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. numbrr
285
00:08.95
2. mmyama
72
00:19.35
3. Kimseunghyeon 00:19.65
4. toblin 00:20.67
5. Make
267
00:21.99
6. fugglydo 00:24.38
7. Lupusu
10
00:37.08
8. Evannnnnn 00:38.03
9. Dorice
236
00:39.49
10. puzzlingpatzer
77
00:40.00
11. Theck
13
00:40.88
12. amdo1 00:44.11
13. Ryong L
74
00:45.49
14. 凉風星宫
16
00:50.49
15. jmk770 00:50.58
16. grimmgirlfandom
141
00:52.76
17. BigBearDeluxe 00:58.27
18. Pissumurone 01:01.32
19. Sombro64 01:08.37
20. Lespring22 01:14.03
This Week
1. toblin 00:24.66
2. Evannnnnn 00:38.03
3. Theck
13
00:40.88
4. grimmgirlfandom
141
00:52.76
5. amdo1 00:53.98
6. Pissumurone 01:01.32
7. Sombro64 01:08.37
8. Ryong L
74
01:38.16
9. Koakuma
46
02:42.97
10. Koromo
4
04:31.05
11. FunAcroFly
42
08:25.02
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Today
1. toblin 00:26.17
2. amdo1 00:53.98
3. FunAcroFly
42
08:25.02
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5.--- empty -----:--
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MO3
1. numbrr
285
00:13.27
2. TashiroMiraki
214
00:14.96
3. Klunk
24
00:17.36
4. mtanzer
140
00:18.21
5. gtkrouwel
112
00:20.34
6. sfumato
165
00:20.43
7. Nick
217
00:21.19
8. mmyama
72
00:23.64
9. qqwref
259
00:23.72
10. Oryn
148
00:24.10
AO5
1. numbrr
285
00:15.13
2. TashiroMiraki
214
00:15.81
3. mtanzer
140
00:19.33
4. gtkrouwel
112
00:21.23
5. sfumato
165
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
202
00:26.52
AO12
1. TashiroMiraki
214
00:17.29
2. numbrr
285
00:17.37
3. gtkrouwel
112
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
202
00:32.05
9. Nick
217
00:32.64
10. Yeti
104
00:37.33
Robots / programmatic solversinfo  
1.tlstyer
106
00:00.008
2.hum@b0t
91
00:00.165
3.Paul Bismuth
1
00:02.206

* 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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2025-03-28 15:25:54

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