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. rtj
186
00:06.92
2. TomGuo
112
00:07.04
3. mmyama 00:07.14
4. UncraftedName
46
00:08.28
5. tufelix367 00:09.20
6. daisyisaflower 00:09.63
7. feasel
79
00:10.37
8. JaidenGS 00:10.68
9. lemurkong 00:11.07
10. bjbjb 00:11.23
11. Nsqcsj 00:12.18
12. niqnna
18
00:12.35
13. cAutioned_
18
00:12.42
14. Jbrunt
75
00:12.52
15. fishysua
94
00:12.54
16. Solander 00:12.94
17. Tonio327
96
00:13.48
18. Goochelaar
94
00:13.92
19. Oddverse 00:14.41
20. Varun Gopal
18
00:14.61
This Week
1. rtj
186
00:06.92
2. TomGuo
112
00:10.10
3. tufelix367 00:11.17
4. lemurkong 00:12.48
5. Oddverse 00:14.41
6. fishysua
94
00:14.99
7. HackMan
66
00:15.07
8. Varun Gopal
18
00:16.58
9. Noooo-dle
36
00:17.86
10. Ashwin Anil
13
00:17.90
11. Solander 00:20.31
12. dickpenguin 00:22.01
13. AlexanderIII 00:22.33
14. Nsqcsj 00:22.62
15. K K
10
00:27.26
16. ambiorix 00:28.04
17. itsmeyaboi 00:31.27
18. yvounet 00:35.93
19. rodpodd 00:37.13
20. justforstar
6
00:40.14
Today
1. TomGuo
112
00:14.69
2. Noooo-dle
36
00:17.86
3. ambiorix 00:28.04
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
MO3
1. mtanzer
140
00:05.22
2. sfumato
161
00:05.44
3. Arok
82
00:05.60
4. TashiroMiraki
152
00:06.24
5. numbrr
151
00:06.26
6. Nick
181
00:06.31
7. Douglas Shamlin Jr.
455
00:06.33
8. Sonar
76
00:06.37
9. sauceguardian
59
00:06.63
10. qqwref
230
00:06.64
AO5
1. mtanzer
140
00:05.96
2. sfumato
161
00:06.02
3. Arok
82
00:06.06
4. numbrr
151
00:06.55
5. qqwref
230
00:06.71
6. TashiroMiraki
152
00:06.78
7. Sonar
76
00:06.81
7. Nick
181
00:06.81
9. Douglas Shamlin Jr.
455
00:06.85
10. sauceguardian
59
00:06.91
AO12
1. sfumato
161
00:06.43
2. mtanzer
140
00:06.94
3. numbrr
151
00:07.27
4. Arok
82
00:07.29
5. Douglas Shamlin Jr.
455
00:07.34
6. Sonar
76
00:07.47
7. vowels
179
00:07.71
8. sauceguardian
59
00:07.88
9. qqwref
230
00:07.94
10. TashiroMiraki
152
00:08.02
Robots / programmatic solversinfo  
1.tlstyer
1315
00:00.009
2.penguain
52
00:00.915
3.--- empty -----:--

* 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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2023-03-25 15:00:22

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