. mtanzer
140
00:03.89
4. jaybrainer
225
00:04.20
5. Arok
108
00:04.22
6. Douglas Shamlin Jr.
683
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
108
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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2025-04-21 17:34:53

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