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. mmyama
46
00:18.69
2. Blindtoyou
41
00:22.63
3. tufelix367 00:24.44
4. niqnna
18
00:25.29
5. Mauser 00:29.14
6. burgie12 00:34.07
7. noliai
140
00:40.91
8. Nanoulefou 00:41.07
9. Amator 00:41.25
10. maxmoor 00:42.00
11. Batrach
44
00:48.78
12. fugglydo 00:49.33
13. qobi
176
00:51.37
14. Sarku 00:52.99
15. Dorice
191
00:55.15
16. sporg 01:04.65
17. DSW05175 01:16.12
18. Kenolo353
75
01:17.11
19. yxshen0715 01:22.51
20. Goochelaar
98
01:29.29
This Week
1. mmyama
46
00:20.81
2. Blindtoyou
41
00:22.63
3. tufelix367 00:24.44
4. niqnna
18
00:36.77
5. burgie12 00:39.07
6. fugglydo 00:49.33
7. noliai
140
00:52.58
8. Batrach
44
00:56.34
9. Kenolo353
75
01:17.11
10. qobi
176
01:55.41
11. 수민
9
02:44.06
12. mama777 03:04.64
13. Skallos
24
03:22.00
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Today
1. tufelix367 00:24.44
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MO3
1. numbrr
201
00:16.69
2. mtanzer
140
00:18.21
3. sfumato
164
00:20.43
4. Nick
217
00:21.19
5. TashiroMiraki
174
00:22.63
6. qqwref
258
00:23.72
7. Oryn
122
00:24.10
8. mmyama
46
00:24.33
9. TomGuo
131
00:25.30
10. Yonatan Yarhi
72
00:25.32
AO5
1. numbrr
201
00:16.89
2. mtanzer
140
00:19.33
3. sfumato
164
00:22.39
4. Nick
217
00:23.23
5. TashiroMiraki
174
00:23.83
6. Oryn
122
00:25.09
7. Yonatan Yarhi
72
00:25.89
8. qqwref
258
00:26.78
9. crascodyllea
85
00:27.92
10. Douglas Shamlin Jr.
525
00:28.96
AO12
1. numbrr
201
00:23.71
2. Oryn
122
00:28.67
3. mtanzer
140
00:29.15
4. qqwref
258
00:29.59
5. TashiroMiraki
174
00:29.62
6. Yonatan Yarhi
72
00:30.12
7. Nick
217
00:32.64
8. crascodyllea
85
00:38.13
9. 2015YINJ02
140
00:38.88
10. rozer
175
00:39.74
Robots / programmatic solversinfo  
1.tlstyer
1325
00:00.009
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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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2023-12-10 10:10:12

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