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. gtkrouwel
106
00:49.37
2. mmyama
63
00:57.99
3. lookchin 01:00.32
4. numbrr
269
01:00.54
5. joszwaylen 01:08.01
6. TomGuo
138
01:19.66
7. Kimseunghyeon 01:34.73
8. seeker123
57
01:44.23
9. HackMan
91
01:53.62
10. noliai
177
01:56.01
11. geyik
170
02:03.79
12. Bertie 02:05.59
13. Dorice
227
02:16.31
14. Lady
40
02:18.94
15. Liz76
65
02:19.76
16. grimmgirlfandom
130
02:33.63
17. danpuzzler 02:37.01
18. Praktisix
63
02:44.39
19. randomflyintaco
89
02:48.59
20. soovinssam
30
03:23.34
This Week
1. gtkrouwel
106
00:49.37
2. numbrr
269
01:00.54
3. mmyama
63
01:11.12
4. TomGuo
138
01:19.66
5. noliai
177
01:59.16
6. Kimseunghyeon 02:14.64
7. Dorice
227
02:16.31
8. HackMan
91
02:22.74
9. Praktisix
63
03:17.15
10. AnonyMinor
28
03:44.07
11. Lady
40
04:05.97
12. biluoyuebai
39
05:19.18
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Today
1. mmyama
63
01:29.12
2. noliai
177
03:10.30
3. Praktisix
63
03:43.20
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
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13.--- empty -----:--
14.--- empty -----:--
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18.--- empty -----:--
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MO3
1. TashiroMiraki
210
00:47.55
2. numbrr
269
00:47.88
3. gtkrouwel
106
00:53.61
4. sfumato
164
01:01.21
5. qqwref
259
01:05.62
6. Nick
217
01:07.31
7. mtanzer
140
01:10.95
8. summernight
189
01:12.70
9. mmyama
63
01:13.09
10. Oryn
148
01:13.12
AO5
1. numbrr
269
00:46.63
2. TashiroMiraki
210
00:51.06
3. gtkrouwel
106
00:57.28
4. sfumato
164
01:08.37
5. mtanzer
140
01:11.61
6. qqwref
259
01:13.56
7. summernight
189
01:14.94
8. Oryn
148
01:16.78
9. 2015YINJ02
147
01:20.51
10. mmyama
63
01:24.97
AO12
1. TashiroMiraki
210
00:56.88
2. numbrr
269
01:00.47
3. gtkrouwel
106
01:05.34
4. summernight
189
01:19.65
5. qqwref
259
01:23.77
6. Oryn
148
01:24.66
7. mtanzer
140
01:25.21
8. sfumato
164
01:32.17
9. 2015YINJ02
147
01:40.32
10. crascodyllea
130
01:42.49
Robots / programmatic solversinfo  
1.tlstyer
95
00:00.012
2.--- empty -----:--
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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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2024-12-09 16:33:42

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