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. SkyBean1201
50
00:02.01
2. sauceguardian
78
00:02.31
3. daklqw
8
00:02.72
4. mmyama
55
00:03.41
5. beznickowy 00:03.42
6. Kimseunghyeon 00:03.47
7. CipherStar
25
00:03.48
8. emm0319 00:03.72
8. 71448Eva
7
00:03.72
10. Beesweezy
55
00:03.73
11. Pamma 00:03.85
12. qobi
195
00:03.89
13. Piroska9
48
00:03.93
14. beatrixwashere
39
00:04.01
15. Acoustiiic 00:04.05
16. justsoso987
80
00:04.14
17. AlienTheAllen
4
00:04.35
18. grimmgirlfandom
91
00:04.46
19. Daphnuk 00:04.50
20. Axiomatically_confus...
17
00:04.69
This Week
1. daklqw
8
00:02.93
2. sauceguardian
78
00:03.52
3. Beesweezy
55
00:03.73
4. justsoso987
80
00:04.14
5. Piroska9
48
00:04.39
6. Kimseunghyeon 00:04.43
7. mmyama
55
00:04.70
8. fimcg 00:04.94
9. rachelkhoo
21
00:05.25
10. Inbetween
5
00:06.28
11. FrankWang 00:06.49
12. pipifax 00:06.58
13. L^2 Math
25
00:06.59
14. AlienTheAllen
4
00:06.61
15. qobi
195
00:06.63
16. tzivi 00:06.69
17. seb00066
69
00:06.81
18. issal 00:06.86
19. GaneshaFan316 00:06.87
20. Manduniko
7
00:07.04
Today
1. Kimseunghyeon 00:04.78
2. L^2 Math
25
00:08.45
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7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
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13.--- empty -----:--
14.--- empty -----:--
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20.--- empty -----:--
MO3
1. jaybrainer
192
00:01.93
2. Arok
99
00:02.20
3. vowels
203
00:02.24
4. numbrr
245
00:02.26
5. sfumato
164
00:02.50
5. mtanzer
140
00:02.50
7. BingBongBob
107
00:02.53
8. qqwref
259
00:02.55
9. SkyBean1201
50
00:02.59
10. Douglas Shamlin Jr.
622
00:02.62
AO5
1. jaybrainer
192
00:01.97
2. numbrr
245
00:02.36
2. Arok
99
00:02.36
4. vowels
203
00:02.37
5. Douglas Shamlin Jr.
622
00:02.58
6. SkyBean1201
50
00:02.61
7. mtanzer
140
00:02.63
8. sauceguardian
78
00:02.67
9. boru
96
00:02.68
10. sfumato
164
00:02.73
AO12
1. jaybrainer
192
00:02.49
2. vowels
203
00:02.67
3. numbrr
245
00:02.82
4. Arok
99
00:02.90
5. Douglas Shamlin Jr.
622
00:03.00
6. mtanzer
140
00:03.09
7. sfumato
164
00:03.16
8. sauceguardian
78
00:03.18
9. TashiroMiraki
196
00:03.27
10. qqwref
259
00:03.28
Robots / programmatic solversinfo  
1.tlstyer
41
00:00.009
2.penguain
57
00:00.676
3.rfsjnhdbh04:01.657

* 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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2024-06-21 04:38:22

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