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. Arok
92
00:01.82
2. SkyBean1201
26
00:02.55
3. zach777
20
00:02.80
4. sauceguardian
65
00:02.97
5. mmyama
40
00:03.01
6. turciaaIt
14
00:03.03
7. eatbing 00:03.04
8. Pablo The Penguin
13
00:03.10
9. nrnerfguy
13
00:03.25
10. Blindtoyou
15
00:03.29
11. IcePickLobotomy 00:03.41
12. TomGuo
130
00:03.42
13. CipherStar
24
00:03.51
14. Arjun25
21
00:03.52
15. SirFish 00:03.55
16. 71448Eva
5
00:03.65
17. wowo0518 00:03.91
18. Piroska9
45
00:03.95
19. Freakazoyd
50
00:04.02
20. Jaiven
22
00:04.09
This Week
1. SkyBean1201
26
00:02.55
2. mmyama
40
00:03.01
3. Pablo The Penguin
13
00:03.10
4. turciaaIt
14
00:03.17
5. nrnerfguy
13
00:03.25
6. IcePickLobotomy 00:03.41
7. Piroska9
45
00:04.02
8. Jerz00 00:04.12
9. CipherStar
24
00:04.22
10. Blindtoyou
15
00:04.25
11. Buizel 00:04.32
12. oshi
15
00:04.44
13. GS128
14
00:04.55
14. xiaoxin 00:04.64
15. 71448Eva
5
00:04.73
16. Jaiven
22
00:04.75
17. treblaHY
4
00:04.87
18. tufelix367 00:05.04
19. bjbjb 00:05.05
19. niqnna
18
00:05.05
Today
1. sgychen6
29
00:10.80
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8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
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20.--- empty -----:--
MO3
1. Arok
92
00:02.20
2. vowels
197
00:02.24
3. sfumato
164
00:02.50
3. mtanzer
140
00:02.50
5. BingBongBob
106
00:02.53
6. qqwref
257
00:02.55
7. Douglas Shamlin Jr.
508
00:02.62
8. numbrr
186
00:02.63
9. sauceguardian
65
00:02.67
10. jaybrainer
147
00:02.68
AO5
1. Arok
92
00:02.36
2. vowels
197
00:02.37
3. Douglas Shamlin Jr.
508
00:02.58
4. mtanzer
140
00:02.63
5. sauceguardian
65
00:02.67
6. boru
87
00:02.68
7. numbrr
186
00:02.69
8. sfumato
164
00:02.73
8. BingBongBob
106
00:02.73
10. qqwref
257
00:02.86
AO12
1. vowels
197
00:02.67
2. Arok
92
00:02.90
3. Douglas Shamlin Jr.
508
00:03.00
4. mtanzer
140
00:03.09
5. numbrr
186
00:03.15
6. sfumato
164
00:03.16
7. sauceguardian
65
00:03.18
8. qqwref
257
00:03.28
9. boru
87
00:03.45
10. jaybrainer
147
00:03.49
Robots / programmatic solversinfo  
1.tlstyer
1322
00:00.009
2.penguain
54
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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2023-09-30 05:30:30

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