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. TomGuo
145
00:15.00
2. Kimseunghyeon 00:15.49
3. PickleCat
31
00:19.43
4. numbrr
295
00:20.51
5. toblin 00:21.82
6. Zemmel
66
00:22.02
7. Goomy
112
00:27.12
8. Lupusu
17
00:28.31
9. Jazka 00:30.41
10. Lua
125
00:31.08
11. zooandroo
96
00:33.31
12. sue
39
00:36.52
13. Corallystarfish
54
00:38.64
14. maxmoor 00:40.09
15. amdo1 00:40.17
16. llmt9
79
00:56.93
17. Brainiac2.0
46
00:58.25
18. TQ-V85Sn
85
00:58.70
19. HackMan
104
01:00.54
20. qobi
225
01:04.06
This Week
1. PickleCat
31
00:19.43
2. Zemmel
66
00:22.02
3. toblin 00:27.11
4. Kimseunghyeon 00:27.31
5. Jazka 00:30.41
6. maxmoor 00:40.09
7. a p
12
01:45.28
8. May John
59
02:02.12
9. Liza94You 02:06.44
10. yijitao 02:21.27
11. HackMan
104
04:58.99
12. Fabiogaudo
20
05:01.57
13. shangdou
21
11:04.87
14. BigBearDeluxe6 24:01.66
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Today
1. May John
59
02:02.12
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MO3
1. numbrr
295
00:13.27
2. TashiroMiraki
215
00:14.96
3. Klunk
24
00:17.36
4. mtanzer
140
00:18.21
5. gtkrouwel
116
00:20.34
6. sfumato
166
00:20.43
7. Nick
217
00:21.19
8. mmyama
77
00:23.64
9. qqwref
259
00:23.72
10. Oryn
148
00:24.10
AO5
1. numbrr
295
00:14.36
2. TashiroMiraki
215
00:15.81
3. mtanzer
140
00:19.33
4. gtkrouwel
116
00:21.23
5. sfumato
166
00:22.39
6. Nick
217
00:23.23
7. Oryn
148
00:25.09
8. Yonatan Yarhi
72
00:25.89
9. Klunk
24
00:26.18
10. summernight
209
00:26.52
AO12
1. TashiroMiraki
215
00:17.29
2. numbrr
295
00:17.37
3. gtkrouwel
116
00:26.40
4. Oryn
148
00:28.67
5. mtanzer
140
00:29.15
6. qqwref
259
00:29.59
7. Yonatan Yarhi
72
00:30.12
8. summernight
209
00:32.05
9. Nick
217
00:32.64
10. Yeti
116
00:34.83
Robots / programmatic solversinfo  
1.tlstyer
118
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.
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2025-06-19 08:19:17

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